Reconfigured for iPearlSpecial-Camera

RegulValve.adcChannel and Diverter.flowMtrNr4Cmd for GELSENWASSER

.gitignore

@@ -1,5 +1,13 @@
+Common/bin/
+Common/obj/
 Config/bin/
 Config/obj/
+DataStreamInterface/bin/
+DataStreamInterface/obj/
+DataStreamInterfaceTest/bin/
+DataStreamInterfaceTest/obj/
+DataStreamMeter/bin/
+DataStreamMeter/obj/
 Decrypt/bin/
 Decrypt/obj/
 DeviceTest/bin/
@@ -8,12 +16,20 @@ Dirichlet.Numerics/bin
 Dirichlet.Numerics/obj
 Encrypt/bin/
 Encrypt/obj/
+EventViewer/bin/
+EventViewer/obj/
+Events/bin/
+Events/obj/
 GemCard/bin
 GemCard/obj
+GenCode128/bin
+GenCode128/obj
 GraphLib/bin
 GraphLib/obj
 TracingDB/bin
 TracingDB/obj
+ResetBatchNr/bin
+ResetBatchNr/obj
 RestClient/bin
 RestClient/obj
 Results/bin/
@@ -24,13 +40,14 @@ Statistics/bin/
 Statistics/obj/
 TBF/bin/
 TBF/obj/
-TBFSetup/Debug/
-TBFSetup/Release/
+ToFirstMonitor/bin/
+ToFirstMonitor/obj/
+ToSecondMonitor/bin/
+ToSecondMonitor/obj/
 Users/bin/
 Users/obj/
 UserManagement/bin/
 UserManagement/obj/
-Doc/
 .vs/
 *.suo
 *.bak

Common/Common.csproj

@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{C8939821-BA5C-4988-A3D0-BF53B74865C7}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>Common</RootNamespace>
+    <AssemblyName>Common</AssemblyName>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="SerializableDictionary.cs" />
+    <Compile Include="UIControls\CoolButtonCtrl.cs">
+      <SubType>UserControl</SubType>
+    </Compile>
+    <Compile Include="UIControls\CoolButtonCtrl.Designer.cs">
+      <DependentUpon>CoolButtonCtrl.cs</DependentUpon>
+    </Compile>
+    <Compile Include="UIControls\LviDateTimeColumnComparer.cs" />
+    <Compile Include="UIControls\RoundedRectangle.cs" />
+    <Compile Include="Utils.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="UIControls\ListViewEx.cs">
+      <SubType>Component</SubType>
+    </Compile>
+    <Compile Include="UIControls\ListViewExtensions.cs" />
+    <Compile Include="UIControls\LviIntColumnComparer.cs" />
+    <Compile Include="UIControls\LviTextColumnComparer.cs" />
+  </ItemGroup>
+  <ItemGroup />
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

Common/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("Common")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Common")]
+[assembly: AssemblyCopyright("Copyright ©  2020")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("4e3e3538-fd80-47d5-9417-2268afa590cf")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

Common/SerializableDictionary.cs

@@ -0,0 +1,69 @@
+using System;
+using System.Collections.Generic;
+using System.Xml.Serialization;
+
+namespace Common
+{
+    [XmlRoot("dictionary")]
+    public class SerializableDictionary<TKey, TValue>
+        : Dictionary<TKey, TValue>, IXmlSerializable
+    {
+        public System.Xml.Schema.XmlSchema GetSchema()
+        {
+            return null;
+        }
+
+        public void ReadXml(System.Xml.XmlReader reader)
+        {
+            XmlSerializer keySerializer = new XmlSerializer(typeof(TKey));
+            XmlSerializer valueSerializer = new XmlSerializer(typeof(TValue));
+
+            bool wasEmpty = reader.IsEmptyElement;
+            reader.Read();
+
+            if (wasEmpty)
+                return;
+
+            while (reader.NodeType != System.Xml.XmlNodeType.EndElement)
+            {
+                reader.ReadStartElement("item");
+
+                reader.ReadStartElement("key");
+                TKey key = (TKey)keySerializer.Deserialize(reader);
+                reader.ReadEndElement();
+
+                reader.ReadStartElement("value");
+                TValue value = (TValue)valueSerializer.Deserialize(reader);
+                reader.ReadEndElement();
+
+                this.Add(key, value);
+
+                reader.ReadEndElement();
+                reader.MoveToContent();
+            }
+            reader.ReadEndElement();
+        }
+
+        public void WriteXml(System.Xml.XmlWriter writer)
+        {
+            XmlSerializer keySerializer = new XmlSerializer(typeof(TKey));
+            XmlSerializer valueSerializer = new XmlSerializer(typeof(TValue));
+
+            foreach (TKey key in this.Keys)
+            {
+                writer.WriteStartElement("item");
+
+                writer.WriteStartElement("key");
+                keySerializer.Serialize(writer, key);
+                writer.WriteEndElement();
+
+                writer.WriteStartElement("value");
+                TValue value = this[key];
+                valueSerializer.Serialize(writer, value);
+                writer.WriteEndElement();
+
+                writer.WriteEndElement();
+            }
+        }
+    }
+}

Common/UIControls/CoolButtonCtrl.Designer.cs

@@ -0,0 +1,54 @@
+namespace Common.UIControls
+{
+    partial class CoolButtonCtrl
+    {
+        /// <summary> 
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary> 
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Component Designer generated code
+
+        /// <summary> 
+        /// Required method for Designer support - do not modify 
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.SuspendLayout();
+            // 
+            // CoolButton
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.BackColor = System.Drawing.Color.Transparent;
+            this.DoubleBuffered = true;
+            this.Name = "CoolButton";
+            this.Size = new System.Drawing.Size(72, 29);
+            this.Load += new System.EventHandler(this.CoolButtonLoad);
+            this.SizeChanged += new System.EventHandler(this.CoolButtonSizeChanged);
+            this.Paint += new System.Windows.Forms.PaintEventHandler(this.CoolButtonPaint);
+            this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.CoolButtonMouseDown);
+            this.MouseEnter += new System.EventHandler(this.CoolButtonMouseEnter);
+            this.MouseLeave += new System.EventHandler(this.CoolButtonMouseLeave);
+            this.MouseUp += new System.Windows.Forms.MouseEventHandler(this.CoolButtonMouseUp);
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+    }
+}

Common/UIControls/CoolButtonCtrl.cs

@@ -0,0 +1,231 @@
+using System;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using System.Windows.Forms;
+
+namespace Common.UIControls
+{
+    public partial class CoolButtonCtrl : UserControl
+    {
+        private Color _buttonColor;
+        private Color _textColor;
+        private Color _focusColor;
+        private Color _borderColor;
+        private Color _highlightBorderColor;
+        private Color _highlightButtonColor;
+        private Font _buttonFont;
+        private string _buttonText;
+        private bool _mouseOver;
+        private bool _mouseDown;
+
+        public delegate void ButtonClickedArgs(object sender);
+
+        public event ButtonClickedArgs ButtonClicked;
+
+        public Color FocusColor
+        {
+            get { return _focusColor; }
+            set
+            {
+                _focusColor = value;
+                Refresh();
+            }
+        }
+
+        public Color TextColor
+        {
+            get { return _textColor; }
+            set
+            {
+                _textColor = value;
+                Refresh();
+            }
+        }
+
+        public Color HighlightBorderColor
+        {
+            get { return _highlightBorderColor; }
+            set
+            {
+                _highlightBorderColor = value;
+                Refresh();
+            }
+        }
+
+        public Color HighlightButtonColor
+        {
+            get { return _highlightButtonColor; }
+            set
+            {
+                _highlightButtonColor = value;
+                Refresh();
+            }
+        }
+
+        public string ButtonText
+        {
+            get { return _buttonText; }
+            set
+            {
+                _buttonText = value;
+                Refresh();
+            }
+        }
+
+        public Font ButtonFont
+        {
+            get { return _buttonFont; }
+            set
+            {
+                _buttonFont = value;
+                Refresh();
+            }
+        }
+
+        public Color BorderColor
+        {
+            get { return _borderColor; }
+            set
+            {
+                _borderColor = value;
+                Refresh();
+            }
+        }
+
+        public Color ButtonColor
+        {
+            get { return _buttonColor; }
+            set
+            {
+                _buttonColor = value;
+                Refresh();
+            }
+        }
+
+        public CoolButtonCtrl()
+        {
+            InitializeComponent();
+
+            _buttonColor = Color.FromArgb(243, 243, 243);
+            _borderColor = Color.FromArgb(220, 220, 220);
+            _highlightBorderColor = Color.FromArgb(198, 198, 198);
+            _highlightButtonColor = Color.FromArgb(246, 246, 246);
+            _focusColor = Color.FromArgb(77, 144, 254);
+            _buttonFont = new Font("Arial", 8, FontStyle.Bold);
+            _buttonText = "button";
+            _textColor = Color.Black;
+
+            _mouseOver = false;
+            _mouseDown = false;
+
+            LostFocus += CoolButtonFocus;
+            GotFocus += CoolButtonFocus;
+        }
+
+        void CoolButtonFocus(object sender, EventArgs e)
+        {
+            Refresh();
+        }
+
+        private void CoolButtonLoad(object sender, EventArgs e)
+        {
+
+        }
+
+        private void CoolButtonPaint(object sender, PaintEventArgs e)
+        {
+            var bmp = new Bitmap(ClientSize.Width, ClientSize.Height);
+            Graphics g = Graphics.FromImage(bmp);
+
+            if (!_mouseOver)
+            {
+                g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;
+                GraphicsPath path = RoundedRectangle.Create(0, 0, ClientSize.Width - 4, ClientSize.Height - 4);
+                SizeF fontSize = g.MeasureString(_buttonText, _buttonFont);
+                int horWidth = ((ClientSize.Width - 4 - (int)fontSize.Width) / 2);
+                int verHeight = ((ClientSize.Height - 4 - (int)fontSize.Height) / 2);
+
+                g.FillPath(new SolidBrush(_buttonColor), path);
+                g.DrawPath(Focused ? new Pen(_focusColor) : new Pen(_borderColor), path);
+                g.DrawString(_buttonText, _buttonFont, new SolidBrush(_textColor), horWidth, verHeight);
+            }
+            else
+            {
+                g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;
+                GraphicsPath path = RoundedRectangle.Create(0, 0, ClientSize.Width - 4, ClientSize.Height - 4);
+                SizeF fontSize = g.MeasureString(_buttonText, _buttonFont);
+                int horWidth = ((ClientSize.Width - 4 - (int)fontSize.Width) / 2);
+                int verHeight = ((ClientSize.Height - 4 - (int)fontSize.Height) / 2);
+
+                g.FillPath(new SolidBrush(_highlightButtonColor), path);
+                g.DrawPath(ContainsFocus ? new Pen(_focusColor) : new Pen(_borderColor), path);
+                g.DrawString(_buttonText, _buttonFont, new SolidBrush(_textColor), horWidth, verHeight);
+
+                Color a1 = Color.FromArgb(255, 198, 198, 198);
+                Color a2 = Color.FromArgb(128, 198, 198, 198);
+                Color a3 = Color.FromArgb(64, 198, 198, 198);
+
+                var shadowBmp = new Bitmap(1, 3);
+                var shadowBmp2 = new Bitmap(3, 1);
+                shadowBmp.SetPixel(0, 0, a1);
+                shadowBmp.SetPixel(0, 1, a2);
+                shadowBmp.SetPixel(0, 2, a3);
+
+                shadowBmp2.SetPixel(0, 0, a1);
+                shadowBmp2.SetPixel(1, 0, a2);
+                shadowBmp2.SetPixel(2, 0, a3);
+
+                for (int z = 4; z < ClientSize.Width - 4; z++)
+                {
+                    g.DrawImage(shadowBmp, z, ClientSize.Height - 4, 1, 3);
+                }
+                for (int z = 4; z < ClientSize.Height - 4; z++)
+                {
+                    g.DrawImage(shadowBmp2, ClientSize.Width - 4, z, 3, 1);
+                }
+                g.DrawPath(Focused ? new Pen(_focusColor) : new Pen(_borderColor), path);
+            }
+
+            e.Graphics.DrawImage(bmp, 0, 0, ClientSize.Width, ClientSize.Height);
+            //bmp.Dispose();
+        }
+
+        private void CoolButtonMouseEnter(object sender, EventArgs e)
+        {
+            _mouseOver = true;
+            Refresh();
+        }
+
+        private void CoolButtonMouseLeave(object sender, EventArgs e)
+        {
+            _mouseOver = false;
+            _mouseDown = false;
+            Refresh();
+        }
+
+        private void CoolButtonSizeChanged(object sender, EventArgs e)
+        {
+            Refresh();
+        }
+
+        private void CoolButtonMouseDown(object sender, MouseEventArgs e)
+        {
+            if (e.Button == MouseButtons.Left)
+                _mouseDown = true;
+        }
+
+        private void CoolButtonMouseUp(object sender, MouseEventArgs e)
+        {
+            if (e.Button != MouseButtons.Left)
+                return;
+            if (_mouseDown)
+            {
+                if (ButtonClicked != null)
+                {
+                    ButtonClicked(this);
+                }
+            }
+            _mouseDown = false;
+        }
+    }
+}

Common/UIControls/CoolButtonCtrl.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Common/UIControls/ListViewEx.cs

@@ -0,0 +1,486 @@
+///
+/// Copyright (c) 2013-2020 Sensus Slovensko a.s.
+///
+using System;
+using System.Collections;
+using System.ComponentModel;
+using System.Drawing;
+using System.Data;
+using System.Windows.Forms;
+using System.Runtime.InteropServices;
+
+namespace Common.UIControls
+{
+	/// <summary>
+	/// Event Handler for SubItem events
+	/// </summary>
+	public delegate void SubItemEventHandler(object sender, SubItemEventArgs e);
+	/// <summary>
+	/// Event Handler for SubItemEndEditing events
+	/// </summary>
+	public delegate void SubItemEndEditingEventHandler(object sender, SubItemEndEditingEventArgs e);
+
+
+	///	<summary>
+	///	Inherited ListView to allow in-place editing of subitems
+	///	</summary>
+	public class ListViewEx	: System.Windows.Forms.ListView
+	{
+		#region Interop structs, imports and constants
+		/// <summary>
+		/// MessageHeader for WM_NOTIFY
+		/// </summary>
+		private struct NMHDR 
+		{ 
+#pragma warning disable
+			public IntPtr hwndFrom; 
+			public Int32  idFrom; 
+			public Int32  code;
+#pragma warning restore
+        }
+
+
+		[DllImport("user32.dll")]
+		private	static extern IntPtr SendMessage(IntPtr hWnd, int msg,	IntPtr wPar, IntPtr	lPar);
+		[DllImport("user32.dll", CharSet=CharSet.Ansi)]
+		private	static extern IntPtr SendMessage(IntPtr	hWnd, int msg, int len,	ref	int	[] order);
+
+		// ListView messages
+		private const int LVM_FIRST					= 0x1000;
+		private const int LVM_GETCOLUMNORDERARRAY	= (LVM_FIRST + 59);
+
+		// Windows Messages that will abort editing
+		private	const int WM_HSCROLL = 0x114;
+		private	const int WM_VSCROLL = 0x115;
+		private const int WM_SIZE	 = 0x05;
+		private const int WM_NOTIFY	 = 0x4E;
+
+		private const int HDN_FIRST = -300;
+		private const int HDN_BEGINDRAG = (HDN_FIRST-10);
+		private const int HDN_ITEMCHANGINGA = (HDN_FIRST-0);
+		private const int HDN_ITEMCHANGINGW = (HDN_FIRST-20);
+		#endregion
+
+		///	<summary>
+		///	Required designer variable.
+		///	</summary>
+		private	System.ComponentModel.Container	components = null;
+
+		public event SubItemEventHandler SubItemClicked;
+        public event SubItemEventHandler SubItemRightClicked;
+        public event SubItemEventHandler SubItemBeginEditing;
+		public event SubItemEndEditingEventHandler SubItemEndEditing;
+
+		public ListViewEx()
+		{
+			// This	call is	required by	the	Windows.Forms Form Designer.
+			InitializeComponent();
+
+			base.FullRowSelect = true;
+			base.View = View.Details;
+			base.AllowColumnReorder = true;
+		}
+
+		///	<summary>
+		///	Clean up any resources being used.
+		///	</summary>
+		protected override void	Dispose( bool disposing	)
+		{
+			if(	disposing )
+			{
+				if(	components != null )
+					components.Dispose();
+			}
+			base.Dispose( disposing	);
+		}
+
+		#region Component	Designer generated code
+		///	<summary>
+		///	Required method	for	Designer support - do not modify 
+		///	the	contents of	this method	with the code editor.
+		///	</summary>
+		private	void InitializeComponent()
+		{
+			components = new System.ComponentModel.Container();
+		}
+	  #endregion
+
+		private bool _doubleClickActivation = false;
+		/// <summary>
+		/// Is a double click required to start editing a cell?
+		/// </summary>
+		public bool DoubleClickActivation
+		{
+			get {  return _doubleClickActivation; }
+			set { _doubleClickActivation = value; }    
+		}
+
+
+		/// <summary>
+		/// Retrieve the order in which columns appear
+		/// </summary>
+		/// <returns>Current display order of column indices</returns>
+		public int[] GetColumnOrder()
+		{
+			IntPtr lPar	= Marshal.AllocHGlobal(Marshal.SizeOf(typeof(int)) * Columns.Count);
+
+			IntPtr res = SendMessage(Handle, LVM_GETCOLUMNORDERARRAY, new IntPtr(Columns.Count), lPar);
+			if (res.ToInt32() == 0)	// Something went wrong
+			{
+				Marshal.FreeHGlobal(lPar);
+				return null;
+			}
+
+			int	[] order = new int[Columns.Count];
+			Marshal.Copy(lPar, order, 0, Columns.Count);
+
+			Marshal.FreeHGlobal(lPar);
+
+			return order;
+		}
+
+
+		/// <summary>
+		/// Find ListViewItem and SubItem Index at position (x,y)
+		/// </summary>
+		/// <param name="x">relative to ListView</param>
+		/// <param name="y">relative to ListView</param>
+		/// <param name="item">Item at position (x,y)</param>
+		/// <returns>SubItem index</returns>
+		public int GetSubItemAt(int x, int y, out ListViewItem item)
+		{
+			item = this.GetItemAt(x, y);
+		
+			if (item !=	null)
+			{
+				int[] order = GetColumnOrder();
+				Rectangle lviBounds;
+				int	subItemX;
+
+				lviBounds =	item.GetBounds(ItemBoundsPortion.Entire);
+				subItemX = lviBounds.Left;
+				for (int i=0; i<order.Length; i++)
+				{
+					ColumnHeader h = this.Columns[order[i]];
+					if (x <	subItemX+h.Width)
+					{
+						return h.Index;
+					}
+					subItemX += h.Width;
+				}
+			}
+			
+			return -1;
+		}
+
+
+		/// <summary>
+		/// Get bounds for a SubItem
+		/// </summary>
+		/// <param name="Item">Target ListViewItem</param>
+		/// <param name="SubItem">Target SubItem index</param>
+		/// <returns>Bounds of SubItem (relative to ListView)</returns>
+		public Rectangle GetSubItemBounds(ListViewItem Item, int SubItem)
+		{
+			int[] order = GetColumnOrder();
+
+			Rectangle subItemRect = Rectangle.Empty;
+			if (SubItem >= order.Length)
+				throw new IndexOutOfRangeException("SubItem "+SubItem+" out of range");
+
+			if (Item == null)
+				throw new ArgumentNullException("Item");
+			
+			Rectangle lviBounds = Item.GetBounds(ItemBoundsPortion.Entire);
+			int	subItemX = lviBounds.Left;
+
+			ColumnHeader col;
+			int i;
+			for (i=0; i<order.Length; i++)
+			{
+				col = this.Columns[order[i]];
+				if (col.Index == SubItem)
+					break;
+				subItemX += col.Width;
+			} 
+			subItemRect	= new Rectangle(subItemX, lviBounds.Top, this.Columns[order[i]].Width, lviBounds.Height);
+			return subItemRect;
+		}
+
+
+		protected override void	WndProc(ref	Message	msg)
+		{
+			switch (msg.Msg)
+			{
+				// Look	for	WM_VSCROLL,WM_HSCROLL or WM_SIZE messages.
+				case WM_VSCROLL:
+				case WM_HSCROLL:
+				case WM_SIZE:
+					EndEditing(false);
+					break;
+				case WM_NOTIFY:
+					// Look for WM_NOTIFY of events that might also change the
+					// editor's position/size: Column reordering or resizing
+					NMHDR h = (NMHDR)Marshal.PtrToStructure(msg.LParam, typeof(NMHDR));
+					if (h.code == HDN_BEGINDRAG ||
+						h.code == HDN_ITEMCHANGINGA ||
+						h.code == HDN_ITEMCHANGINGW)
+						EndEditing(false);
+					break;
+			}
+
+			base.WndProc(ref msg);
+		}
+
+
+		#region Initialize editing depending of DoubleClickActivation property
+		protected override void OnMouseUp(System.Windows.Forms.MouseEventArgs e)
+		{
+			base.OnMouseUp(e);
+
+            MouseEventArgs me = (MouseEventArgs)e;
+            if (me.Button == MouseButtons.Right)
+            {
+                /// Right mouse button click function
+                RightClickFunctionSubitemAt(new Point(e.X, e.Y));
+            }
+            else
+            {
+                /// Normal function (=edit item)
+                if (DoubleClickActivation)
+                {
+                    return;
+                }
+
+                EditSubitemAt(new Point(e.X, e.Y));
+            }
+		}
+		
+		protected override void OnDoubleClick(EventArgs e)
+		{
+			base.OnDoubleClick (e);
+
+			if (!DoubleClickActivation)
+			{
+				return;
+			} 
+
+			Point pt = this.PointToClient(Cursor.Position);
+		
+			EditSubitemAt(pt);
+		}
+
+		///<summary>
+		/// Fire SubItemClicked
+		///</summary>
+		///<param name="p">Point of click/doubleclick</param>
+		private void EditSubitemAt(Point p)
+		{
+			ListViewItem item;
+			int idx = GetSubItemAt(p.X, p.Y, out item);
+			if (idx >= 0)
+			{
+				OnSubItemClicked(new SubItemEventArgs(item, idx));
+			}
+		}
+
+        ///<summary>
+        /// Fire SubItemRightClicked
+        ///</summary>
+        ///<param name="p">Point of click/doubleclick</param>
+        private void RightClickFunctionSubitemAt(Point p)
+        {
+            ListViewItem item;
+            int idx = GetSubItemAt(p.X, p.Y, out item);
+            if (idx >= 0)
+            {
+                OnSubItemRightClicked(new SubItemEventArgs(item, idx));
+            }
+        }
+
+		#endregion
+
+		#region In-place editing functions
+		// The control performing the actual editing
+		private Control _editingControl;
+		// The LVI being edited
+		private ListViewItem _editItem;
+		// The SubItem being edited
+		private int _editSubItem;
+
+		protected void OnSubItemBeginEditing(SubItemEventArgs e)
+		{
+			if (SubItemBeginEditing != null) SubItemBeginEditing(this, e);
+		}
+
+		protected void OnSubItemEndEditing(SubItemEndEditingEventArgs e)
+		{
+			if (SubItemEndEditing != null) SubItemEndEditing(this, e);
+		}
+
+		protected void OnSubItemClicked(SubItemEventArgs e)
+		{
+			if (SubItemClicked != null) SubItemClicked(this, e);
+		}
+
+        protected void OnSubItemRightClicked(SubItemEventArgs e)
+        {
+            if (SubItemRightClicked != null) SubItemRightClicked(this, e);
+        }
+
+
+		/// <summary>
+		/// Begin in-place editing of given cell
+		/// </summary>
+		/// <param name="c">Control used as cell editor</param>
+		/// <param name="Item">ListViewItem to edit</param>
+		/// <param name="SubItem">SubItem index to edit</param>
+		public void StartEditing(Control c, ListViewItem Item, int SubItem)
+		{
+			OnSubItemBeginEditing(new SubItemEventArgs(Item, SubItem));
+
+			Rectangle rcSubItem = GetSubItemBounds(Item, SubItem);
+
+			if (rcSubItem.X < 0)
+			{
+				// Left edge of SubItem not visible - adjust rectangle position and width
+				rcSubItem.Width += rcSubItem.X;
+				rcSubItem.X=0;
+			}
+			if (rcSubItem.X+rcSubItem.Width > this.Width)
+			{
+				// Right edge of SubItem not visible - adjust rectangle width
+				rcSubItem.Width = this.Width-rcSubItem.Left;
+			}
+
+			// Subitem bounds are relative to the location of the ListView!
+			rcSubItem.Offset(Left, Top);
+
+			// In case the editing control and the listview are on different parents,
+			// account for different origins
+			Point origin = new Point(0,0);
+			Point lvOrigin  = this.Parent.PointToScreen(origin);
+			Point ctlOrigin  = c.Parent.PointToScreen(origin);
+
+			rcSubItem.Offset(lvOrigin.X-ctlOrigin.X, lvOrigin.Y-ctlOrigin.Y);
+
+			// Position and show editor
+			c.Bounds = rcSubItem;
+			c.Text = Item.SubItems[SubItem].Text;
+			c.Visible = true;
+			c.BringToFront();
+			c.Focus();
+
+			_editingControl = c;
+			_editingControl.Leave += new EventHandler(_editControl_Leave);
+			_editingControl.KeyPress += new KeyPressEventHandler(_editControl_KeyPress);
+
+			_editItem = Item;
+			_editSubItem = SubItem;
+		}
+
+
+		private void _editControl_Leave(object sender, EventArgs e)
+		{
+			// cell editor losing focus
+			EndEditing(true);
+		}
+
+		private void _editControl_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
+		{
+			switch (e.KeyChar)
+			{
+				case (char)(int)Keys.Escape:
+				{
+					EndEditing(false);
+					break;
+				}
+
+				case (char)(int)Keys.Enter:
+				{  
+					EndEditing(true);
+					break;
+				}
+			}
+		}
+
+		/// <summary>
+		/// Accept or discard current value of cell editor control
+		/// </summary>
+		/// <param name="AcceptChanges">Use the _editingControl's Text as new SubItem text or discard changes?</param>
+		public void EndEditing(bool AcceptChanges)
+		{
+			if (_editingControl == null)
+				return;
+
+			SubItemEndEditingEventArgs e = new SubItemEndEditingEventArgs(
+				_editItem,		// The item being edited
+				_editSubItem,	// The subitem index being edited
+				AcceptChanges ?
+					_editingControl.Text :	// Use editControl text if changes are accepted
+					_editItem.SubItems[_editSubItem].Text,	// or the original subitem's text, if changes are discarded
+				!AcceptChanges	// Cancel?
+			);
+
+			OnSubItemEndEditing(e);
+
+			_editItem.SubItems[_editSubItem].Text = e.DisplayText;
+
+			_editingControl.Leave -= new EventHandler(_editControl_Leave);
+			_editingControl.KeyPress -= new KeyPressEventHandler(_editControl_KeyPress);
+
+			_editingControl.Visible = false;
+
+			_editingControl = null;
+			_editItem = null;
+			_editSubItem = -1;
+		}
+		#endregion
+	}
+
+	
+	/// <summary>
+	/// Event Args for SubItemClicked event
+	/// </summary>
+	public class SubItemEventArgs : EventArgs
+	{
+        int subItem = -1;     /// Sub-item index
+        ListViewItem item = null;
+
+        public int SubItem { get { return subItem; } }
+        public ListViewItem Item { get { return item; } }
+
+        public SubItemEventArgs(ListViewItem item, int subItem)
+		{
+			this.subItem = subItem;
+			this.item = item;
+		}
+	}
+
+
+	/// <summary>
+	/// Event Args for SubItemEndEditingClicked event
+	/// </summary>
+	public class SubItemEndEditingEventArgs : SubItemEventArgs
+	{
+		string displayText = string.Empty;
+		bool cancel = true;
+
+		public SubItemEndEditingEventArgs(ListViewItem item, int subItem, string displayText, bool cancel) :
+			base(item, subItem)
+		{
+			this.displayText = displayText;
+			this.cancel = cancel;
+		}
+		public string DisplayText
+		{
+			get { return displayText; }
+			set { displayText = value; }
+		}
+		public bool Cancel
+		{
+			get { return cancel; }
+			set { cancel = value; }
+		}
+	}
+}

Common/UIControls/ListViewEx.resx

@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<root>
+	<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+		<xsd:element name="root" msdata:IsDataSet="true">
+			<xsd:complexType>
+				<xsd:choice maxOccurs="unbounded">
+					<xsd:element name="data">
+						<xsd:complexType>
+							<xsd:sequence>
+								<xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+								<xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+							</xsd:sequence>
+							<xsd:attribute name="name" type="xsd:string" />
+							<xsd:attribute name="type" type="xsd:string" />
+							<xsd:attribute name="mimetype" type="xsd:string" />
+						</xsd:complexType>
+					</xsd:element>
+					<xsd:element name="resheader">
+						<xsd:complexType>
+							<xsd:sequence>
+								<xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+							</xsd:sequence>
+							<xsd:attribute name="name" type="xsd:string" use="required" />
+						</xsd:complexType>
+					</xsd:element>
+				</xsd:choice>
+			</xsd:complexType>
+		</xsd:element>
+	</xsd:schema>
+	<resheader name="ResMimeType">
+		<value>text/microsoft-resx</value>
+	</resheader>
+	<resheader name="Version">
+		<value>1.0.0.0</value>
+	</resheader>
+	<resheader name="Reader">
+		<value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=1.0.3102.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+	</resheader>
+	<resheader name="Writer">
+		<value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=1.0.3102.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+	</resheader>
+</root>

Common/UIControls/ListViewExtensions.cs

@@ -0,0 +1,107 @@
+///
+/// Copyright (c) 2019-2020 Sensus Slovensko a.s.
+///
+using System;
+using System.ComponentModel;
+using System.Runtime.InteropServices;
+using System.Windows.Forms;
+
+namespace Common.UIControls
+{
+    [EditorBrowsable(EditorBrowsableState.Never)]
+    public static class ListViewExtensions
+    {
+        [StructLayout(LayoutKind.Sequential)]
+        public struct HDITEM
+        {
+            public Mask mask;
+            public int cxy;
+            [MarshalAs(UnmanagedType.LPTStr)]
+            public string pszText;
+            public IntPtr hbm;
+            public int cchTextMax;
+            public Format fmt;
+            public IntPtr lParam;
+            // _WIN32_IE >= 0x0300 
+            public int iImage;
+            public int iOrder;
+            // _WIN32_IE >= 0x0500
+            public uint type;
+            public IntPtr pvFilter;
+            // _WIN32_WINNT >= 0x0600
+            public uint state;
+
+            [Flags]
+            public enum Mask
+            {
+                Format = 0x4,       // HDI_FORMAT
+            };
+
+            [Flags]
+            public enum Format
+            {
+                SortDown = 0x200,   // HDF_SORTDOWN
+                SortUp = 0x400,     // HDF_SORTUP
+            };
+        };
+
+        public const int LVM_FIRST = 0x1000;
+        public const int LVM_GETHEADER = LVM_FIRST + 31;
+
+        public const int HDM_FIRST = 0x1200;
+        public const int HDM_GETITEM = HDM_FIRST + 11;
+        public const int HDM_SETITEM = HDM_FIRST + 12;
+
+        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
+        public static extern IntPtr SendMessage(IntPtr hWnd, UInt32 msg, IntPtr wParam, IntPtr lParam);
+
+        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
+        public static extern IntPtr SendMessage(IntPtr hWnd, UInt32 msg, IntPtr wParam, ref HDITEM lParam);
+
+        public static void SetSortIcon(this ListViewEx listViewControl, int columnIndex, SortOrder order)
+        {
+            IntPtr columnHeader = SendMessage(listViewControl.Handle, LVM_GETHEADER, IntPtr.Zero, IntPtr.Zero);
+            for (int columnNumber = 0; columnNumber <= listViewControl.Columns.Count - 1; columnNumber++)
+            {
+                var columnPtr = new IntPtr(columnNumber);
+                var item = new HDITEM
+                {
+                    mask = HDITEM.Mask.Format
+                };
+
+                if (SendMessage(columnHeader, HDM_GETITEM, columnPtr, ref item) == IntPtr.Zero)
+                {
+                    throw new Win32Exception();
+                }
+
+                if (order != SortOrder.None && columnNumber == columnIndex)
+                {
+                    switch (order)
+                    {
+                        case SortOrder.Ascending:
+                            item.fmt &= ~HDITEM.Format.SortDown;
+                            item.fmt |= HDITEM.Format.SortUp;
+                            break;
+
+                        case SortOrder.Descending:
+                            item.fmt &= ~HDITEM.Format.SortUp;
+                            item.fmt |= HDITEM.Format.SortDown;
+                            break;
+
+                        default:
+                            break;
+                    }
+                }
+                else
+                {
+                    item.fmt &= ~HDITEM.Format.SortDown & ~HDITEM.Format.SortUp;
+                }
+
+                if (SendMessage(columnHeader, HDM_SETITEM, columnPtr, ref item) == IntPtr.Zero)
+                {
+                    throw new Win32Exception();
+                }
+            }
+        }
+    }
+}

Common/UIControls/LviDateTimeColumnComparer.cs

@@ -0,0 +1,46 @@
+///
+/// Copyright (c) 2019-2020 Sensus Slovensko a.s.
+///
+using System;
+using System.Collections;
+using System.Windows.Forms;
+
+namespace Common.UIControls
+{
+    public class LviDateTimeColumnComparer : IComparer
+    {
+        int column;
+        SortOrder order;
+
+        public LviDateTimeColumnComparer()
+        {
+            column = 0;
+            order = SortOrder.Ascending;
+        }
+
+        public LviDateTimeColumnComparer(int column, SortOrder order)
+        {
+            this.column = column;
+            this.order = order;
+        }
+
+        public int Compare(object x, object y)
+        {
+            DateTime valX = DateTime.Parse(((ListViewItem)x).SubItems[column].Text);
+            DateTime valY = DateTime.Parse(((ListViewItem)y).SubItems[column].Text);
+
+            if (valX == valY)
+            {
+                return 0;
+            }
+            else if (order == SortOrder.Ascending)
+            {
+                return (valX > valY) ? 1 : -1;
+            }
+            else
+            {
+                return (valY > valX) ? 1 : -1;
+            }
+        }
+    }
+}

Common/UIControls/LviIntColumnComparer.cs

@@ -0,0 +1,34 @@
+///
+/// Copyright (c) 2019-2020 Sensus Slovensko a.s.
+///
+using System;
+using System.Collections;
+using System.Windows.Forms;
+
+namespace Common.UIControls
+{
+    public class LviIntColumnComparer : IComparer
+    {
+        int column;
+        SortOrder order;
+
+        public LviIntColumnComparer()
+        {
+            column = 0;
+            order = SortOrder.Ascending;
+        }
+
+        public LviIntColumnComparer(int column, SortOrder order)
+        {
+            this.column = column;
+            this.order = order;
+        }
+
+        public int Compare(object x, object y)
+        {
+            int valX = int.Parse(((ListViewItem)x).SubItems[column].Text);
+            int valY = int.Parse(((ListViewItem)y).SubItems[column].Text);
+            return (order == SortOrder.Descending) ? (valY - valX) : (valX - valY);
+        }
+    }
+}

Common/UIControls/LviTextColumnComparer.cs

@@ -0,0 +1,34 @@
+///
+/// Copyright (c) 2019-2020 Sensus Slovensko a.s.
+///
+using System;
+using System.Collections;
+using System.Windows.Forms;
+
+namespace Common.UIControls
+{
+    public class LviTextColumnComparer : IComparer
+    {
+        private int column;
+        SortOrder order;
+
+        public LviTextColumnComparer()
+        {
+            column = 0;
+            order = SortOrder.Ascending;
+        }
+
+        public LviTextColumnComparer(int column, SortOrder order)
+        {
+            this.column = column;
+            this.order = order;
+        }
+
+        public int Compare(object x, object y)
+        {
+            string txtX = ((ListViewItem)x).SubItems[column].Text;
+            string txtY = ((ListViewItem)y).SubItems[column].Text;
+            return (order == SortOrder.Descending) ? String.Compare(txtY, txtX) : String.Compare(txtX, txtY);
+        }
+    }
+}

Common/UIControls/RoundedRectangle.cs

@@ -0,0 +1,107 @@
+using System;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+
+namespace Common.UIControls
+{
+    public abstract class RoundedRectangle
+    {
+        [Flags]
+        public enum RectangleCorners
+        {
+            None = 0, TopLeft = 1, TopRight = 2, BottomLeft = 4, BottomRight = 8,
+            All = TopLeft | TopRight | BottomLeft | BottomRight
+        }
+
+        public static GraphicsPath Create(int x, int y, int width, int height,
+                                          int radius, RectangleCorners corners)
+        {
+            int xw = x + width;
+            int yh = y + height;
+            int xwr = xw - radius;
+            int yhr = yh - radius;
+            int xr = x + radius;
+            int yr = y + radius;
+            int r2 = radius * 2;
+            int xwr2 = xw - r2;
+            int yhr2 = yh - r2;
+
+            var p = new GraphicsPath();
+            p.StartFigure();
+
+            //Top Left Corner
+            if ((RectangleCorners.TopLeft & corners) == RectangleCorners.TopLeft)
+            {
+                p.AddArc(x, y, r2, r2, 180, 90);
+            }
+            else
+            {
+                p.AddLine(x, yr, x, y);
+                p.AddLine(x, y, xr, y);
+            }
+
+            //Top Edge
+            p.AddLine(xr, y, xwr, y);
+
+            //Top Right Corner
+            if ((RectangleCorners.TopRight & corners) == RectangleCorners.TopRight)
+            {
+                p.AddArc(xwr2, y, r2, r2, 270, 90);
+            }
+            else
+            {
+                p.AddLine(xwr, y, xw, y);
+                p.AddLine(xw, y, xw, yr);
+            }
+
+            //Right Edge
+            p.AddLine(xw, yr, xw, yhr);
+
+            //Bottom Right Corner
+            if ((RectangleCorners.BottomRight & corners) == RectangleCorners.BottomRight)
+            {
+                p.AddArc(xwr2, yhr2, r2, r2, 0, 90);
+            }
+            else
+            {
+                p.AddLine(xw, yhr, xw, yh);
+                p.AddLine(xw, yh, xwr, yh);
+            }
+
+            //Bottom Edge
+            p.AddLine(xwr, yh, xr, yh);
+
+            //Bottom Left Corner
+            if ((RectangleCorners.BottomLeft & corners) == RectangleCorners.BottomLeft)
+            {
+                p.AddArc(x, yhr2, r2, r2, 90, 90);
+            }
+            else
+            {
+                p.AddLine(xr, yh, x, yh);
+                p.AddLine(x, yh, x, yhr);
+            }
+
+            //Left Edge
+            p.AddLine(x, yhr, x, yr);
+
+            p.CloseFigure();
+            return p;
+        }
+
+        public static GraphicsPath Create(Rectangle rect, int radius, RectangleCorners c)
+        { return Create(rect.X, rect.Y, rect.Width, rect.Height, radius, c); }
+
+        public static GraphicsPath Create(int x, int y, int width, int height, int radius)
+        { return Create(x, y, width, height, radius, RectangleCorners.All); }
+
+        public static GraphicsPath Create(Rectangle rect, int radius)
+        { return Create(rect.X, rect.Y, rect.Width, rect.Height, radius); }
+
+        public static GraphicsPath Create(int x, int y, int width, int height)
+        { return Create(x, y, width, height, 5); }
+
+        public static GraphicsPath Create(Rectangle rect)
+        { return Create(rect.X, rect.Y, rect.Width, rect.Height); }
+    }
+}

Common/Utils.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Common
+{
+    public class Utils
+    {
+    }
+}

Config/CalendarEvent/ICalendarEvent.cs

@@ -0,0 +1,46 @@
+using System;
+using System.Drawing;
+
+namespace Config.CalendarEvent
+{
+    /// <summary>
+    /// An interface for creating event types
+    /// </summary>
+    public interface ICalendarEvent
+    {
+        DateTime Date { get; set; }                 /// The Date that the event occurs
+        Frequency Frequency { get; set; }           /// A value indicating how often the event occurs
+        bool AllDay { get; set; }                   /// True if the time component of DateTime value can be ignored
+        bool TriggerOnExactDayOnly { get; set; }    /// If this is a recurring event, set this to true to make the event show up only from the day specified forward
+        string Source { get; set; }                 /// Source of this calendar event (becomes the source of the triggered event)
+        string Title { get; set; }                  /// The name of the event (becomes the text of the triggered event)
+        AutoAction AutoAction { get; set; }         /// Automated action to be done or event to be triggered (triggered event Severity)
+        string Parameters { get; set; }             /// Automated action parameters (e.g. name of a procedure to start)
+        int Rank { get; set; }                      /// The ranking of the event that determines the order in which it is displayed on a particular day
+        bool Hidden { get; set; }                   /// True if the event is hidden/invisible, otherwise false
+        bool ReadOnly { get; set; }                 /// True if the event details cannot be modified
+        int BackColor { get; set; }                 /// The color that the event show up in on the calendar
+        int TextColor { get; set; }                 /// The text color of the event
+        bool TooltipEnabled { get; set; }           /// True if a tooltip should be displayed when hovering over the event
+
+        /// <summary>
+        /// Set this to a custom function that will automatically determine if the event should be rendered on a given day.
+        /// This is only executed if <see cref="Frequency"/> is set to custom.
+        /// </summary>
+        CustomRecurringFrequenciesHandler CustomRecurringFunction { get; set; }
+
+        /// <summary>
+        /// A function for cloning an event instance
+        /// </summary>
+        /// <returns>A cloned <see cref="ICalendarEvent"/></returns>
+        ICalendarEvent Clone();
+    }
+
+    /// <summary>
+    /// A delegate for creating custom recurring frequencies
+    /// </summary>
+    /// <param name="evnt">The <see cref="ICalendarEvent"/> in question</param>
+    /// <param name="day">The day in question</param>
+    /// <returns>Should return a boolean value that indicates if the event should be rendered on the day passed in</returns>
+    public delegate bool CustomRecurringFrequenciesHandler(ICalendarEvent evnt, DateTime day);
+}

Config/CalendarEvent/Utils.cs

@@ -0,0 +1,226 @@
+///
+/// Copyright (c) 2020 Sensus Slovensko a.s.
+///
+using System;
+using Config.Resources;
+
+namespace Config.CalendarEvent
+{
+    /// <summary>
+    /// Enumeration of calendar event actions
+    /// </summary>
+    public enum AutoAction
+    {
+        Undefined,
+        None,               /// No action at all
+        Notification,       /// Trigger a notification event
+        Warning,            /// Trigger a warning event
+        Error,              /// Trigger an error event and stop test bench function
+        FatalErr,           /// Trigger a fatal error and stop test bench function
+        InvokeBeforeCycle,  /// Invoke a maintenance procedure before a cycle after entering order number
+        InvokeInsideCycle,  /// Invoke conditional tests inside a cycle (if any)
+        InvokeAfterCycle,   /// Invoke a maintenance procedure after a cycle after saving results
+        BackupData,
+        Count,
+    }
+
+
+    /// <summary>
+    /// Enumeration of built-in recurring event frequencies
+    /// </summary>
+    public enum Frequency
+    {
+        Undefined,
+        Once,               /// Indicates that the event is non recurring will occur only one time
+        Yearly,             /// Indicates that the event will occur once a year, on the month and day specified
+        Monthly,            /// Indicates that the event will occur every month
+        Weekly,             /// Indicates that the event will occur every week
+        EveryTuTh,          /// Indicates that the event will occur every Tuesday and Thursday
+        EveryMoWeFr,        /// Indicates that the event will occur every Mon, Wed and Fri
+        EveryWkday,         /// Indicates that the event will occur every week day (Mon - Fri)
+        Daily,              /// Indicates that the event will occur every day
+        EveryShift,
+        Custom,             /// Indicates that the recuring schedule of this event is unique
+        Count
+    }
+
+    public class Utils
+    {
+        public static string Action2String(AutoAction action)
+        {
+            return action.ToString();
+        }
+
+        public static AutoAction String2Action(string astr)
+        {
+            for (AutoAction a = AutoAction.None; a < AutoAction.Count; a++)
+            {
+                if (Action2String(a) == astr) return a;
+            }
+            return AutoAction.Undefined;
+        }
+
+        public static string Freq2String(Frequency f)
+        {
+            switch (f)
+            {
+                case Frequency.Custom:      return Strings.Custom;
+                case Frequency.Daily:       return Strings.Daily;
+                case Frequency.EveryMoWeFr: return Strings.Every_Mon_Wed_and_Fri;
+                case Frequency.EveryTuTh:   return Strings.Every_Tue_and_Thu;
+                case Frequency.EveryWkday:  return Strings.Every_Week_Day;
+                case Frequency.EveryShift:  return Strings.Every_shift;
+                case Frequency.Monthly:     return Strings.Every_Month;
+                case Frequency.Once:        return Strings.Once;
+                case Frequency.Weekly:      return Strings.Every_week;
+                case Frequency.Yearly:      return Strings.Every_year;
+                default:                    return string.Empty;
+            }
+        }
+
+        public static Frequency String2Freq(string fstr)
+        {
+            for (Frequency f = Frequency.Once; f < Frequency.Count; f++)
+            {
+                if (Freq2String(f) == fstr) return f;
+            }
+            return Frequency.Undefined;
+        }
+
+
+        /// <summary>
+        /// Determine whether an event date matches given day and time (dt)
+        /// (whether an event needs to be rendered on a specific day).
+        /// </summary>
+        /// <param name="evnt">Calendar event</param>
+        /// <param name="dt">Day and time</param>
+        /// <returns>true = needs to be rendered</returns>
+        public static bool DayMatchesExactly(ICalendarEvent evnt, DateTime dt)
+        {
+            DayOfWeek dow = dt.DayOfWeek;
+
+            switch (evnt.Frequency)
+            {
+                case Frequency.EveryShift:  return (dow == DayOfWeek.Sunday && evnt.Date.Hour >= 22) ||
+                                                   dow == DayOfWeek.Monday ||
+                                                   dow == DayOfWeek.Tuesday ||
+                                                   dow == DayOfWeek.Wednesday ||
+                                                   dow == DayOfWeek.Thursday ||
+                                                   (dow == DayOfWeek.Friday && evnt.Date.Hour < 22);
+
+                case Frequency.Daily:       return true;
+                case Frequency.EveryMoWeFr: return (dow == DayOfWeek.Monday) || (dow == DayOfWeek.Wednesday) || (dow == DayOfWeek.Friday);
+                case Frequency.EveryTuTh:   return (dow == DayOfWeek.Tuesday) || (dow == DayOfWeek.Thursday);
+                case Frequency.EveryWkday:  return (dow != DayOfWeek.Sunday) && (dow != DayOfWeek.Saturday);
+                case Frequency.Weekly:      return evnt.Date.DayOfWeek == dow;
+                case Frequency.Monthly:     return evnt.Date.Day == dt.Day;
+                case Frequency.Yearly:      return evnt.Date.Month == dt.Month && evnt.Date.Day == dt.Day;
+                case Frequency.Once:        return evnt.Date.Year == dt.Year && evnt.Date.Month == dt.Month && evnt.Date.Day == dt.Day;
+                case Frequency.Custom:      return (evnt.CustomRecurringFunction != null) && evnt.CustomRecurringFunction(evnt, dt);
+                default:                    return false;
+            }
+        }
+
+
+        public static bool IsCalendarEventTrigerred(ICalendarEvent evnt, DateTime currentDate)
+        {
+            DateTime evntDT = evnt.AllDay
+                            ? new DateTime(evnt.Date.Year, evnt.Date.Month, evnt.Date.Day, 0, 0, 0)
+                            : evnt.Date;
+
+            if (evnt.Frequency == Frequency.EveryShift)
+            {
+                DateTime dt1 = evntDT;
+                DateTime dt2 = evntDT + new TimeSpan(8, 0, 0);
+                DateTime dt3 = evntDT + new TimeSpan(16, 0, 0);
+                return (currentDate >= dt1) || (currentDate >= dt1) || (currentDate >= dt3);
+            }
+            else if (!evnt.TriggerOnExactDayOnly)
+            {
+                /// Trigger after event expires
+                return (currentDate >= evntDT);
+            }
+            else
+            {
+                /// Trigger event on exact date only
+                return (currentDate >= evntDT) && DayMatchesExactly(evnt, currentDate);
+            }
+        }
+
+
+        /// <summary>
+        /// Called to update event.Date after an event was trigerred and a required action was done.
+        /// </summary>
+        /// <param name="evnt">Calendar event</param>
+        /// <param name="currentDate">Current date and time which triggered the event</param>
+        /// <returns>true when event.Date was updated</returns>
+        public static bool UpdateRecurringDate(ICalendarEvent evnt, DateTime currentDate)
+        {
+            switch (evnt.Frequency)
+            {
+                case Frequency.Yearly:
+                    do {
+                        evnt.Date = evnt.Date.AddYears(1);
+                    }
+                    while (evnt.Date <= currentDate);
+                    return true;
+
+                case Frequency.Monthly:
+                    do {
+                        evnt.Date = evnt.Date.AddMonths(1);
+                    }
+                    while (evnt.Date <= currentDate);
+                    return true;
+
+                case Frequency.Weekly:
+                    do {
+                        evnt.Date += new TimeSpan(7, 0, 0, 0);  /// add one week
+                    }
+                    while (evnt.Date <= currentDate);
+                    return true;
+
+                case Frequency.EveryTuTh:
+                    do {
+                        evnt.Date += new TimeSpan(1, 0, 0, 0);  /// add one day
+                    }
+                    while ((evnt.Date <= currentDate) || ((evnt.Date.DayOfWeek != DayOfWeek.Tuesday) &&
+                                                          (evnt.Date.DayOfWeek != DayOfWeek.Thursday)));
+                    return true;
+
+                case Frequency.EveryMoWeFr:
+                    do {
+                        evnt.Date += new TimeSpan(1, 0, 0, 0);  /// add one day
+                    }
+                    while ((evnt.Date <= currentDate) || ((currentDate.DayOfWeek != DayOfWeek.Monday) &&
+                                                          (currentDate.DayOfWeek != DayOfWeek.Wednesday) &&
+                                                          (currentDate.DayOfWeek != DayOfWeek.Friday)));
+                    return true;
+
+                case Frequency.EveryWkday:
+                    do {
+                        evnt.Date += new TimeSpan(1, 0, 0, 0);  /// add one day
+                    }
+                    while ((evnt.Date <= currentDate) || (currentDate.DayOfWeek == DayOfWeek.Saturday) || (currentDate.DayOfWeek == DayOfWeek.Sunday));
+                    return true;
+
+                case Frequency.Daily:
+                    do {
+                        evnt.Date += new TimeSpan(1, 0, 0, 0);  /// add one day
+                    }
+                    while (evnt.Date <= currentDate);
+                    return true;
+
+                case Frequency.EveryShift:
+                    do {
+                        evnt.Date += new TimeSpan(8, 0, 0);     /// add eight hours
+                    }
+                    while (evnt.Date <= currentDate);
+                    return true;
+
+                default:
+                    /// This is not a recurring calendar event, 'Date' was not updated
+                    return false;
+            }
+        }
+    }
+}

Config/Config.csproj

@@ -19,7 +19,7 @@
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>
     <OutputPath>bin\Debug\</OutputPath>
-    <DefineConstants>TRACE;DEBUG;MUNICH</DefineConstants>
+    <DefineConstants>TRACE;DEBUG;TURA_SPECIAL;IPERL;ORACLE_DB;LANG_SK</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <AllowUnsafeBlocks>false</AllowUnsafeBlocks>
@@ -30,7 +30,7 @@
     <DebugType>pdbonly</DebugType>
     <Optimize>true</Optimize>
     <OutputPath>bin\Release\</OutputPath>
-    <DefineConstants>TRACE;MUNICH</DefineConstants>
+    <DefineConstants>TRACE;TURA_SPECIAL;IPERL;ORACLE_DB;LANG_SK</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <Prefer32Bit>false</Prefer32Bit>
@@ -67,9 +67,11 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="CalendarEvent\ICalendarEvent.cs" />
     <Compile Include="Data.cs" />
     <Compile Include="DatabaseSettings.cs" />
     <Compile Include="Entities\BenchPath.cs" />
+    <Compile Include="Entities\CustomEvent.cs" />
     <Compile Include="Entities\Component.cs" />
     <Compile Include="Entities\ComponentProcedure.cs" />
     <Compile Include="Entities\ComponentTest.cs" />
@@ -95,12 +97,14 @@
     <Compile Include="Entities\User.cs" />
     <Compile Include="Entities\VirtualBenchSequence.cs" />
     <Compile Include="Entities\VirtualBenchStep.cs" />
+    <Compile Include="CalendarEvent\Utils.cs" />
     <Compile Include="FluentCommon.cs" />
     <Compile Include="Formulas.cs" />
     <Compile Include="Mappings\BenchPathMap.cs" />
     <Compile Include="Mappings\ComponentMap.cs" />
     <Compile Include="Mappings\ComponentProcedureMap.cs" />
     <Compile Include="Mappings\ComponentTestMap.cs" />
+    <Compile Include="Mappings\CustomEventMap.cs" />
     <Compile Include="Mappings\FeedingPathMap.cs" />
     <Compile Include="Mappings\GroupMap.cs" />
     <Compile Include="Mappings\HeatMetersPathMap.cs" />

Config/Data.cs

@@ -8,31 +8,43 @@ namespace Config
 		public const string AdminPassword = "staratura";
 		public const string SQLiteDbFName = "SQLite.db";
 
-#if MUNICH
+#if DN100 || BADGER_STREDNA_TRAT || BADGER_VELKA_TRAT || CEVAK_200
+		public const int WMsCount = 3;
+		public const int LineSize = 3;
+		public const int CompoundWMsCount = 1;
+		public const int HeatMetersCount = 0;
+        public const int MaxPartNr = 1;
+#elif MUNICH
 		public const int WMsCount = 3;
 		public const int LineSize = 3;
 		public const int CompoundWMsCount = 3;
 		public const int HeatMetersCount = 0;
         public const int MaxPartNr = 3;
-#elif DN100 || BADGER_STREDNA_TRAT || BADGER_VELKA_TRAT || CEVAK_200
-		public const int WMsCount = 3;
-		public const int LineSize = 3;
-		public const int CompoundWMsCount = 1;
-		public const int HeatMetersCount = 0;
-        public const int MaxPartNr = WMsCount / LineSize;
-#elif FUZHOU_300 || FUZHOU_150 || IZRAEL_200 || GENESIS || SLM_150 || PETERSBURG_200
+#elif MALTA_WSD25
 		public const int WMsCount = 6;
 		public const int LineSize = 6;
-		public const int CompoundWMsCount = 1;
+		public const int CompoundWMsCount = 0;
 		public const int HeatMetersCount = 0;
-        public const int MaxPartNr = 3;
+        public const int MaxPartNr = 1;
+#elif BADGER_MALA_TRAT || BERLIN || FUZHOU_150 || FUZHOU_300 || GELSENWASSER || GENESIS || IZRAEL_200 || PETERSBURG_200 || SENTEC || SLM_150 || TORINO_50 || TURA_SPECIAL
+        public const int WMsCount = 6;
+        public const int LineSize = 6;
+        public const int CompoundWMsCount = 1;
+        public const int HeatMetersCount = 0;
+        public const int MaxPartNr = 1;
 #elif PUCHONG_200
 		public const int WMsCount = 6;
 		public const int LineSize = 6;
 		public const int CompoundWMsCount = 3;
 		public const int HeatMetersCount = 0;
         public const int MaxPartNr = 3;
-#elif DEWA_300 || ROMA_200
+#elif RUM_MOB
+        public const int WMsCount = 8;
+		public const int LineSize = 8;
+		public const int CompoundWMsCount = 1;
+		public const int HeatMetersCount = 0;
+        public const int MaxPartNr = WMsCount / LineSize;
+#elif DEWA_300 || FUZHOU_100 || ROMA_200 || LUXEMBURG_40
         public const int WMsCount = 10;
         public const int LineSize = 10;
         public const int CompoundWMsCount = 1;
@@ -44,63 +56,33 @@ namespace Config
 		public const int CompoundWMsCount = 0;
 		public const int HeatMetersCount = 0;
         public const int MaxPartNr = WMsCount / LineSize;
-#elif IZRAEL_50
-		public const int WMsCount = 40;
-		public const int LineSize = 10;
-		public const int CompoundWMsCount = 0;
-		public const int HeatMetersCount = 0;
-        public const int MaxPartNr = WMsCount / LineSize;
-#elif FUZHOU_100
-		public const int WMsCount = 10;
-		public const int LineSize = 10;
+#elif SLM_END || WARSAW_END
+        public const int WMsCount = 10;
+		public const int LineSize = 5;
 		public const int CompoundWMsCount = 1;
 		public const int HeatMetersCount = 0;
-        public const int MaxPartNr = WMsCount / LineSize;
-#elif TORINO_50 || BADGER_MALA_TRAT || BERLIN
-		public const int WMsCount = 6;
-		public const int LineSize = 6;
+        public const int MaxPartNr = 4;
+#elif SLM_50
+		public const int WMsCount = 12;
+		public const int LineSize = 12;
 		public const int CompoundWMsCount = 1;
-		public const int HeatMetersCount = 0;
-        public const int MaxPartNr = 1;
-#elif TORUN_50 || CEVAK_40 || MURES_40 || FUZHOU_50 || PETERSBURG_50 || KEMPNO_50 || BAHRAIN_50 || KRAKOW_50 || JUZNA_AFRIKA_50 || IZRAEL_25 || ZAMBIA || ZODINO || FEWA_50 || FILIPINY_50 || ALZIR_25
+		public const int HeatMetersCount = 6;
+        public const int MaxPartNr = WMsCount / LineSize;
+#elif ALZIR_25 || BAHRAIN_50 || CEVAK_40 || FEWA_50 || FILIPINY_50 || FUZHOU_50 || HONGKONG_50 || IZRAEL_25 || JUZNA_AFRIKA_50 || KEMPNO_50 || KRAKOW_50 || MURES_40 || PETERSBURG_50 || TORUN_50 || ZAMBIA || ZODINO
         public const int WMsCount = 20;
 		public const int LineSize = 10;
 		public const int CompoundWMsCount = 1;
 		public const int HeatMetersCount = 0;
         public const int MaxPartNr = WMsCount / LineSize;
-#elif RUM_MOB
-        public const int WMsCount = 8;
-		public const int LineSize = 8;
-		public const int CompoundWMsCount = 1;
-		public const int HeatMetersCount = 0;
-        public const int MaxPartNr = WMsCount / LineSize;
 #elif TURA_IPERL || TURA_IPERL_NEW
 		public const int WMsCount = 40;
 		public const int LineSize = 20;
 		public const int CompoundWMsCount = 1;
 		public const int HeatMetersCount = 0;
         public const int MaxPartNr = WMsCount / LineSize;
-#elif TURA_SPECIAL || SENTEC
-        public const int WMsCount = 6;
-		public const int LineSize = 6;
-		public const int CompoundWMsCount = 1;
-		public const int HeatMetersCount = 0;
-        public const int MaxPartNr = WMsCount / LineSize;
-#elif SLM_50
-		public const int WMsCount = 12;
-		public const int LineSize = 12;
-		public const int CompoundWMsCount = 1;
-		public const int HeatMetersCount = 6;
-        public const int MaxPartNr = WMsCount / LineSize;
-#elif SLM_END || WARSAW_END
-        public const int WMsCount = 10;
-		public const int LineSize = 5;
-		public const int CompoundWMsCount = 1;
-		public const int HeatMetersCount = 0;
-        public const int MaxPartNr = 4;
-#elif MALTA_WSD25
-		public const int WMsCount = 6;
-		public const int LineSize = 6;
+#elif IZRAEL_50
+		public const int WMsCount = 40;
+		public const int LineSize = 10;
 		public const int CompoundWMsCount = 0;
 		public const int HeatMetersCount = 0;
         public const int MaxPartNr = WMsCount / LineSize;

Config/DatabaseSettings.cs

@@ -1,5 +1,5 @@
 ///
-/// Copyright (c) 2013-2017 Sensus Metering Systems
+/// Copyright (c) 2013-2020 Sensus Slovensko a.s.
 ///
 using System;
 using System.Text;
@@ -10,14 +10,15 @@ namespace Config
     /// <summary>
     /// Test bench database settings, contains bench name and settings od several databases
     /// </summary>
-    public class DatabaseSettings : ICloneable
+    public class DatabaseSettings : ICloneable, IComparable
     {
         // Public fields
         public string BenchName;
         public bool IsRealBench;
-        public Users.DBSettings ProceduresDBSettings;		/// Config database settings
+        public Users.DBSettings ProceduresDBSettings;	/// Configuration database settings
 		public Users.DBSettings WaterMetersDBSettings;	/// Results database settings
-		public Users.DBSettings UsersDBSettings;		    /// Users database settings
+        public Users.DBSettings EventsDBSettings;	    /// Events database settings
+        public Users.DBSettings UsersDBSettings;		/// Shared configuration database settings
 
         // Constructor
         public DatabaseSettings()
@@ -26,6 +27,7 @@ namespace Config
             IsRealBench = false;
 			ProceduresDBSettings = new Users.DBSettings(Users.Entities.DBType.MySql, string.Empty);
 			WaterMetersDBSettings = new Users.DBSettings(Users.Entities.DBType.MySql, string.Empty);
+            EventsDBSettings = new Users.DBSettings(Users.Entities.DBType.MySql, string.Empty);
 			UsersDBSettings = new Users.DBSettings(Users.Entities.DBType.MySql, string.Empty);
         }
 
@@ -37,17 +39,25 @@ namespace Config
             result.IsRealBench  = IsRealBench;
 			result.ProceduresDBSettings = (Users.DBSettings)ProceduresDBSettings.Clone();
 			result.WaterMetersDBSettings = (Users.DBSettings)WaterMetersDBSettings.Clone();
+            result.EventsDBSettings = (Users.DBSettings)EventsDBSettings.Clone();
             result.UsersDBSettings = (Users.DBSettings)UsersDBSettings.Clone();
 
             return result;
         }
 
+        public int CompareTo(object dbs2)
+        {
+            if (!(dbs2 is DatabaseSettings)) return 0;
+            return String.Compare(BenchName, (dbs2 as DatabaseSettings).BenchName);
+        }
+
 		public override string ToString()
 		{
-            return string.Format("{0} config={1} results={2} users={3}",
+            return string.Format("{0} config={1} results={2} events={3} users={4}",
                                  BenchName,
                                  ProceduresDBSettings.ConnectionString,
                                  WaterMetersDBSettings.ConnectionString,
+                                 EventsDBSettings.ConnectionString,
                                  UsersDBSettings.ConnectionString);
 		}
     }

Config/Entities/CustomEvent.cs

@@ -0,0 +1,93 @@
+///
+/// Copyright (c) 2020 Sensus Slovensko a.s.
+///
+using System;
+using Config.CalendarEvent;
+
+namespace Config.Entities
+{
+    public class CustomEvent : Config.CalendarEvent.ICalendarEvent
+    {
+        public virtual int Id { get; protected set; }
+        public virtual DateTime Date { get; set; }               /// The Date that the event occurs
+        public virtual Frequency Frequency { get; set; }         /// A value indicating how often the event occurs
+        public virtual bool AllDay { get; set; }                 /// True if the time component of the date can be ignored
+        public virtual bool TriggerOnExactDayOnly { get; set; }  /// If this is a recurring event, set this to true to make the event show up only from the day specified forward
+        public virtual string Source { get; set; }               /// Source of this calendar event (becomes the source of the triggered event)
+        public virtual string Title { get; set; }                /// The name of the event (becomes the text of the triggered event)
+        public virtual AutoAction AutoAction { get; set; }       /// Automated action to be done or event to be triggered
+        public virtual string Parameters { get; set; }           /// Automated action parameters (e.g. name of a procedure to start)
+        public virtual int Rank { get; set; }                    /// The ranking of the event that determines the order in which it is displayed on a particular day
+        public virtual bool Hidden { get; set; }                 /// True if the event is enabled, otherwise false
+        public virtual bool ReadOnly { get; set; }               /// True if the event details cannot be modified
+        public virtual int BackColor { get; set; }               /// The color that the event show up in on the calendar: (MSB)AARRGGBB(LSB)
+        public virtual int TextColor { get; set; }               /// The text color of the event: (MSB)AARRGGBB(LSB)
+        public virtual bool TooltipEnabled { get; set; }         /// True if a tooltip should be displayed when hovering over the event
+        public virtual CustomRecurringFrequenciesHandler
+                           CustomRecurringFunction { get; set; } /// Not mapped to DB, always null
+
+        /// <summary>
+        /// CustomEvent Constructor
+        /// </summary>
+        public CustomEvent()
+        {
+        }
+
+        public CustomEvent(DateTime dateTime, string text)
+        {
+            Date = dateTime;
+            Frequency = Config.CalendarEvent.Frequency.Once;
+            AllDay = false;
+            TriggerOnExactDayOnly = false;
+            Source = "Calendar";
+            Title = text;
+            AutoAction = AutoAction.None;
+            Parameters = string.Empty;
+            Rank = 2;
+            Hidden = false;
+            ReadOnly = false;
+            BackColor = unchecked((int)0xFFFF5050);
+            TextColor = unchecked((int)0xFFFFFFFF);
+            TooltipEnabled = true;
+            CustomRecurringFunction = null;
+        }
+
+        public virtual Config.CalendarEvent.ICalendarEvent Clone()
+        {
+            return new CustomEvent
+            {
+                Date = this.Date,
+                Frequency = this.Frequency,
+                AllDay = this.AllDay,
+                TriggerOnExactDayOnly = this.TriggerOnExactDayOnly,
+                Source = this.Source,
+                Title = this.Title,
+                AutoAction = this.AutoAction,
+                Parameters = this.Parameters,
+                Rank = this.Rank,
+                Hidden = this.Hidden,
+                ReadOnly = this.ReadOnly,
+                BackColor = this.BackColor,
+                TextColor = this.TextColor,
+                TooltipEnabled = this.TooltipEnabled,
+                CustomRecurringFunction = this.CustomRecurringFunction,
+            };
+        }
+
+        /// <summary>
+        /// Returns true when updated
+        /// </summary>
+        /// <param name="currentDate">Current date and time</param>
+        /// <returns>true when the entity was updated</returns>
+        public virtual bool UpdateRecurringDate(DateTime currentDate)
+        {
+            return Config.CalendarEvent.Utils.UpdateRecurringDate(this, currentDate);
+        }
+
+
+        public override string ToString()
+        {
+            return Title;
+        }
+    }
+}

Config/Entities/Enums.cs

@@ -67,12 +67,12 @@ namespace Config.Entities
     public class ProcedureInfo
     {
         public readonly string Name;
-        public readonly Users.Entities.DBKind DBKind;
+        public readonly bool IsRemote;
 
-        public ProcedureInfo(string name, Users.Entities.DBKind dbKind)
+        public ProcedureInfo(string name, bool isRemote)
         {
             Name = name;
-            DBKind = dbKind;
+            IsRemote = isRemote;
         }
     }
 
@@ -327,6 +327,27 @@ namespace Config.Entities
         Count
 	}
 
+    /// <summary>
+    /// Three state test results and/or water meter result (Algeria PT25 requirement).
+    /// NearlyOK means error is within error limits not narrowed by uncertainty
+    ///   OK:                   Uncertainty + ErrLimLo <= error <= ErrLimHi - Uncertainty
+    ///   NearlyOK:  not OK but stil          ErrLimLo <= error <= ErrLimHi
+    ///   Nok:       otherwise
+    /// </summary>
+    public enum ThreeState
+    {
+#if LANG_FR
+        [Description("NC")]         Nok,        /// Totally failed: not OK and not NearlyOK
+        [Description("2e/Ff")]      NearlyOK,   /// Nearly OK, not OK but not totally failed 
+        [Description("***")]        OK,         /// OK
+#else
+        [Description("NOK")]        Nok,        /// Totally failed: not OK and not NearlyOK
+        [Description("Nearly OK")]  NearlyOK,   /// Nearly OK, not OK but not totally failed 
+        [Description("OK")]         OK,         /// OK
+#endif
+        Count
+    }
+
     public enum TestProfile
     {
         UserDefined,
@@ -555,137 +576,70 @@ namespace Config.Entities
 	}
 
 
-    public enum ErrorFlagShift
-    {
-        E1 = 0,
-        E2,
-        E3,
-        E4,
-        E5,
-        E6,
-        E7,
-        E8,
-        E9,
-        E10,
-        E11,
-        E12,
-        E13,
-        E14,
-        E15,
-        E16,
-        E17,
-        E18,
-        E19,
-        E20,
-        E21,
-        E22,
-        E23,
-        E24,
-        E25,
-        E26,
-        E27,
-        E28,
-        E29,
-        E30,
-        E31,
-        E32,
-        E33,
-        E34,
-        E35,
-        E36,
-        E37,
-        E38,
-        E39,
-        E40,
-        E41,
-        E42,
-        E43,
-        E44,
-        E45,
-        E46,
-        E47,
-        E48,
-        E49,
-        E50,
-        E51,
-        E52,
-        E53,
-        E54,
-        E55,
-        E56,
-        E57,
-        E58,
-        E59,
-        E60,
-        E61,
-        E62,
-        E63,
-    }
-
     public enum ErrorFlagMask : long
     {
-        E1 = (1 << (int)ErrorFlagShift.E1),
-        E2 = (1 << (int)ErrorFlagShift.E2),
-        E3 = (1 << (int)ErrorFlagShift.E3),
-        E4 = (1 << (int)ErrorFlagShift.E4),
-        E5 = (1 << (int)ErrorFlagShift.E5),
-        E6 = (1 << (int)ErrorFlagShift.E6),
-        E7 = (1 << (int)ErrorFlagShift.E7),
-        E8 = (1 << (int)ErrorFlagShift.E8),
-        E9 = (1 << (int)ErrorFlagShift.E9),
-        E10 = (1 << (int)ErrorFlagShift.E10),
-        E11 = (1 << (int)ErrorFlagShift.E11),
-        E12 = (1 << (int)ErrorFlagShift.E12),
-        E13 = (1 << (int)ErrorFlagShift.E13),
-        E14 = (1 << (int)ErrorFlagShift.E14),
-        E15 = (1 << (int)ErrorFlagShift.E15),
-        E16 = (1 << (int)ErrorFlagShift.E16),
-        E17 = (1 << (int)ErrorFlagShift.E17),
-        E18 = (1 << (int)ErrorFlagShift.E18),
-        E19 = (1 << (int)ErrorFlagShift.E19),
-        E20 = (1 << (int)ErrorFlagShift.E20),
-        E21 = (1 << (int)ErrorFlagShift.E21),
-        E22 = (1 << (int)ErrorFlagShift.E22),
-        E23 = (1 << (int)ErrorFlagShift.E23),
-        E24 = (1 << (int)ErrorFlagShift.E24),
-        E25 = (1 << (int)ErrorFlagShift.E25),
-        E26 = (1 << (int)ErrorFlagShift.E26),
-        E27 = (1 << (int)ErrorFlagShift.E27),
-        E28 = (1 << (int)ErrorFlagShift.E28),
-        E29 = (1 << (int)ErrorFlagShift.E29),
-        E30 = (1 << (int)ErrorFlagShift.E30),
-        E31 = (1 << (int)ErrorFlagShift.E31),
-        E32 = (1 << (int)ErrorFlagShift.E32),
-        E33 = (1 << (int)ErrorFlagShift.E33),
-        E34 = (1 << (int)ErrorFlagShift.E34),
-        E35 = (1 << (int)ErrorFlagShift.E35),
-        E36 = (1 << (int)ErrorFlagShift.E36),
-        E37 = (1 << (int)ErrorFlagShift.E37),
-        E38 = (1 << (int)ErrorFlagShift.E38),
-        E39 = (1 << (int)ErrorFlagShift.E39),
-        E40 = (1 << (int)ErrorFlagShift.E40),
-        E41 = (1 << (int)ErrorFlagShift.E41),
-        E42 = (1 << (int)ErrorFlagShift.E42),
-        E43 = (1 << (int)ErrorFlagShift.E43),
-        E44 = (1 << (int)ErrorFlagShift.E44),
-        E45 = (1 << (int)ErrorFlagShift.E45),
-        E46 = (1 << (int)ErrorFlagShift.E46),
-        E47 = (1 << (int)ErrorFlagShift.E47),
-        E48 = (1 << (int)ErrorFlagShift.E48),
-        E49 = (1 << (int)ErrorFlagShift.E49),
-        E50 = (1 << (int)ErrorFlagShift.E50),
-        E51 = (1 << (int)ErrorFlagShift.E51),
-        E52 = (1 << (int)ErrorFlagShift.E52),
-        E53 = (1 << (int)ErrorFlagShift.E53),
-        E54 = (1 << (int)ErrorFlagShift.E54),
-        E55 = (1 << (int)ErrorFlagShift.E55),
-        E56 = (1 << (int)ErrorFlagShift.E56),
-        E57 = (1 << (int)ErrorFlagShift.E57),
-        E58 = (1 << (int)ErrorFlagShift.E58),
-        E59 = (1 << (int)ErrorFlagShift.E59),
-        E60 = (1 << (int)ErrorFlagShift.E60),
-        E61 = (1 << (int)ErrorFlagShift.E61),
-        E62 = (1 << (int)ErrorFlagShift.E62),
-        E63 = (1 << (int)ErrorFlagShift.E63),
+        E1 = (1L << 0),    /// shift = 0, E1 = 1L
+        E2 = (1L << 1),
+        E3 = (1L << 2),
+        E4 = (1L << 3),
+        E5 = (1L << 4),
+        E6 = (1L << 5),
+        E7 = (1L << 6),
+        E8 = (1L << 7),
+        E9 = (1L << 8),
+        E10 = (1L << 9),
+        E11 = (1L << 10),
+        E12 = (1L << 11),
+        E13 = (1L << 12),
+        E14 = (1L << 13),
+        E15 = (1L << 14),
+        E16 = (1L << 15),
+        E17 = (1L << 16),
+        E18 = (1L << 17),
+        E19 = (1L << 18),
+        E20 = (1L << 19),
+        E21 = (1L << 20),
+        E22 = (1L << 21),
+        E23 = (1L << 22),
+        E24 = (1L << 23),
+        E25 = (1L << 24),
+        E26 = (1L << 25),       /// iPERL: Invalid Q2 correction factors, mismatch between factors in the water meter and in DB
+        E27 = (1L << 26),       /// iPERL: Wrong counting direction
+        E28 = (1L << 27),       /// iPERL: Missing workflow step (assembly or test)
+        E29 = (1L << 28),
+        E30 = (1L << 29),
+        E31 = (1L << 30),
+        E32 = (1L << 31),
+        E33 = (1L << 32),
+        E34 = (1L << 33),
+        E35 = (1L << 34),
+        E36 = (1L << 35),
+        E37 = (1L << 36),
+        E38 = (1L << 37),
+        E39 = (1L << 38),
+        E40 = (1L << 39),
+        E41 = (1L << 40),
+        E42 = (1L << 41),
+        E43 = (1L << 42),
+        E44 = (1L << 43),
+        E45 = (1L << 44),
+        E46 = (1L << 45),
+        E47 = (1L << 46),
+        E48 = (1L << 47),
+        E49 = (1L << 48),
+        E50 = (1L << 49),
+        E51 = (1L << 50),
+        E52 = (1L << 51),
+        E53 = (1L << 52),
+        E54 = (1L << 53),
+        E55 = (1L << 54),
+        E56 = (1L << 55),
+        E57 = (1L << 56),
+        E58 = (1L << 57),
+        E59 = (1L << 58),
+        E60 = (1L << 59),
+        E61 = (1L << 60),
+        E62 = (1L << 61),
+        E63 = (1L << 62),
     }
 }

Config/Entities/PTest.cs

@@ -81,23 +81,23 @@ namespace Config.Entities
             Publish = (sbyte)Config.Entities.Publish.Always;
             Evaluate = true;
 
-            E1 = 1;
-            E2 = 1;
-            E3 = 1;
-            E4 = 1;
-            E5 = 1;
-            E6 = 1;
-            E7 = 1;
-            E8 = 1;
-            E9 = 1;
-            E10 = 1;
-            E11 = 1;
-            E12 = 1;
-            E13 = 1;
-            E14 = 1;
-            E15 = 1;
-            E16 = 1;
-            E21 = 1;
+            E1 = (sbyte)ErrorFlagsMode.On;
+            E2 = (sbyte)ErrorFlagsMode.On;
+            E3 = (sbyte)ErrorFlagsMode.On;
+            E4 = (sbyte)ErrorFlagsMode.On;
+            E5 = (sbyte)ErrorFlagsMode.On;
+            E6 = (sbyte)ErrorFlagsMode.On;
+            E7 = (sbyte)ErrorFlagsMode.On;
+            E8 = (sbyte)ErrorFlagsMode.On;
+            E9 = (sbyte)ErrorFlagsMode.On;
+            E10 = (sbyte)ErrorFlagsMode.On;
+            E11 = (sbyte)ErrorFlagsMode.On;
+            E12 = (sbyte)ErrorFlagsMode.On;
+            E13 = (sbyte)ErrorFlagsMode.On;
+            E14 = (sbyte)ErrorFlagsMode.On;
+            E15 = (sbyte)ErrorFlagsMode.On;
+            E16 = (sbyte)ErrorFlagsMode.Off;
+            E21 = (sbyte)ErrorFlagsMode.Off;
 
             Delta_Q_pct = 5.0;		/// [%]
             Delta_T = 10.0;		    /// [°C]

Config/Entities/Procedure.cs

@@ -1,5 +1,5 @@
 ///
-/// Copyright (c) 2013-2017 Sensus Metering Systems
+/// Copyright (c) 2013-2020 Sensus Slovensko a.s.
 ///
 using System;
 using System.Collections.Generic;
@@ -36,17 +36,34 @@ namespace Config.Entities
 		public virtual bool ManualCtrlDisabled { get; set; }	/// true = manual control of valves, etc. is disabled
 
 		public virtual string DataEntry { get; set; }			/// Component to use for data entry
-		public virtual string ResultsPrinter { get; set; }		/// Component to use for printing the results
-		public virtual string ResultsWriter { get; set; }		/// Component to use for saving the results into the file
-		public virtual string TransitionStart { get; set; }
+		public virtual string ResultsPrinter { get; set; }		/// Component for printing results
+		public virtual string ResultsWriter { get; set; }		/// Component for saving results into a file
+        public virtual string EventTriggers { get; set; }       /// Component for analysing results and triggering events
+        public virtual string TransitionStart { get; set; }
 		public virtual string TransitionEnd { get; set; }
 
         public virtual string AltProcName { get; set; }		    /// Alternative procedure name (null or string.Empty = no alt. procedure)
         public virtual int AltProcPeriod { get; set; }			/// Period of alternative procedures (0 = no alt. procedure)
 
+        public virtual float DN { get; set; }                   /// Not mapped to DB, valid in ProceduresCtrl for procedure filtering only
+        public virtual float Qn { get; set; }                   ///   - ' ' -
+        public virtual string MClass { get; set; }              ///   - ' ' -
+        public virtual string Producer { get; set; }            ///   - ' ' -
+
 		public virtual IList<ComponentProcedure> MoreParams { get; set; }
 		public virtual IList<Test> Tests { get; set; }
 
+        /// Wrapper
+        public virtual IList<Test> RegularTests()
+        {
+            IList<Test> rslt = new List<Test>();
+            foreach (var t in Tests)
+            {
+                if ((t.Name.Length > 0 && t.Name[0] != '[') || !t.Name.Contains("]"))  rslt.Add(t);
+            }
+            return rslt;
+        }
+
         /// ------------- Additional stuff not mapped into the database -------------
 
         public Procedure()
@@ -65,6 +82,11 @@ namespace Config.Entities
 			Watermeters = string.Empty;
 			Description = string.Empty;
 			LongDescription = string.Empty;
+
+            DN = 0;
+            Qn = 0;
+            MClass = string.Empty;
+            Producer = string.Empty;
         }
 
 		public Procedure(string name, int itemNr)
@@ -98,11 +120,17 @@ namespace Config.Entities
 			result.DataEntry = DataEntry;
 			result.ResultsPrinter = ResultsPrinter;
 			result.ResultsWriter = ResultsWriter;
-			result.TransitionStart = TransitionStart;
+            result.EventTriggers = EventTriggers;
+            result.TransitionStart = TransitionStart;
 			result.TransitionEnd = TransitionEnd;
             result.AltProcName = AltProcName;
             result.AltProcPeriod = AltProcPeriod;
 
+            result.DN = DN;
+            result.Qn = Qn;
+            result.MClass = MClass;
+            result.Producer = Producer;
+
 			foreach (var prms in MoreParams) { result.MoreParams.Add(prms.Clone(result)); }
 			foreach (var test in Tests) { result.Tests.Add(test.Clone()); }
 
@@ -126,6 +154,7 @@ namespace Config.Entities
             output.WriteLine(DataEntry);
             output.WriteLine(ResultsPrinter);
             output.WriteLine(ResultsWriter);
+            output.WriteLine(EventTriggers);
             output.WriteLine(TransitionStart); 
             output.WriteLine(TransitionEnd);
 
@@ -158,6 +187,7 @@ namespace Config.Entities
             result.DataEntry = input.ReadLine();
             result.ResultsPrinter = input.ReadLine();
             result.ResultsWriter = input.ReadLine();
+            result.EventTriggers = input.ReadLine();
             result.TransitionStart = input.ReadLine();
             result.TransitionEnd = input.ReadLine();
 
@@ -204,6 +234,7 @@ namespace Config.Entities
             ln = inp.ReadLine(); if (ln != DataEntry)                     { diff.AppendFormat(fmt, "DataEntry", DataEntry, ln); };
             ln = inp.ReadLine(); if (ln != ResultsPrinter)                { diff.AppendFormat(fmt, "ResultsPrinter", ResultsPrinter, ln); };
             ln = inp.ReadLine(); if (ln != ResultsWriter)                 { diff.AppendFormat(fmt, "ResultsWriter", ResultsWriter, ln); };
+            ln = inp.ReadLine(); if (ln != EventTriggers)                 { diff.AppendFormat(fmt, "EventTriggers", EventTriggers, ln); };
             ln = inp.ReadLine(); if (ln != TransitionStart)               { diff.AppendFormat(fmt, "TransitionStart", TransitionStart, ln); };
             ln = inp.ReadLine(); if (ln != TransitionEnd)                 { diff.AppendFormat(fmt, "TransitionEnd", TransitionEnd, ln); };
 

Config/FluentCommon.cs

@@ -119,10 +119,10 @@ namespace Config
 		/// Create a NHibernate session for the given database
 		public static ISession CreateSession(Users.Entities.DBKind database)
 		{
-			int ix = (int)database;
-			if (ix < 0 || ix >= (int)Users.Entities.DBKind.Count) return null;
+            if (database < 0 || database >= Users.Entities.DBKind.Count) return null;
 
-			if (SessionFactories[ix] == null) SessionFactories[ix] = CreateSessionFactory(database);
+            int ix = (int)database;
+            if (SessionFactories[ix] == null) SessionFactories[ix] = CreateSessionFactory(database);
 
 			return SessionFactories[ix].OpenSession();
 		}

Config/Mappings/CustomEventMap.cs

@@ -0,0 +1,30 @@
+///
+/// Copyright (c) 2020 Sensus Slovensko a.s.
+///
+using FluentNHibernate.Mapping;
+using Config.Entities;
+
+namespace Config.Mappings
+{
+    class CustomEventMap : ClassMap<CustomEvent>
+    {
+        public CustomEventMap()
+        {
+            Id(x => x.Id);
+            Map(x => x.Date);
+            Map(x => x.Frequency);
+            Map(x => x.AllDay);
+            Map(x => x.TriggerOnExactDayOnly);
+            Map(x => x.Source);
+            Map(x => x.Title);
+            Map(x => x.AutoAction);
+            Map(x => x.Parameters);
+            Map(x => x.Rank);
+            Map(x => x.Hidden);
+            Map(x => x.ReadOnly);
+            Map(x => x.BackColor);
+            Map(x => x.TextColor);
+            Map(x => x.TooltipEnabled);
+        }
+    }
+}

Config/Mappings/ProcedureMap.cs

@@ -1,5 +1,5 @@
 ///
-/// Copyright (c) 2013-2015 Sensus Metering Systems
+/// Copyright (c) 2013-2020 Sensus Slovensko a.s.
 ///
 using FluentNHibernate.Mapping;
 using Config.Entities;
@@ -35,6 +35,7 @@ namespace Config.Mappings
             Map(x => x.DataEntry);
 			Map(x => x.ResultsPrinter);
 			Map(x => x.ResultsWriter);
+            Map(x => x.EventTriggers);
 			Map(x => x.TransitionStart);
 			Map(x => x.TransitionEnd);
 

Config/Mappings/TestMap.cs

@@ -18,9 +18,7 @@ namespace Config.Mappings
             Map(x => x.Publish);
 			Map(x => x.DoEvaluate)
 				.Column("Evaluate");
-#if TEST_PROFILES
             Map(x => x.Qtg);
-#endif
             Map(x => x.Qfrom);
 			Map(x => x.Qto);
 			Map(x => x.Volume);

Config/Properties/AssemblyInfo.cs

@@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("2.25.1400.0")]
-[assembly: AssemblyFileVersion("2.25.1400.0")]
+[assembly: AssemblyVersion("2.26.1519.0")]
+[assembly: AssemblyFileVersion("2.26.1519.0")]

Config/Resources/Strings.Designer.cs

@@ -60,24 +60,6 @@ namespace Config.Resources {
             }
         }
         
-        /// <summary>
-        ///   Looks up a localized string similar to Administrator.
-        /// </summary>
-        internal static string Administrator {
-            get {
-                return ResourceManager.GetString("Administrator", resourceCulture);
-            }
-        }
-        
-        /// <summary>
-        ///   Looks up a localized string similar to Calibration Specialist.
-        /// </summary>
-        internal static string Calibration_Specialist {
-            get {
-                return ResourceManager.GetString("Calibration_Specialist", resourceCulture);
-            }
-        }
-        
         /// <summary>
         ///   Looks up a localized string similar to Cannot open DB Cause 0.
         /// </summary>
@@ -92,8 +74,7 @@ namespace Config.Resources {
 		/// </summary>
 		internal static string Error
 		{
-			get
-			{
+			get {
 				return ResourceManager.GetString("Error", resourceCulture);
 			}
 		}
@@ -107,33 +88,6 @@ namespace Config.Resources {
             }
         }
         
-        /// <summary>
-        ///   Looks up a localized string similar to Head of Lab.
-        /// </summary>
-        internal static string Head_of_Lab {
-            get {
-                return ResourceManager.GetString("Head_of_Lab", resourceCulture);
-            }
-        }
-        
-        /// <summary>
-        ///   Looks up a localized string similar to Maintenance Specialist.
-        /// </summary>
-        internal static string Maintenance_Specialist {
-            get {
-                return ResourceManager.GetString("Maintenance_Specialist", resourceCulture);
-            }
-        }
-        
-        /// <summary>
-        ///   Looks up a localized string similar to Metrologist.
-        /// </summary>
-        internal static string Metrologist {
-            get {
-                return ResourceManager.GetString("Metrologist", resourceCulture);
-            }
-        }
-        
         /// <summary>
         ///   Looks up a localized string similar to Passed.
         /// </summary>
@@ -142,22 +96,114 @@ namespace Config.Resources {
                 return ResourceManager.GetString("Passed", resourceCulture);
             }
         }
-        
+
         /// <summary>
-        ///   Looks up a localized string similar to Tester.
+        ///   Looks up a localized string similar to Once.
         /// </summary>
-        internal static string Tester {
+        internal static string Once
+        {
             get {
-                return ResourceManager.GetString("Tester", resourceCulture);
+                return ResourceManager.GetString("Once", resourceCulture);
             }
         }
-        
+
         /// <summary>
-        ///   Looks up a localized string similar to Testing Specialist.
+        ///   Looks up a localized string similar to Every year.
         /// </summary>
-        internal static string Testing_Specialist {
+        internal static string Every_year
+        {
             get {
-                return ResourceManager.GetString("Testing_Specialist", resourceCulture);
+                return ResourceManager.GetString("Every_year", resourceCulture);
+            }
+        }
+
+        /// <summary>
+        ///   Looks up a localized string similar to Every Month.
+        /// </summary>
+        internal static string Every_Month
+        {
+            get {
+                return ResourceManager.GetString("Every_Month", resourceCulture);
+            }
+        }
+
+        /// <summary>
+        ///   Looks up a localized string similar to Every week.
+        /// </summary>
+        internal static string Every_week
+        {
+            get {
+                return ResourceManager.GetString("Every_week", resourceCulture);
+            }
+        }
+
+        /// <summary>
+        ///   Looks up a localized string similar to Daily.
+        /// </summary>
+        internal static string Daily
+        {
+            get {
+                return ResourceManager.GetString("Daily", resourceCulture);
+            }
+        }
+
+        /// <summary>
+        ///   Looks up a localized string similar to Every shift.
+        /// </summary>
+        internal static string Every_shift
+        {
+            get {
+                return ResourceManager.GetString("Every_shift", resourceCulture);
+            }
+        }
+
+        /// <summary>
+        ///   Looks up a localized string similar to Every Monday, Wednesday and Friday.
+        /// </summary>
+        internal static string Every_Mon_Wed_and_Fri
+        {
+            get {
+                return ResourceManager.GetString("Every_Mon_Wed_and_Fri", resourceCulture);
+            }
+        }
+
+        /// <summary>
+        ///   Looks up a localized string similar to Every Tuesday and Thursday.
+        /// </summary>
+        internal static string Every_Tue_and_Thu
+        {
+            get {
+                return ResourceManager.GetString("Every_Tue_and_Thu", resourceCulture);
+            }
+        }
+
+        /// <summary>
+        ///   Looks up a localized string similar to Every Week Day (Mon - Fri).
+        /// </summary>
+        internal static string Every_Week_Day
+        {
+            get {
+                return ResourceManager.GetString("Every_Week_Day", resourceCulture);
+            }
+        }
+
+        /// <summary>
+        ///   Looks up a localized string similar to Custom.
+        /// </summary>
+        internal static string Custom
+        {
+            get {
+                return ResourceManager.GetString("Custom", resourceCulture);
+            }
+        }
+
+        /// <summary>
+        ///   Looks up a localized string similar to Administrator.
+        /// </summary>
+        internal static string Administrator
+        {
+            get {
+                return ResourceManager.GetString("Administrator", resourceCulture);
             }
         }
     }

Config/Resources/Strings.cs.resx

@@ -117,7 +117,40 @@
   <resheader name="writer">
     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
+  <data name="Custom" xml:space="preserve">
+    <value>Volitelně</value>
+  </data>
+  <data name="Daily" xml:space="preserve">
+    <value>Každý den</value>
+  </data>
   <data name="Error" xml:space="preserve">
     <value>Chyba</value>
   </data>
+  <data name="Every_Month" xml:space="preserve">
+    <value>Každý měsíc</value>
+  </data>
+  <data name="Every_Mon_Wed_and_Fri" xml:space="preserve">
+    <value>Každý pondělí, středu a pátek</value>
+  </data>
+  <data name="Every_shift" xml:space="preserve">
+    <value>Každou směnu</value>
+  </data>
+  <data name="Every_Tue_and_Thu" xml:space="preserve">
+    <value>Každý úterí a čtvrtek</value>
+  </data>
+  <data name="Every_week" xml:space="preserve">
+    <value>Každý týden</value>
+  </data>
+  <data name="Every_Week_Day" xml:space="preserve">
+    <value>Každý pracovní den (pon. - pá.)</value>
+  </data>
+  <data name="Every_year" xml:space="preserve">
+    <value>Každý rok</value>
+  </data>
+  <data name="Once" xml:space="preserve">
+    <value>Jednou</value>
+  </data>
+  <data name="Administrator" xml:space="preserve">
+    <value>Správce</value>
+  </data>
 </root>

Config/Resources/Strings.de.resx

@@ -118,15 +118,15 @@
     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
   <data name="Failed" xml:space="preserve">
-    <value>NiO</value>
+    <value>Nicht OK</value>
   </data>
   <data name="Passed" xml:space="preserve">
-    <value>iO</value>
+    <value>OK</value>
   </data>
   <data name="Error" xml:space="preserve">
     <value>Fehler</value>
   </data>
   <data name="Cannot_open_DB_Cause_0" xml:space="preserve">
-    <value>Datenbank kann nicht geöffnet.\\r\\nUrsache:\\r\\n{0}</value>
+    <value>Datenbank kann nicht geöffnet werden.\\r\\nUrsache:\\r\\n{0}</value>
   </data>
 </root>

Config/Resources/Strings.resx

@@ -129,4 +129,37 @@
   <data name="Error" xml:space="preserve">
     <value>Error</value>
   </data>
+  <data name="Custom" xml:space="preserve">
+    <value>Custom</value>
+  </data>
+  <data name="Daily" xml:space="preserve">
+    <value>Daily</value>
+  </data>
+  <data name="Every_Month" xml:space="preserve">
+    <value>Every Month</value>
+  </data>
+  <data name="Every_Mon_Wed_and_Fri" xml:space="preserve">
+    <value>Every Monday, Wednesday and Friday</value>
+  </data>
+  <data name="Every_shift" xml:space="preserve">
+    <value>Every shift</value>
+  </data>
+  <data name="Every_Tue_and_Thu" xml:space="preserve">
+    <value>Every Tuesday and Thursday</value>
+  </data>
+  <data name="Every_week" xml:space="preserve">
+    <value>Every week</value>
+  </data>
+  <data name="Every_Week_Day" xml:space="preserve">
+    <value>Every Week Day (Mon - Fri)</value>
+  </data>
+  <data name="Every_year" xml:space="preserve">
+    <value>Every year</value>
+  </data>
+  <data name="Once" xml:space="preserve">
+    <value>Once</value>
+  </data>
+  <data name="Administrator" xml:space="preserve">
+    <value>Administrator</value>
+  </data>
 </root>

Config/Units.cs

@@ -1,5 +1,5 @@
 ///
-/// Copyright (c) 2016-2018 Sensus Slovensko a.s.
+/// Copyright (c) 2016-2020 Sensus Slovensko a.s.
 ///
 using System;
 using System.Reflection;
@@ -17,24 +17,31 @@ namespace Config
 #else
         [Description("degree")]     degree,
 #endif
+        [Description("ml")]         ml,         ///   1 ml = 0.001 l
         [Description("l")]          l,          /// * 1 liter
-        [Description("dm3")]        dm3,        ///   1 dm3 = 1 liter
-        [Description("m3")]         m3,         ///   1000 l
-        [Description("gal(UK)")]    gal_UK,     ///   1 gal(UK) = 4.54609 l
-        [Description("gal(US)")]    gal_US,     ///   1 gal(US) = 3.78541178 l
+        [Description("dm3")]        dm3,        ///   1 dm3 = 1 l
+        [Description("US gal")]     USgal,      ///   1 US gallon = 3.78541178 l
+        [Description("imper.gal")]  UKgal,      ///   1 imperial gallon = 4.54609 l
+        [Description("cf")]         cf,         ///   1 cubic foot = 28.316846592 l
+        [Description("m3")]         m3,         ///   1 m3 = 1000 l
 
-        [Description("l/h")]        lph,        ///   1 liter/h
-        [Description("m3/h")]       m3ph,       /// * 1 m3/h = 1000 l/h
+        [Description("l/h")]        lph,        ///   1 l/h = 0.001 m3/h
+        [Description("l/m")]        lpm,        ///   1 l/m = 60 l/h = 0.06 m3/h
+        [Description("m3/h")]       m3ph,       /// * 1 m3/h
+        [Description("l/s")]        lps,        ///   1 liter/s = 3.6 m3/h
+        [Description("US gal/s")]   USgalps,    ///   1 US gallon per second = 13.627482408 m3/h
+        [Description("m3/m")]       m3pm,       ///   1 m3/m = 60 m3/h
+        [Description("cf/s")]       cfs,        ///   1 cubic foot per second = 101.9406477312 m3/h
 
         [Description("g")]          g,          ///   0.001 kg
+        [Description("lb")]         lb,         ///   0.45359237 kg
         [Description("kg")]         kg,         /// * 1 kilogram
         [Description("t")]          t,          ///   1000 kg
-        [Description("lb")]         lb,         ///   0.45359237 kg
 
+        [Description("ms")]         ms,         ///   1 ms = 0.001 s
         [Description("s")]          s,          /// * 1 second
         [Description("min")]        min,        ///   1 min = 60 s
         [Description("hr")]         hour,       ///   1 hour = 60 min = 3600 s
-        [Description("ms")]         ms,         ///   1 ms = 0.001 s
 
 		[Description("°C")]         C,          /// * degree Celsius (°C)
         [Description("°F")]         F,          ///   degree Fahrenheit
@@ -42,21 +49,25 @@ namespace Config
 
         [Description("Pa")]         Pa,         ///   1 Pa = 0.01 hPa
         [Description("hPa")]        hPa,        ///   1 hPa = 100 Pa
-        [Description("kPa")]        kPa,        ///   1 kPa = 10 HPa
-        [Description("MPa")]        MPa,        ///   1 MPa = 10000 hPa
         [Description("mbar")]       mbar,       ///   1 mbar = 1 hPa = 100 Pa
-        [Description("bar")]        bar,        /// * 1 Bar = 1000 mbar = 0.1 MPa = 100000 Pa
+        [Description("kPa")]        kPa,        ///   1 kPa = 10 hPa = 1000 Pa
         [Description("inHg")]       inHg,       ///   1 inHg = 33.864 hPa
+        [Description("psi")]        psi,        ///   1 psi = 0.0689475729 bar
+        [Description("bar")]        bar,        /// * 1 Bar = 1000 mbar = 0.1 MPa = 100000 Pa
+        [Description("MPa")]        MPa,        ///   1 MPa = 10000 hPa
 
         [Description("R%")]         RPct,       /// * 1 R%
 
-        [Description("%")]          Pct,        /// * 1 %
         [Description("promile")]    Promile,    ///   1 promile = 0.1 %
+        [Description("%")]          Pct,        /// * 1 %
 
         [Description("mm")]         mm,         /// * 1 millimeter
         [Description("cm")]         cm,         ///   1 cm = 10 mm
-        [Description("m")]          m,          ///   1 m = 1000 mm
         [Description("in")]         inch,       ///   1 inch = 25.4 mm
+        [Description("dm")]         dm,         ///   1 dm = 100 mm
+        [Description("ft")]         foot,       ///   1 foot = 304.8 mm
+        [Description("yd")]         yard,       ///   1 yard = 914.4 mm
+        [Description("m")]          m,          ///   1 m = 1000 mm
 
         [Description("kg/m3")]      kgpm3,		/// * 1 kg/m3 = 0.001 kg/l
         [Description("kg/l")]       kgpl,		///   1 kg/l = 1000 kg/m3
@@ -68,6 +79,9 @@ namespace Config
         [Description("kWh")]        kWh,		///   1 kWh = 3600000 J
         [Description("MWh")]        MWh,		///   1 MWh = 3600000000 J
 
+        [Description("uS/cm")]      uSpcm,      /// * 1 uS/cm
+        [Description("mS/m")]       mSpm,       ///   1 mS/m = 10 uS/cm
+
 #if LANG_PL
         [Description("imp/l")]       ppl,		/// * 1 pulse/l
         [Description("imp/dm3")]     ppdm3,		/// * 1 pulse/dm3
@@ -79,17 +93,17 @@ namespace Config
         [Description("dm3/stopień")] dm3pdeg,	/// * 1 dm3/degree
 #else
         [Description("pulse/l")]    ppl,		/// * 1 pulse/l
-        [Description("pulse/dm3")]  ppdm3,		/// * 1 pulse/dm3
-        [Description("degree/l")]   degpl,		/// * 1 degree/l
-        [Description("degree/dm3")] degpdm3,	/// * 1 degree/dm3
-        [Description("l/pulse")]    lpp,		/// * 1 l/pulse
-        [Description("dm3/pulse")]  dm3pp,		/// * 1 dm3/pulse
-        [Description("l/degree")]   lpdeg,		/// * 1 l/degree
-        [Description("dm3/degree")] dm3pdeg,	/// * 1 dm3/degree
+        [Description("pulse/dm3")]  ppdm3,		///   1 pulse/dm3
+        [Description("degree/l")]   degpl,		///   1 degree/l
+        [Description("degree/dm3")] degpdm3,	///   1 degree/dm3
+        [Description("l/pulse")]    lpp,		///   1 l/pulse
+        [Description("dm3/pulse")]  dm3pp,		///   1 dm3/pulse
+        [Description("l/degree")]   lpdeg,		///   1 l/degree
+        [Description("dm3/degree")] dm3pdeg,	///   1 dm3/degree
 #endif
         /// 
         [Description("pulse/kWh")]  ppkWh,		/// * 1 pulse/kWh
-        [Description("kWh/pulse")]  kWhpp,		/// * 1 kWh/pulse
+        [Description("kWh/pulse")]  kWhpp,		///   1 kWh/pulse
                                                 
         Count
     }
@@ -112,12 +126,14 @@ namespace Config
 		[Description("Impulse")]			Pulses,
         [Description("Impulse/l")]			PulsePerLtr,
         [Description("Impulse/kWh")]		PulsePerKWh,
+        [Description("Leitfähigkeit")]      Conductivity,
 
         /// Quantities without units and conversions
         [Description("Nummer")]				Number,
         [Description("Text")]				String,
         [Description("Boolean")]			Boolean,
         [Description("Datum und Uhrzeit")]  DateTime,
+        [Description("Aufgezählt")]         Enumerated,
 #elif LANG_PL
         [Description("Objętość")]			Volume,
 		[Description("Przepływ")]           Flow,
@@ -133,12 +149,14 @@ namespace Config
         [Description("Impulsy")]            Pulses,
         [Description("Impulsy/litr")]       PulsePerLtr,
         [Description("Impulsy/kWh")]		PulsePerKWh,
+        [Description("Przewodność")]        Conductivity,
 
         /// Quantities without units and conversions
         [Description("Numer")]				Number,
         [Description("Tekst")]				String,
         [Description("Boolean")]			Boolean,
         [Description("Data i czas")]		DateTime,
+        [Description("Wyliczone")]          Enumerated,
 #elif LANG_CS
 		[Description("Objem")]				Volume,
 		[Description("Průtok")]				Flow,
@@ -154,12 +172,14 @@ namespace Config
 		[Description("Pulzy")]				Pulses,
         [Description("Pulzy/litr")]			PulsePerLtr,
         [Description("Pulzy/kWh")]			PulsePerKWh,
+        [Description("Vodivost")]           Conductivity,
 
         /// Quantities without units and conversions
         [Description("Počet")]				Number,
         [Description("Text")]				String,
         [Description("Boolean")]			Boolean,
         [Description("Datum a čas")]		DateTime,
+        [Description("Vyjmenované")]        Enumerated,
 #elif LANG_IT
 		[Description("Volume")]				Volume,
 		[Description("Flusso")]				Flow,
@@ -175,12 +195,14 @@ namespace Config
 		[Description("Impulso")]			Pulses,
         [Description("Impulso/litro")]		PulsePerLtr,
         [Description("Impulso/kWh")]		PulsePerKWh,
+        [Description("Conduttività")]       Conductivity,
 
         /// Quantities without units and conversions
         [Description("Numero")]				Number,
         [Description("Stringa")]			String,
         [Description("Boolean")]			Boolean,
         [Description("Data e ora")]		    DateTime,
+        [Description("Enumerato")]          Enumerated,
 #else
         [Description("Volume")]				Volume,
 		[Description("Flow")]				Flow,
@@ -196,12 +218,14 @@ namespace Config
 		[Description("Pulses")]				Pulses,
         [Description("Pulses/liter")]		PulsePerLtr,
         [Description("Pulses/kWh")]			PulsePerKWh,
+        [Description("Conductivity")]       Conductivity,
 
         /// Quantities without units and conversions
         [Description("Number")]				Number,
         [Description("String")]				String,
         [Description("Boolean")]			Boolean,
         [Description("Date and time")]		DateTime,
+        [Description("Enumerated")]         Enumerated,
 #endif
         Count,
 	}
@@ -215,8 +239,9 @@ namespace Config
 
         public static bool IsDefaultUnit(Unit unit)
         {
-            return unit == Unit.l || unit == Unit.m3ph || unit == Unit.kg || unit == Unit.s || unit == Unit.C || unit == Unit.bar || unit == Unit.RPct ||
-                   unit == Unit.Pct || unit == Unit.mm || unit == Unit.kgpm3 || unit == Unit.J || unit == Unit.ppl || unit == Unit.ppkWh;
+            return unit == Unit.l || unit == Unit.m3ph || unit == Unit.kg || unit == Unit.s || unit == Unit.C ||
+                   unit == Unit.bar || unit == Unit.RPct || unit == Unit.Pct || unit == Unit.mm || unit == Unit.kgpm3 ||
+                   unit == Unit.J || unit == Unit.uSpcm || unit == Unit.ppl || unit == Unit.ppkWh;
         }
 
         public static bool IsQuantity(Unit units, Quantity quantity)
@@ -230,61 +255,72 @@ namespace Config
             {
                 case Unit.pulse:
                 case Unit.degree:
-                    return Config.Quantity.Pulses;
+                    return Quantity.Pulses;
 
+                case Unit.ml:
                 case Unit.l:
                 case Unit.dm3:
+                case Unit.USgal:
+                case Unit.UKgal:
+                case Unit.cf:
                 case Unit.m3:
-                case Unit.gal_UK:
-                case Unit.gal_US:
-					return Config.Quantity.Volume;
+					return Quantity.Volume;
 
                 case Unit.lph:
+                case Unit.lpm:
                 case Unit.m3ph:
-					return Config.Quantity.Flow;
+                case Unit.lps:
+                case Unit.USgalps:
+                case Unit.m3pm:
+                case Unit.cfs:
+                    return Quantity.Flow;
 
                 case Unit.g:
+                case Unit.lb:
                 case Unit.kg:
                 case Unit.t:
-                case Unit.lb:
-					return Config.Quantity.Mass;
+					return Quantity.Mass;
 
+                case Unit.ms:
                 case Unit.s:
                 case Unit.min:
                 case Unit.hour:
-                case Unit.ms:
-                    return Config.Quantity.Time;
+                    return Quantity.Time;
 
                 case Unit.C:
                 case Unit.F:
                 case Unit.K:
-					return Config.Quantity.Temperature;
+					return Quantity.Temperature;
 
                 case Unit.Pa:
                 case Unit.hPa:
                 case Unit.mbar:
                 case Unit.kPa:
+                case Unit.inHg:
+                case Unit.psi:
                 case Unit.bar:
                 case Unit.MPa:
-                case Unit.inHg:
-					return Config.Quantity.Pressure;
+                    return Quantity.Pressure;
 
                 case Unit.RPct:
-                    return Config.Quantity.Humidity;
+                    return Quantity.Humidity;
 
-                case Unit.Pct:
                 case Unit.Promile:
-					return Config.Quantity.Error;
+                case Unit.Pct:
+					return Quantity.Error;
 
                 case Unit.mm:
                 case Unit.cm:
-                case Unit.m:
                 case Unit.inch:
-					return Config.Quantity.Length;
+                case Unit.dm:
+                case Unit.foot:
+                case Unit.yard:
+                case Unit.m:
+					return Quantity.Length;
 
 				case Unit.kgpm3:
 				case Unit.kgpl:
-					return Config.Quantity.Density;
+					return Quantity.Density;
 
 				case Unit.J:
 				case Unit.kJ:
@@ -292,7 +328,11 @@ namespace Config
                 case Unit.Wh:
 				case Unit.kWh:
                 case Unit.MWh:
-                    return Config.Quantity.Energy;
+                    return Quantity.Energy;
+
+                case Unit.uSpcm:
+                case Unit.mSpm:
+                    return Quantity.Conductivity;
 
                 case Unit.ppl:
                 case Unit.ppdm3:
@@ -302,14 +342,14 @@ namespace Config
                 case Unit.dm3pp:
                 case Unit.lpdeg:
                 case Unit.dm3pdeg:
-                    return Config.Quantity.PulsePerLtr;
+                    return Quantity.PulsePerLtr;
 
                 case Unit.ppkWh:
                 case Unit.kWhpp:
-                    return Config.Quantity.PulsePerKWh;
+                    return Quantity.PulsePerKWh;
 
                 default:
-					return Config.Quantity.Number;
+					return Quantity.Number;
             }
 		}
 
@@ -327,6 +367,7 @@ namespace Config
         public static bool IsPulses(Unit units) { return IsQuantity(units, Config.Quantity.Pulses); }
         public static bool IsPulsePerLtr(Unit units) { return IsQuantity(units, Config.Quantity.PulsePerLtr); }
         public static bool IsPulsePerKWh(Unit units) { return IsQuantity(units, Config.Quantity.PulsePerKWh); }
+        public static bool IsConductivity(Unit units) { return IsQuantity(units, Config.Quantity.Conductivity); }
 
 
 		public static double ConvertTo(Unit units, double v)
@@ -334,71 +375,75 @@ namespace Config
             switch (units)
             {
                 /// Volume: internal representation in l
-                case Unit.dm3:
-                case Unit.l:        return v;               /// 1 liter
-                case Unit.m3:       return 0.001 * v;       /// 1 m3 = 1000 l
-                case Unit.gal_UK:   return 0.21996925 * v;  /// 1 gal(UK) = 4.54609 l
-                case Unit.gal_US:   return 0.26417205 * v;  /// 1 gal(US) = 3.78541178 l
+                case Unit.ml:       return 1000 * v;            /// 1 ml = 0.001 l
+                case Unit.USgal:    return 0.26417205 * v;      /// 1 gal(US) = 3.78541178 l
+                case Unit.UKgal:    return 0.21996925 * v;      /// 1 gal(UK) = 4.54609 l
+                case Unit.cf:       return 0.0353146667215 * v; /// 1 cubic foot = 28.316846592 l
+                case Unit.m3:       return 0.001 * v;           /// 1 m3 = 1000 l
 
                 /// Flow: internal representation in m3/h
-                case Unit.lph:      return 1000 * v;        /// 1 liter/h
-                case Unit.m3ph:     return v;               /// 1 m3/h = 1000 l/h
+                case Unit.lph:      return 1000 * v;            /// 1 l/h
+                case Unit.lpm:      return v / 0.06;            /// 1 l/m
+                case Unit.lps:      return v / 3.6;             /// 1 l/s
+                case Unit.USgalps:  return 0.0733811257326 * v; /// 1 US gallon per second
+                case Unit.m3pm:     return v / 60;              /// 1 m3/m
+                case Unit.cfs:      return 0.009809629644858 * v; /// 1 cubic foot per second
 
                 /// Mass: internal representation in kg
-                case Unit.g:        return 1000 * v;        /// 1 g = 0.001 kg
-                case Unit.kg:       return v;               /// 1 kilogram
-                case Unit.t:        return 0.001 * v;       /// 1 t = 1000 kg
-                case Unit.lb:       return 2.2046226 * v;   /// 1 lb = 0.45359237 kg
+                case Unit.g:        return 1000 * v;            /// 1 g = 0.001 kg
+                case Unit.lb:       return 2.2046226 * v;       /// 1 lb = 0.45359237 kg
+                case Unit.t:        return 0.001 * v;           /// 1 t = 1000 kg
 
                 /// Time or duration: internal representation in seconds [s] 
-                case Unit.s:        return v;
+                case Unit.ms:       return 1000 * v;
                 case Unit.min:      return v / 60;
                 case Unit.hour:     return v / 3600;
-                case Unit.ms:       return 1000 * v;
 
 				/// Temperature: internal representation in °C
-				case Unit.C:        return v;               /// degree Celsius (°C)
-                case Unit.F:        return 1.8 * v + 32;    /// degree Fahrenheit
-                case Unit.K:        return v + 273.15;      /// degree Kelvin
+                case Unit.F:        return 1.8 * v + 32;        /// degree Fahrenheit
+                case Unit.K:        return v + 273.15;          /// degree Kelvin
 
                 /// Pressure: internal representation in  bar = 0.1 MPa
-                case Unit.Pa:       return 100000 * v;      /// 1 hPa = 100 Pa
-                case Unit.hPa:      return 1000 * v;        /// 1 hPa = 100 Pa
-                case Unit.mbar:     return 1000 * v;        /// 1 mbar = 1 hPa = 100 Pa
-                case Unit.kPa:      return 100 * v;         /// 1 kPa = 10 HPa
-                case Unit.bar:      return v;               /// 1 bar = 1000 mbar = 100000 Pa
-                case Unit.MPa:      return 0.1 * v;         /// 1 MPa = 10000 hPa
-                case Unit.inHg:     return 29.53 * v;       /// 1 inHg = 33.864 hPa
+                case Unit.Pa:       return 100000 * v;          /// 1 hPa = 100 Pa
+                case Unit.hPa:      return 1000 * v;            /// 1 hPa = 100 Pa
+                case Unit.mbar:     return 1000 * v;            /// 1 mbar = 1 hPa = 100 Pa
+                case Unit.kPa:      return 100 * v;             /// 1 kPa = 10 HPa
+                case Unit.inHg:     return 29.53 * v;           /// 1 inHg =
+                case Unit.psi:      return 14.5037738 * v;      /// 1 psi =
+                case Unit.MPa:      return 0.1 * v;             /// 1 MPa = 10000 hPa
 
-                /// Error: internal representation in %
-                case Unit.Pct:      return v;               /// 1 %
-                case Unit.Promile:  return 10 * v;          /// 1 promile = 0.1 %
+                /// Relative error: internal representation in %
+                case Unit.Promile:  return 10 * v;              /// 1 promile = 0.1 %
 
                 /// Diameter, length: internal representation in mm
-                case Unit.mm:       return v;               /// 1 mm
-                case Unit.cm:       return 0.1 * v;         /// 1 cm = 10 mm
-                case Unit.m:        return 0.001 * v;       /// 1 m = 1000 mm
-                case Unit.inch:     return v / 25.4;        /// 1 inch = 25.4 mm
-
+                case Unit.cm:       return 0.1 * v;             /// 1 cm = 10 mm
+                case Unit.inch:     return v / 25.4;            /// 1 inch = 25.4 mm
+                case Unit.dm:       return 0.01 * v;            /// 1 dm = 100 mm
+                case Unit.foot:     return v / 304.8;           /// 1 foot = 304.8 mm
+                case Unit.yard:     return v / 914.4;           /// 1 yard = 914,4 mm
+                case Unit.m:        return 0.001 * v;           /// 1 m = 1000 mm
+                                                                
 				/// Density: internal representation in kg/m3
-				case Unit.kgpm3:    return v;
 				case Unit.kgpl:     return 0.001 * v;
 
 				/// Energy, internal representation in Joul
-				case Unit.J:        return v;               /// 1 Joul
-				case Unit.kJ:       return 0.001 * v;       /// 1 kJ = 1000 J
-                case Unit.MJ:       return 0.000001 * v;    /// 1 kJ = 1000000 J
-                case Unit.Wh:       return v / 3600.0;      /// 1 Wh = 3600 J
-				case Unit.kWh:      return v / 3600000.0;   /// 1 kWh = 3600000 J
-                case Unit.MWh:      return v / 3600000000.0;/// 1 MWh = 3600000000 J
+				case Unit.kJ:       return 0.001 * v;           /// 1 kJ = 1000 J
+                case Unit.MJ:       return 0.000001 * v;        /// 1 kJ = 1000000 J
+                case Unit.Wh:       return v / 3600.0;          /// 1 Wh = 3600 J
+				case Unit.kWh:      return v / 3600000.0;       /// 1 kWh = 3600000 J
+                case Unit.MWh:      return v / 3600000000.0;    /// 1 MWh = 3600000000 J
 
+                /// Electrical conductivity
+                case Unit.mSpm:     return 0.1 * v;
+
+                /// Invert pulses
                 case Unit.kWhpp:
                 case Unit.lpp:
                 case Unit.dm3pp:
                 case Unit.lpdeg:
-                case Unit.dm3pdeg:  return ((v <= float.Epsilon) ? 0 : 1 / v);
+                case Unit.dm3pdeg:  return (v <= float.Epsilon) ? 0 : 1/v;
 
-                default:            return v;
+                default:            return v;                   /// Do not convert
             }
         }
 
@@ -407,71 +452,75 @@ namespace Config
             switch (units)
             {
                 /// Volume: internal representation in l
-                case Unit.dm3:
-                case Unit.l:        return v;               /// 1 liter
-                case Unit.m3:       return 1000 * v;        /// 1000 l
-                case Unit.gal_UK:   return 4.54609 * v;     /// 1 gal(UK) = 4.54609 l
-                case Unit.gal_US:   return 3.78541178 * v;  /// 1 gal(US) = 3.78541178 l
+                case Unit.ml:       return 0.001 * v;           /// 0.001 l
+                case Unit.USgal:    return 3.78541178 * v;      /// 1 gal(US) = 3.78541178 l
+                case Unit.UKgal:    return 4.54609 * v;         /// 1 gal(UK) = 4.54609 l
+                case Unit.cf:       return 28.316846592 * v;    /// 1 cubic foot = 28.316846592 l
+                case Unit.m3:       return 1000 * v;            /// 1000 l
 
                 /// Flow: internal representation in m3/h
-                case Unit.lph:      return 0.001 * v;       /// 1 liter/h
-                case Unit.m3ph:     return v;               /// 1 m3/h = 1000 l/h
+                case Unit.lph:      return 0.001 * v;           /// 1 l/h
+                case Unit.lpm:      return 0.06 * v;            /// 1 l/m
+                case Unit.lps:      return 3.6 * v;             /// 1 l/s
+                case Unit.USgalps:  return 13.627482408 * v;    /// 1 US gallon per second
+                case Unit.m3pm:     return 60 * v;              /// 1 m3/m
+                case Unit.cfs:      return 101.9406477312 * v;  /// 1 cubic foot per second
 
                 /// Mass: internal representation in kg
-                case Unit.g:        return 0.001 * v;       /// 1 g = 0.001 kg
-                case Unit.kg:       return v;               /// 1 kilogram
-                case Unit.t:        return 1000 * v;        /// 1 t = 1000 kg
-                case Unit.lb:       return 0.45359237 * v;  /// 1 lb = 0.45359237 kg
+                case Unit.g:        return 0.001 * v;           /// 1 g = 0.001 kg
+                case Unit.lb:       return 0.45359237 * v;      /// 1 lb = 0.45359237 kg
+                case Unit.t:        return 1000 * v;            /// 1 t = 1000 kg
 
                 /// Time or duration: internal representation in seconds [s] 
-                case Unit.s:        return v;
+                case Unit.ms:       return 0.001 * v;
                 case Unit.min:      return 60 * v;
                 case Unit.hour:     return 3600 * v;
-                case Unit.ms:       return v / 1000;
 
 				/// Temperature: internal representation in °C
-				case Unit.C:        return v;               /// degree Celsius (°C)
-                case Unit.F:        return 5 * (v-32) / 9;  /// degree Fahrenheit
-                case Unit.K:        return v - 273.15;      /// degree Kelvin
+                case Unit.F:        return 5 * (v - 32) / 9;    /// degree Fahrenheit
+                case Unit.K:        return v - 273.15;          /// degree Kelvin
 
                 /// Pressure: internal representation in  bar = 0.1 MPa
-                case Unit.Pa:       return 0.00001 * v;     /// 1 hPa = 100 Pa
-                case Unit.hPa:      return 0.001 * v;       /// 1 hPa = 100 Pa
-                case Unit.mbar:     return 0.001 * v;       /// 1 mbar = 1 hPa = 100 Pa
-                case Unit.kPa:      return 0.01 * v;        /// 1 kPa = 10 HPa
-                case Unit.bar:      return v;               /// 1 bar = 1000 mbar = 100000 Pa
-                case Unit.MPa:      return 10 * v;          /// 1 MPa = 10000 hPa
-                case Unit.inHg:     return 0.033864 * v;    /// 1 inHg = 33.864 hPa
+                case Unit.Pa:       return 0.00001 * v;         /// 1 hPa = 100 Pa
+                case Unit.hPa:      return 0.001 * v;           /// 1 hPa = 100 Pa
+                case Unit.mbar:     return 0.001 * v;           /// 1 mbar = 1 hPa = 100 Pa
+                case Unit.kPa:      return 0.01 * v;            /// 1 kPa = 10 HPa
+                case Unit.inHg:     return 0.033864 * v;        /// 1 inHg = 33.864 hPa
+                case Unit.psi:      return 0.0689475729 * v;    /// 1 psi = 0.0689475729 bar
+                case Unit.MPa:      return 10 * v;              /// 1 MPa = 10000 hPa
 
-                /// Error: internal representation in %
-                case Unit.Pct:      return v;               /// 1 %
-                case Unit.Promile:  return 0.1 * v;         /// 1 promile = 0.1 %
+                /// Relative error: internal representation in %
+                case Unit.Promile:  return 0.1 * v;             /// 1 promile = 0.1 %
 
                 /// Diameter, length: internal representation in mm
-                case Unit.mm:       return v;               /// 1 mm
-                case Unit.cm:       return 10 * v;          /// 1 cm = 10 mm
-                case Unit.m:        return 1000 * v;        /// 1 m = 1000 mm
-                case Unit.inch:     return 25.4 * v;        /// 1 inch = 25.4 mm
+                case Unit.cm:       return 10 * v;              /// 1 cm = 10 mm
+                case Unit.inch:     return 25.4 * v;            /// 1 inch = 25.4 mm
+                case Unit.dm:       return 100 * v;             /// 1 dm = 100 mm
+                case Unit.foot:     return 304.8 * v;           /// 1 foot = 304.8 mm
+                case Unit.yard:     return 914.4 * v;           /// 1 yard = 914,4 mm
+                case Unit.m:        return 1000 * v;            /// 1 m = 1000 mm
 
 				/// Density: internal representation in kg/m3
-				case Unit.kgpm3:    return v;
 				case Unit.kgpl:     return 1000 * v;
 
 				/// Energy, internal representation in Joul
-				case Unit.J:		return v;               /// 1 Joul
-				case Unit.kJ:		return 1000 * v;        /// 1 kJ = 1000 J
-                case Unit.MJ:       return 1000000 * v;     /// 1 kJ = 1000000 J
-                case Unit.Wh:       return 3600 * v;        /// 1 Wh = 3600 J
-				case Unit.kWh:		return 3600000 * v;     /// 1 kWh = 3600000 J
-                case Unit.MWh:      return 3600000000 * v;  /// 1 kWh = 3600000000 J
+				case Unit.kJ:		return 1000 * v;            /// 1 kJ = 1000 J
+                case Unit.MJ:       return 1000000 * v;         /// 1 kJ = 1000000 J
+                case Unit.Wh:       return 3600 * v;            /// 1 Wh = 3600 J
+				case Unit.kWh:		return 3600000 * v;         /// 1 kWh = 3600000 J
+                case Unit.MWh:      return 3600000000 * v;      /// 1 kWh = 3600000000 J
 
+                /// Electrical conductivity
+                case Unit.mSpm:     return 10 * v;
+
+                /// Invert
                 case Unit.kWhpp:
                 case Unit.lpp:
                 case Unit.dm3pp:
                 case Unit.lpdeg:
-                case Unit.dm3pdeg:  return ((v == 0) ? 0 : 1 / v);
+                case Unit.dm3pdeg:  return (v <= float.Epsilon) ? 0 : 1/v;
 
-                default:            return v;
+                default:            return v;                   /// Do not convert
             }
         }
 	}

DataStreamInterface/DataFrame.cs

@@ -0,0 +1,23 @@
+///
+/// Copyright (c) 2020 Sensus Slovensko a.s.
+///
+using System;
+
+namespace DataStreamInterface
+{
+    public class DataFrame
+    {
+        public readonly Int64 ID;          /// Frame ID
+        public readonly double Time;        /// Time stamp in units of time
+        public readonly double Volume;      /// Volume in units of volume
+        public readonly double[] Quantity;  /// An array of optional quantities in their respective units
+
+        public DataFrame(Int64 id, double time, double volume, double[] quantity)
+        {
+            ID = id;
+            Time = time;
+            Volume = volume;
+            Quantity = quantity;
+        }
+    }
+}

DataStreamInterface/DataStreamInterface.csproj

@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{7EBEEA14-91C4-48D7-AF0A-7A4BC3FF9A28}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>DataStreamInterface</RootNamespace>
+    <AssemblyName>DataStreamInterface</AssemblyName>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <TargetFrameworkProfile />
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.ComponentModel.Composition" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="DataFrame.cs" />
+    <Compile Include="Enums.cs" />
+    <Compile Include="IDataStreamMeter.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <Content Include="Doc\Software interface for datastream water meters.docx">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

DataStreamInterface/Enums.cs

@@ -0,0 +1,401 @@
+///
+/// Copyright (c) 2020 Sensus Slovensko a.s.
+///
+using System;
+
+namespace DataStreamInterface
+{
+    public enum Unit
+    {
+        None,
+
+        pulse,
+        degree,
+
+        /// Volume
+        ml,         ///   1 ml = 0.001 l
+        l,          /// * 1 liter
+        dm3,        ///   1 dm3 = 1 l
+        USgal,      ///   1 US gallon = 3.78541178 l
+        UKgal,      ///   1 imperial gallon = 4.54609 l
+        cf,         ///   1 cubic foot = 28.316846592 l
+        m3,         ///   1 m3 = 1000 l
+
+        /// Flow
+        lph,        ///   1 l/h = 0.001 m3/h
+        lpm,        ///   1 l/m = 60 l/h = 0.06 m3/h
+        m3ph,       /// * 1 m3/h
+        lps,        ///   1 liter/s = 3.6 m3/h
+        USgalps,    ///   1 US gallon per second = 13.627482408 m3/h
+        m3pm,       ///   1 m3/m = 60 m3/h
+        cfs,        ///   1 cubic foot per second = 101.9406477312 m3/h
+
+        /// Mass
+        g,          ///   0.001 kg
+        lb,         ///   0.45359237 kg
+        kg,         /// * 1 kilogram
+        t,          ///   1000 kg
+
+        /// Time
+        ms,         ///   1 ms = 0.001 s
+        s,          /// * 1 second = 1 s
+        min,        ///   1 min = 60 s
+        hour,       ///   1 hour = 60 min = 3600 s
+
+        /// Temperature
+        C,          /// * degree Celsius (°C)
+        F,          ///   degree Fahrenheit
+        K,          ///   degree Kelvin
+
+        /// Pressure
+        Pa,         ///   1 Pa = 0.01 hPa
+        hPa,        ///   1 hPa = 100 Pa
+        mbar,       ///   1 mbar = 1 hPa = 100 Pa
+        kPa,        ///   1 kPa = 10 HPa
+        inHg,       ///   1 inHg = 33.864 hPa
+        psi,        ///   1 psi = 0.0689475729 bar
+        bar,        /// * 1 Bar = 1000 mbar = 0.1 MPa = 100000 Pa
+        MPa,        ///   1 MPa = 10000 hPa
+
+        /// Humidity
+        RPct,       /// * 1 R%
+
+        /// Relative error
+        Promile,    ///   1 promile = 0.1 %
+        Pct,        /// * 1 %
+
+        /// Length
+        mm,         /// * 1 millimeter
+        cm,         ///   1 cm = 10 mm
+        inch,       ///   1 inch = 25.4 mm
+        dm,         ///   1 dm = 100 mm
+        foot,       ///   1 foot = 304.8 mm
+        yard,       ///   1 yard = 914.4 mm
+        m,          ///   1 m = 1000 mm
+
+        /// Density
+        kgpm3,		/// * 1 kg/m3 = 0.001 kg/l
+        kgpl,		///   1 kg/l = 1000 kg/m3
+
+        /// Energy
+        J,			/// * 1 Joul
+        kJ,			///   1 kJ = 1000 J
+        MJ,         ///   1 MJ = 1000000 J
+        Wh,			///   1 Wh = 3600 J
+        kWh,		///   1 kWh = 3600000 J
+        MWh,		///   1 MWh = 3600000000 J
+
+        /// Electrical conductivity
+        uSpcm,      /// * 1 uS/cm
+        mSpm,       ///   1 mS/m = 10 uS/cm
+
+        /// Meter coefficient - volume
+        ppl,		/// * 1 pulse/l
+        ppdm3,		///   1 pulse/dm3
+        degpl,		///   1 degree/l
+        degpdm3,	///   1 degree/dm3
+        lpp,		///   1 l/pulse
+        dm3pp,		///   1 dm3/pulse
+        lpdeg,		///   1 l/degree
+        dm3pdeg,	///   1 dm3/degree
+
+        /// Meter coefficient - energy
+        ppkWh,		/// * 1 pulse/kWh
+        kWhpp,		///   1 kWh/pulse
+    }
+
+    public enum Quantity
+    {
+        /// Quantities with units and conversions (double -> double)
+        Volume,
+        Flow,
+        Mass,
+        Time,
+        Temperature,
+        Pressure,
+        Humidity,
+        Error,
+        Length,
+        Density,
+        Energy,
+        Pulses,
+        PulsePerLtr,
+        PulsePerKWh,
+        Conductivity,
+
+        /// Quantities without units and conversions
+        Number,
+        String,
+        Boolean,
+        DateTime,
+        Enumerated,
+    }
+
+    public static class Units
+    {
+        public static bool IsDefaultUnit(Unit unit)
+        {
+            return unit == Unit.l || unit == Unit.m3ph || unit == Unit.kg || unit == Unit.s || unit == Unit.C ||
+                   unit == Unit.bar || unit == Unit.RPct || unit == Unit.Pct || unit == Unit.mm || unit == Unit.kgpm3 ||
+                   unit == Unit.J || unit == Unit.uSpcm || unit == Unit.ppl || unit == Unit.ppkWh;
+        }
+
+        public static Quantity GetQuantity(Unit units)
+        {
+            switch (units)
+            {
+                case Unit.pulse:
+                case Unit.degree:
+                    return Quantity.Pulses;
+
+                case Unit.ml:
+                case Unit.l:
+                case Unit.dm3:
+                case Unit.USgal:
+                case Unit.UKgal:
+                case Unit.cf:
+                case Unit.m3:
+                    return Quantity.Volume;
+
+                case Unit.lph:
+                case Unit.lpm:
+                case Unit.m3ph:
+                case Unit.lps:
+                case Unit.USgalps:
+                case Unit.m3pm:
+                case Unit.cfs:
+                    return Quantity.Flow;
+
+                case Unit.g:
+                case Unit.lb:
+                case Unit.kg:
+                case Unit.t:
+                    return Quantity.Mass;
+
+                case Unit.ms:
+                case Unit.s:
+                case Unit.min:
+                case Unit.hour:
+                    return Quantity.Time;
+
+                case Unit.C:
+                case Unit.F:
+                case Unit.K:
+                    return Quantity.Temperature;
+
+                case Unit.Pa:
+                case Unit.hPa:
+                case Unit.mbar:
+                case Unit.kPa:
+                case Unit.inHg:
+                case Unit.psi:
+                case Unit.bar:
+                case Unit.MPa:
+                    return Quantity.Pressure;
+
+                case Unit.RPct:
+                    return Quantity.Humidity;
+
+                case Unit.Promile:
+                case Unit.Pct:
+                    return Quantity.Error;
+
+                case Unit.mm:
+                case Unit.cm:
+                case Unit.inch:
+                case Unit.dm:
+                case Unit.foot:
+                case Unit.yard:
+                case Unit.m:
+                    return Quantity.Length;
+
+                case Unit.kgpm3:
+                case Unit.kgpl:
+                    return Quantity.Density;
+
+                case Unit.J:
+                case Unit.kJ:
+                case Unit.MJ:
+                case Unit.Wh:
+                case Unit.kWh:
+                case Unit.MWh:
+                    return Quantity.Energy;
+
+                case Unit.uSpcm:
+                case Unit.mSpm:
+                    return Quantity.Conductivity;
+
+                case Unit.ppl:
+                case Unit.ppdm3:
+                case Unit.degpl:
+                case Unit.degpdm3:
+                case Unit.lpp:
+                case Unit.dm3pp:
+                case Unit.lpdeg:
+                case Unit.dm3pdeg:
+                    return Quantity.PulsePerLtr;
+
+                case Unit.ppkWh:
+                case Unit.kWhpp:
+                    return Quantity.PulsePerKWh;
+
+                default:
+                    return Quantity.Number;
+            }
+        }
+
+        public static double ConvertTo(Unit units, double v)
+        {
+            switch (units)
+            {
+                /// Volume: internal representation in l
+                case Unit.ml:       return 1000 * v;            /// 1 l = 1000 ml
+                case Unit.USgal:    return 0.26417205 * v;      /// 1 gal(US) = 3.78541178 l
+                case Unit.UKgal:    return 0.21996925 * v;      /// 1 gal(UK) = 4.54609 l
+                case Unit.cf:       return 0.0353146667215 * v; /// 1 cubic foot = 28.316846592 l
+                case Unit.m3:       return 0.001 * v;           /// 1 m3 = 1000 l
+
+                /// Flow: internal representation in m3/h
+                case Unit.lph:      return 1000 * v;            /// 1 l/h
+                case Unit.lpm:      return v / 0.06;            /// 1 l/m
+                case Unit.lps:      return v / 3.6;             /// 1 l/s
+                case Unit.USgalps:  return 0.0733811257326 * v; /// 1 US gallon per second
+                case Unit.m3pm:     return v / 60;              /// 1 m3/m
+                case Unit.cfs:      return 0.009809629644858 * v; /// 1 cubic foot per second
+
+                /// Mass: internal representation in kg
+                case Unit.g:        return 1000 * v;            /// 1 g = 0.001 kg
+                case Unit.lb:       return 2.2046226 * v;       /// 1 lb = 0.45359237 kg
+                case Unit.t:        return 0.001 * v;           /// 1 t = 1000 kg
+
+                /// Time or duration: internal representation in seconds [s] 
+                case Unit.ms:       return 1000 * v;
+                case Unit.min:      return v / 60;
+                case Unit.hour:     return v / 3600;
+
+                /// Temperature: internal representation in °C
+                case Unit.F:        return 1.8 * v + 32;        /// degree Fahrenheit
+                case Unit.K:        return v + 273.15;          /// degree Kelvin
+
+                /// Pressure: internal representation in  bar = 0.1 MPa
+                case Unit.Pa:       return 100000 * v;
+                case Unit.hPa:      return 1000 * v;            /// 1 hPa = 100 Pa
+                case Unit.mbar:     return 1000 * v;            /// 1 mbar = 1 hPa = 100 Pa
+                case Unit.kPa:      return 100 * v;             /// 1 kPa = 10 HPa
+                case Unit.inHg:     return 29.53 * v;           /// 1 inHg =
+                case Unit.psi:      return 14.5037738 * v;      /// 1 psi =
+                case Unit.MPa:      return 0.1 * v;             /// 1 MPa = 10000 hPa
+
+                /// Relative error: internal representation in %
+                case Unit.Promile:  return 10 * v;              /// 1 promile = 0.1 %
+
+                /// Diameter, length: internal representation in mm
+                case Unit.cm:       return 0.1 * v;             /// 1 cm = 10 mm
+                case Unit.inch:     return v / 25.4;            /// 1 inch = 25.4 mm
+                case Unit.dm:       return 0.01 * v;            /// 1 dm = 100 mm
+                case Unit.foot:     return v / 304.8;           /// 1 foot = 304.8 mm
+                case Unit.yard:     return v / 914.4;           /// 1 yard = 914,4 mm
+                case Unit.m:        return 0.001 * v;           /// 1 m = 1000 mm
+
+                /// Density: internal representation in kg/m3
+                case Unit.kgpl:     return 0.001 * v;
+
+                /// Energy, internal representation in Joul
+                case Unit.kJ:       return 0.001 * v;           /// 1 kJ = 1000 J
+                case Unit.MJ:       return 0.000001 * v;        /// 1 kJ = 1000000 J
+                case Unit.Wh:       return v / 3600.0;          /// 1 Wh = 3600 J
+                case Unit.kWh:      return v / 3600000.0;       /// 1 kWh = 3600000 J
+                case Unit.MWh:      return v / 3600000000.0;    /// 1 MWh = 3600000000 J
+
+                /// Electrical conductivity
+                case Unit.mSpm:     return 0.1 * v;
+
+                /// Invert pulses
+                case Unit.kWhpp:
+                case Unit.lpp:
+                case Unit.dm3pp:
+                case Unit.lpdeg:
+                case Unit.dm3pdeg:  return (v <= float.Epsilon) ? 0 : 1/v;
+
+                default:            return v;                   /// Do not convert
+            }
+        }
+
+        public static double ConvertFrom(Unit units, double v)
+        {
+            switch (units)
+            {
+                /// Volume: internal representation in l
+                case Unit.ml:       return 0.001 * v;           /// 0.001 l
+                case Unit.USgal:    return 3.78541178 * v;      /// 1 gal(US) = 3.78541178 l
+                case Unit.UKgal:    return 4.54609 * v;         /// 1 gal(UK) = 4.54609 l
+                case Unit.cf:       return 28.316846592 * v;    /// 1 cubic foot = 28.316846592 l
+                case Unit.m3:       return 1000 * v;            /// 1000 l
+
+                /// Flow: internal representation in m3/h
+                case Unit.lph:      return 0.001 * v;           /// 1 l/h
+                case Unit.lpm:      return 0.06 * v;            /// 1 l/m
+                case Unit.lps:      return 3.6 * v;             /// 1 l/s
+                case Unit.USgalps:  return 13.627482408 * v;    /// 1 US gallon per second
+                case Unit.m3pm:     return 60 * v;              /// 1 m3/m
+                case Unit.cfs:      return 101.9406477312 * v;  /// 1 cubic foot per second
+
+                /// Mass: internal representation in kg
+                case Unit.g:        return 0.001 * v;           /// 1 g = 0.001 kg
+                case Unit.lb:       return 0.45359237 * v;      /// 1 lb = 0.45359237 kg
+                case Unit.t:        return 1000 * v;            /// 1 t = 1000 kg
+
+                /// Time or duration: internal representation in seconds [s] 
+                case Unit.ms:       return 0.001 * v;
+                case Unit.min:      return 60 * v;
+                case Unit.hour:     return 3600 * v;
+
+                /// Temperature: internal representation in °C
+                case Unit.F:        return 5 * (v - 32) / 9;    /// degree Fahrenheit
+                case Unit.K:        return v - 273.15;          /// degree Kelvin
+
+                /// Pressure: internal representation in  bar = 0.1 MPa
+                case Unit.Pa:       return 0.00001 * v;         /// 1 hPa = 100 Pa
+                case Unit.hPa:      return 0.001 * v;           /// 1 hPa = 100 Pa
+                case Unit.mbar:     return 0.001 * v;           /// 1 mbar = 1 hPa = 100 Pa
+                case Unit.kPa:      return 0.01 * v;            /// 1 kPa = 10 HPa
+                case Unit.inHg:     return 0.033864 * v;        /// 1 inHg = 33.864 hPa
+                case Unit.psi:      return 0.0689475729 * v;    /// 1 psi = 0.0689475729 bar
+                case Unit.MPa:      return 10 * v;              /// 1 MPa = 10000 hPa
+
+                /// Relative error: internal representation in %
+                case Unit.Promile:  return 0.1 * v;             /// 1 promile = 0.1 %
+
+                /// Diameter, length: internal representation in mm
+                case Unit.cm:       return 10 * v;              /// 1 cm = 10 mm
+                case Unit.inch:     return 25.4 * v;            /// 1 inch = 25.4 mm
+                case Unit.dm:       return 100 * v;             /// 1 dm = 100 mm
+                case Unit.foot:     return 304.8 * v;           /// 1 foot = 304.8 mm
+                case Unit.yard:     return 914.4 * v;           /// 1 yard = 914,4 mm
+                case Unit.m:        return 1000 * v;            /// 1 m = 1000 mm
+
+                /// Density: internal representation in kg/m3
+                case Unit.kgpl:     return 1000 * v;
+
+                /// Energy, internal representation in Joul
+                case Unit.kJ:       return 1000 * v;            /// 1 kJ = 1000 J
+                case Unit.MJ:       return 1000000 * v;         /// 1 kJ = 1000000 J
+                case Unit.Wh:       return 3600 * v;            /// 1 Wh = 3600 J
+                case Unit.kWh:      return 3600000 * v;         /// 1 kWh = 3600000 J
+                case Unit.MWh:      return 3600000000 * v;      /// 1 kWh = 3600000000 J
+
+                /// Electrical conductivity
+                case Unit.mSpm:     return 10 * v;
+
+                /// Invert
+                case Unit.kWhpp:
+                case Unit.lpp:
+                case Unit.dm3pp:
+                case Unit.lpdeg:
+                case Unit.dm3pdeg:  return (v <= float.Epsilon) ? 0 : 1/v;
+
+                default:            return v;                   /// Do not convert
+            }
+        }
+	}
+}

DataStreamInterface/IDataStreamMeter.cs

@@ -0,0 +1,140 @@
+///
+/// Copyright (c) 2020 Sensus Slovensko a.s.
+///
+using System;
+
+namespace DataStreamInterface
+{
+    public interface IDataStreamMeter
+    {
+        /// <summary>
+        /// Returns count of water meters supported by the data stream component
+        /// </summary>
+        /// <returns>Water meters count</returns>
+        int GetMetersCount();
+
+        /// <summary>
+        /// Get state of the connected data stream meter
+        /// </summary>
+        /// <param name="meterIx">Index of the meter in range 0 .. (GetMetersCount() - 1)</param>
+        /// <param name="state">Current state of the meter</param>
+        /// <param name="parameter">Current extra parameter of the meter</param>
+        /// <returns>true when successful</returns>
+        bool GetState(int meterIx, out int state, out string parameter);
+
+        /// <summary>
+        /// Set state of the connected data stream meter
+        /// </summary>
+        /// <param name="meterIx">Index of the meter in range 0 .. (GetMetersCount() - 1)</param>
+        /// <param name="state">Required state of the meter</param>
+        /// <param name="parameter">Required extra parameter of the meter</param>
+        /// <returns>true when successful</returns>
+        bool SetState(int meterIx, int state, string parameter);
+
+        bool SetStateAll(int state, string parameter);
+
+        /// <summary>
+        /// Establish connection with a data stream meter
+        /// </summary>
+        /// <param name="meterIx">Index of the meter in range 0 .. (GetMetersCount() - 1)</param>
+        /// <param name="connectionParameters">Connection parameters</param>
+        /// <param name="meterId">Meter ID (e.g. serial number)</param>
+        /// <returns>true when successful</returns>
+        bool OpenConnection(int meterIx, string connectionParameters, out string meterId);
+
+        /// <summary>
+        /// Stars saving measurement results into internal data structures of the component.
+        /// Each data frame obtains a unique ID.
+        /// The very first data fraim obrains ID = 0.
+        /// </summary>
+        /// <param name="meterIx">Index of the meter in range 0 .. (GetMetersCount() - 1)</param>
+        /// <returns>true when successful</returns>
+        bool StartMeasurement(int meterIx);
+
+        bool StartMeasurementAll();
+
+        /// <summary>
+        /// Stops saving measurement results into internal data structures of the component.
+        /// Updates ID of the last date frame received from the meter.
+        /// </summary>
+        /// <param name="meterIx">Index of the meter in range 0 .. (GetMetersCount() - 1)</param>
+        /// <param name="storedFramesCount">Number of stored date frames</param>
+        /// <returns>true when successful</returns>
+        bool StopMeasurement(int meterIx, out Int64 storedFramesCount);
+
+        bool StopMeasurementAll(out Int64[] storedFramesCounts);
+
+        /// <summary>
+        /// Closes connection with the data stream meter
+        /// </summary>
+        /// <param name="meterIx">Index of the meter in range 0 .. (GetMetersCount() - 1)</param>
+        /// <returns>true when successful</returns>
+        bool CloseConnection(int meterIx);
+
+        bool CloseConnectionAll();
+
+        /// <summary>
+        /// This function is called when TBF program is shutting down.
+        /// </summary>
+        /// <returns>true when successful</returns>
+        bool Shutdown();
+
+        ///------------------------------------------------
+        /// Units of time, volume and optional quantities
+        ///------------------------------------------------
+
+        /// <summary>
+        /// Returns time units (s, ms, ...)
+        /// </summary>
+        Unit GetTimeUnits();
+
+        /// <summary>
+        /// Returns units of volume (ml, l, ...)
+        /// </summary>
+        Unit GetVolumeUnits();
+
+        ///-----------------------------------------------
+        /// Optional quantities: count, units, captions
+        ///-----------------------------------------------
+
+        /// <summary>
+        /// Returns count of optional quantities in each data frame
+        /// </summary>
+        /// <returns>Count of optional quantities</returns>
+        int GetQuantitiesCount();
+
+        /// <summary>
+        /// Returns units of the specified quantity
+        /// </summary>
+        /// <param name="quanityNr">Zero based quantity number 0 .. quantites count-1</param>
+        Unit GetQuantityUnits(int quantityNr);
+
+        /// <summary>
+        /// Returns caption of the specified quantity
+        /// </summary>
+        /// <param name="quanityNr">Zero based quantity number 0 .. quantites count-1</param>
+        string GetQuantityCaption(int quantityNr);
+
+        ///---------------------------
+        /// Datastream data exchange
+        ///---------------------------
+
+        /// <summary>
+        /// Retuns 'count' data frames starting with data frame with ID = 'id' 
+        /// </summary>
+        /// <param name="meterIx">Index of the meter in range 0 .. (GetMetersCount() - 1)</param>
+        /// <param name="id">First frame ID</param>
+        /// <param name="count">Frames count</param>
+        /// <returns>Selected data frames</returns>
+        DataFrame[] GetFrames(int meterIx, Int64 id, int count);
+
+        /// <summary>
+        /// Returns ID of the data frame where time equals or exceeds the specified time.
+        /// When time of the first frame (ID=0) is larger then specified time, function returns 0.
+        /// </summary>
+        /// <param name="meterIx">Index of the meter in range 0 .. (GetMetersCount() - 1)</param>
+        /// <param name="time">Time</param>
+        /// <returns>ID of the data frame at or after the pecified time</returns>
+        Int64 GetID(int meterIx, double time);
+    }
+}

DataStreamInterface/Properties/AssemblyInfo.cs

@@ -0,0 +1,38 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using System.Resources;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("DataStreamInterface")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("DataStreamInterface")]
+[assembly: AssemblyCopyright("Copyright ©  2020")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("e44458ee-b635-4d7c-a763-20054399e817")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
+[assembly: NeutralResourcesLanguageAttribute("en")]

DataStreamInterfaceTest/ActivityLog.cs

@@ -0,0 +1,36 @@
+using System;
+using System.Text;
+using System.Windows.Forms;
+
+namespace DataStreamInterfaceTest
+{
+    public class ActivityLog
+    {
+        const int LinesCount = 50;
+
+        TextBox textBox;
+        string[] lines;
+        string activity;
+
+        public ActivityLog(TextBox textBox)
+        {
+            this.textBox = textBox;
+            lines = new string[LinesCount];
+            for (int i = 0; i < LinesCount; i++) lines[i] = string.Empty;
+        }
+
+        public void Print(string log)
+        {
+            for (int i = LinesCount - 1; i > 0; i--) lines[i] = lines[i - 1];
+            lines[0] = log;
+            DisplayLines();
+        }
+
+        private void DisplayLines()
+        {
+            StringBuilder sb = new StringBuilder();
+            foreach (var line in lines) sb.AppendLine(line);
+            textBox.Text = sb.ToString();
+        }
+    }
+}

DataStreamInterfaceTest/App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>

DataStreamInterfaceTest/DataStreamInterfaceTest.csproj

@@ -0,0 +1,134 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{1D1EEF9C-7F41-43D3-BD09-5054D00F7A23}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>DataStreamInterfaceTest</RootNamespace>
+    <AssemblyName>DataStreamInterfaceTest</AssemblyName>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.ComponentModel.Composition" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Deployment" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="ActivityLog.cs" />
+    <Compile Include="DemoMainWnd.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="DemoMainWnd.Designer.cs">
+      <DependentUpon>DemoMainWnd.cs</DependentUpon>
+    </Compile>
+    <Compile Include="GetDblValueDlg.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="GetDblValueDlg.designer.cs">
+      <DependentUpon>GetDblValueDlg.cs</DependentUpon>
+    </Compile>
+    <Compile Include="GetFrameBoundariesDlg.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="GetFrameBoundariesDlg.designer.cs">
+      <DependentUpon>GetFrameBoundariesDlg.cs</DependentUpon>
+    </Compile>
+    <Compile Include="GetIntegerNumberDlg.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="GetIntegerNumberDlg.Designer.cs">
+      <DependentUpon>GetIntegerNumberDlg.cs</DependentUpon>
+    </Compile>
+    <Compile Include="GetStateDlg.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="GetStateDlg.designer.cs">
+      <DependentUpon>GetStateDlg.cs</DependentUpon>
+    </Compile>
+    <Compile Include="LviIDComparer.cs" />
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <EmbeddedResource Include="DemoMainWnd.resx">
+      <DependentUpon>DemoMainWnd.cs</DependentUpon>
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+    <EmbeddedResource Include="GetDblValueDlg.resx">
+      <DependentUpon>GetDblValueDlg.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="GetFrameBoundariesDlg.resx">
+      <DependentUpon>GetFrameBoundariesDlg.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="GetIntegerNumberDlg.resx">
+      <DependentUpon>GetIntegerNumberDlg.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="GetStateDlg.resx">
+      <DependentUpon>GetStateDlg.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+    <Compile Include="Properties\Resources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Resources.resx</DependentUpon>
+    </Compile>
+    <None Include="Properties\Settings.settings">
+      <Generator>SettingsSingleFileGenerator</Generator>
+      <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+    </None>
+    <Compile Include="Properties\Settings.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Settings.settings</DependentUpon>
+      <DesignTimeSharedInput>True</DesignTimeSharedInput>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\DataStreamInterface\DataStreamInterface.csproj">
+      <Project>{7ebeea14-91c4-48d7-af0a-7a4bc3ff9a28}</Project>
+      <Name>DataStreamInterface</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

DataStreamInterfaceTest/DemoMainWnd.Designer.cs

@@ -0,0 +1,380 @@
+namespace DataStreamInterfaceTest
+{
+    partial class DemoMainWnd
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.splitContainer1 = new System.Windows.Forms.SplitContainer();
+            this.getIDButton = new System.Windows.Forms.Button();
+            this.getFramesButton = new System.Windows.Forms.Button();
+            this.measurementLabel = new System.Windows.Forms.Label();
+            this.stateLabel = new System.Windows.Forms.Label();
+            this.capabilitiesLabel = new System.Windows.Forms.Label();
+            this.getQuantityUnitsButton = new System.Windows.Forms.Button();
+            this.getQuantityCaptionButton = new System.Windows.Forms.Button();
+            this.getQuantitiesCountButton = new System.Windows.Forms.Button();
+            this.getVolumeUnitsButton = new System.Windows.Forms.Button();
+            this.getTimeUnitsButton = new System.Windows.Forms.Button();
+            this.setStateButton = new System.Windows.Forms.Button();
+            this.getStateButton = new System.Windows.Forms.Button();
+            this.stopMeasurementButton = new System.Windows.Forms.Button();
+            this.startMeasurementButton = new System.Windows.Forms.Button();
+            this.closeConnectionButton = new System.Windows.Forms.Button();
+            this.openConnectionButton = new System.Windows.Forms.Button();
+            this.splitContainer2 = new System.Windows.Forms.SplitContainer();
+            this.logsTextBox = new System.Windows.Forms.TextBox();
+            this.dataTabControl = new System.Windows.Forms.TabControl();
+            this.tabPage1 = new System.Windows.Forms.TabPage();
+            this.framesListView = new System.Windows.Forms.ListView();
+            this.tabPage2 = new System.Windows.Forms.TabPage();
+            ((System.ComponentModel.ISupportInitialize)(this.splitContainer1)).BeginInit();
+            this.splitContainer1.Panel1.SuspendLayout();
+            this.splitContainer1.Panel2.SuspendLayout();
+            this.splitContainer1.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)(this.splitContainer2)).BeginInit();
+            this.splitContainer2.Panel1.SuspendLayout();
+            this.splitContainer2.Panel2.SuspendLayout();
+            this.splitContainer2.SuspendLayout();
+            this.dataTabControl.SuspendLayout();
+            this.tabPage1.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // splitContainer1
+            // 
+            this.splitContainer1.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.splitContainer1.FixedPanel = System.Windows.Forms.FixedPanel.Panel1;
+            this.splitContainer1.IsSplitterFixed = true;
+            this.splitContainer1.Location = new System.Drawing.Point(0, 0);
+            this.splitContainer1.Name = "splitContainer1";
+            // 
+            // splitContainer1.Panel1
+            // 
+            this.splitContainer1.Panel1.Controls.Add(this.getIDButton);
+            this.splitContainer1.Panel1.Controls.Add(this.getFramesButton);
+            this.splitContainer1.Panel1.Controls.Add(this.measurementLabel);
+            this.splitContainer1.Panel1.Controls.Add(this.stateLabel);
+            this.splitContainer1.Panel1.Controls.Add(this.capabilitiesLabel);
+            this.splitContainer1.Panel1.Controls.Add(this.getQuantityUnitsButton);
+            this.splitContainer1.Panel1.Controls.Add(this.getQuantityCaptionButton);
+            this.splitContainer1.Panel1.Controls.Add(this.getQuantitiesCountButton);
+            this.splitContainer1.Panel1.Controls.Add(this.getVolumeUnitsButton);
+            this.splitContainer1.Panel1.Controls.Add(this.getTimeUnitsButton);
+            this.splitContainer1.Panel1.Controls.Add(this.setStateButton);
+            this.splitContainer1.Panel1.Controls.Add(this.getStateButton);
+            this.splitContainer1.Panel1.Controls.Add(this.stopMeasurementButton);
+            this.splitContainer1.Panel1.Controls.Add(this.startMeasurementButton);
+            this.splitContainer1.Panel1.Controls.Add(this.closeConnectionButton);
+            this.splitContainer1.Panel1.Controls.Add(this.openConnectionButton);
+            // 
+            // splitContainer1.Panel2
+            // 
+            this.splitContainer1.Panel2.Controls.Add(this.splitContainer2);
+            this.splitContainer1.Size = new System.Drawing.Size(826, 583);
+            this.splitContainer1.SplitterDistance = 150;
+            this.splitContainer1.TabIndex = 0;
+            // 
+            // getIDButton
+            // 
+            this.getIDButton.Location = new System.Drawing.Point(12, 480);
+            this.getIDButton.Name = "getIDButton";
+            this.getIDButton.Size = new System.Drawing.Size(128, 24);
+            this.getIDButton.TabIndex = 12;
+            this.getIDButton.Text = "Get ID";
+            this.getIDButton.UseVisualStyleBackColor = true;
+            this.getIDButton.Click += new System.EventHandler(this.getIDButton_Click);
+            // 
+            // getFramesButton
+            // 
+            this.getFramesButton.Location = new System.Drawing.Point(12, 450);
+            this.getFramesButton.Name = "getFramesButton";
+            this.getFramesButton.Size = new System.Drawing.Size(128, 24);
+            this.getFramesButton.TabIndex = 11;
+            this.getFramesButton.Text = "Get frames";
+            this.getFramesButton.UseVisualStyleBackColor = true;
+            this.getFramesButton.Click += new System.EventHandler(this.getFramesButton_Click);
+            // 
+            // measurementLabel
+            // 
+            this.measurementLabel.AutoSize = true;
+            this.measurementLabel.Location = new System.Drawing.Point(12, 374);
+            this.measurementLabel.Name = "measurementLabel";
+            this.measurementLabel.Size = new System.Drawing.Size(74, 13);
+            this.measurementLabel.TabIndex = 15;
+            this.measurementLabel.Text = "Measurement:";
+            // 
+            // stateLabel
+            // 
+            this.stateLabel.AutoSize = true;
+            this.stateLabel.Location = new System.Drawing.Point(12, 194);
+            this.stateLabel.Name = "stateLabel";
+            this.stateLabel.Size = new System.Drawing.Size(112, 13);
+            this.stateLabel.TabIndex = 14;
+            this.stateLabel.Text = "State and connection:";
+            // 
+            // capabilitiesLabel
+            // 
+            this.capabilitiesLabel.AutoSize = true;
+            this.capabilitiesLabel.Location = new System.Drawing.Point(12, 9);
+            this.capabilitiesLabel.Name = "capabilitiesLabel";
+            this.capabilitiesLabel.Size = new System.Drawing.Size(63, 13);
+            this.capabilitiesLabel.TabIndex = 13;
+            this.capabilitiesLabel.Text = "Capabilities:";
+            // 
+            // getQuantityUnitsButton
+            // 
+            this.getQuantityUnitsButton.Location = new System.Drawing.Point(12, 145);
+            this.getQuantityUnitsButton.Name = "getQuantityUnitsButton";
+            this.getQuantityUnitsButton.Size = new System.Drawing.Size(128, 24);
+            this.getQuantityUnitsButton.TabIndex = 4;
+            this.getQuantityUnitsButton.Text = "Get quantity units";
+            this.getQuantityUnitsButton.UseVisualStyleBackColor = true;
+            this.getQuantityUnitsButton.Click += new System.EventHandler(this.getQuantityUnitsButton_Click);
+            // 
+            // getQuantityCaptionButton
+            // 
+            this.getQuantityCaptionButton.Location = new System.Drawing.Point(12, 115);
+            this.getQuantityCaptionButton.Name = "getQuantityCaptionButton";
+            this.getQuantityCaptionButton.Size = new System.Drawing.Size(128, 24);
+            this.getQuantityCaptionButton.TabIndex = 3;
+            this.getQuantityCaptionButton.Text = "Get quantity caption";
+            this.getQuantityCaptionButton.UseVisualStyleBackColor = true;
+            this.getQuantityCaptionButton.Click += new System.EventHandler(this.getQuantityCaptionButton_Click);
+            // 
+            // getQuantitiesCountButton
+            // 
+            this.getQuantitiesCountButton.Location = new System.Drawing.Point(12, 85);
+            this.getQuantitiesCountButton.Name = "getQuantitiesCountButton";
+            this.getQuantitiesCountButton.Size = new System.Drawing.Size(128, 24);
+            this.getQuantitiesCountButton.TabIndex = 2;
+            this.getQuantitiesCountButton.Text = "Get quantities count";
+            this.getQuantitiesCountButton.UseVisualStyleBackColor = true;
+            this.getQuantitiesCountButton.Click += new System.EventHandler(this.getQuantitiesCountButton_Click);
+            // 
+            // getVolumeUnitsButton
+            // 
+            this.getVolumeUnitsButton.Location = new System.Drawing.Point(12, 55);
+            this.getVolumeUnitsButton.Name = "getVolumeUnitsButton";
+            this.getVolumeUnitsButton.Size = new System.Drawing.Size(128, 24);
+            this.getVolumeUnitsButton.TabIndex = 1;
+            this.getVolumeUnitsButton.Text = "Get volume units";
+            this.getVolumeUnitsButton.UseVisualStyleBackColor = true;
+            this.getVolumeUnitsButton.Click += new System.EventHandler(this.getVolumeUnitsButton_Click);
+            // 
+            // getTimeUnitsButton
+            // 
+            this.getTimeUnitsButton.Location = new System.Drawing.Point(12, 25);
+            this.getTimeUnitsButton.Name = "getTimeUnitsButton";
+            this.getTimeUnitsButton.Size = new System.Drawing.Size(128, 24);
+            this.getTimeUnitsButton.TabIndex = 0;
+            this.getTimeUnitsButton.Text = "Get time units";
+            this.getTimeUnitsButton.UseVisualStyleBackColor = true;
+            this.getTimeUnitsButton.Click += new System.EventHandler(this.getTimeUnitsButton_Click);
+            // 
+            // setStateButton
+            // 
+            this.setStateButton.Location = new System.Drawing.Point(12, 315);
+            this.setStateButton.Name = "setStateButton";
+            this.setStateButton.Size = new System.Drawing.Size(128, 24);
+            this.setStateButton.TabIndex = 8;
+            this.setStateButton.Text = "Set state";
+            this.setStateButton.UseVisualStyleBackColor = true;
+            this.setStateButton.Click += new System.EventHandler(this.setStateButton_Click);
+            // 
+            // getStateButton
+            // 
+            this.getStateButton.Location = new System.Drawing.Point(12, 285);
+            this.getStateButton.Name = "getStateButton";
+            this.getStateButton.Size = new System.Drawing.Size(128, 24);
+            this.getStateButton.TabIndex = 7;
+            this.getStateButton.Text = "Get state";
+            this.getStateButton.UseVisualStyleBackColor = true;
+            this.getStateButton.Click += new System.EventHandler(this.getStateButton_Click);
+            // 
+            // stopMeasurementButton
+            // 
+            this.stopMeasurementButton.Location = new System.Drawing.Point(12, 420);
+            this.stopMeasurementButton.Name = "stopMeasurementButton";
+            this.stopMeasurementButton.Size = new System.Drawing.Size(128, 24);
+            this.stopMeasurementButton.TabIndex = 10;
+            this.stopMeasurementButton.Text = "Stop measurement";
+            this.stopMeasurementButton.UseVisualStyleBackColor = true;
+            this.stopMeasurementButton.Click += new System.EventHandler(this.stopMeasurementButton_Click);
+            // 
+            // startMeasurementButton
+            // 
+            this.startMeasurementButton.Location = new System.Drawing.Point(12, 390);
+            this.startMeasurementButton.Name = "startMeasurementButton";
+            this.startMeasurementButton.Size = new System.Drawing.Size(128, 24);
+            this.startMeasurementButton.TabIndex = 9;
+            this.startMeasurementButton.Text = "Start measurement";
+            this.startMeasurementButton.UseVisualStyleBackColor = true;
+            this.startMeasurementButton.Click += new System.EventHandler(this.startMeasurementButton_Click);
+            // 
+            // closeConnectionButton
+            // 
+            this.closeConnectionButton.Location = new System.Drawing.Point(12, 240);
+            this.closeConnectionButton.Name = "closeConnectionButton";
+            this.closeConnectionButton.Size = new System.Drawing.Size(128, 24);
+            this.closeConnectionButton.TabIndex = 6;
+            this.closeConnectionButton.Text = "Close connection";
+            this.closeConnectionButton.UseVisualStyleBackColor = true;
+            this.closeConnectionButton.Click += new System.EventHandler(this.closeConnectionButton_Click);
+            // 
+            // openConnectionButton
+            // 
+            this.openConnectionButton.Location = new System.Drawing.Point(12, 210);
+            this.openConnectionButton.Name = "openConnectionButton";
+            this.openConnectionButton.Size = new System.Drawing.Size(128, 24);
+            this.openConnectionButton.TabIndex = 5;
+            this.openConnectionButton.Text = "Open connection";
+            this.openConnectionButton.UseVisualStyleBackColor = true;
+            this.openConnectionButton.Click += new System.EventHandler(this.openConnectionButton_Click);
+            // 
+            // splitContainer2
+            // 
+            this.splitContainer2.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.splitContainer2.Location = new System.Drawing.Point(0, 0);
+            this.splitContainer2.Name = "splitContainer2";
+            this.splitContainer2.Orientation = System.Windows.Forms.Orientation.Horizontal;
+            // 
+            // splitContainer2.Panel1
+            // 
+            this.splitContainer2.Panel1.Controls.Add(this.logsTextBox);
+            // 
+            // splitContainer2.Panel2
+            // 
+            this.splitContainer2.Panel2.Controls.Add(this.dataTabControl);
+            this.splitContainer2.Size = new System.Drawing.Size(672, 583);
+            this.splitContainer2.SplitterDistance = 222;
+            this.splitContainer2.TabIndex = 0;
+            // 
+            // logsTextBox
+            // 
+            this.logsTextBox.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.logsTextBox.Location = new System.Drawing.Point(0, 0);
+            this.logsTextBox.Multiline = true;
+            this.logsTextBox.Name = "logsTextBox";
+            this.logsTextBox.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
+            this.logsTextBox.Size = new System.Drawing.Size(672, 222);
+            this.logsTextBox.TabIndex = 0;
+            // 
+            // dataTabControl
+            // 
+            this.dataTabControl.Controls.Add(this.tabPage1);
+            this.dataTabControl.Controls.Add(this.tabPage2);
+            this.dataTabControl.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.dataTabControl.Location = new System.Drawing.Point(0, 0);
+            this.dataTabControl.Name = "dataTabControl";
+            this.dataTabControl.SelectedIndex = 0;
+            this.dataTabControl.Size = new System.Drawing.Size(672, 357);
+            this.dataTabControl.TabIndex = 0;
+            // 
+            // tabPage1
+            // 
+            this.tabPage1.Controls.Add(this.framesListView);
+            this.tabPage1.Location = new System.Drawing.Point(4, 22);
+            this.tabPage1.Name = "tabPage1";
+            this.tabPage1.Padding = new System.Windows.Forms.Padding(3);
+            this.tabPage1.Size = new System.Drawing.Size(664, 331);
+            this.tabPage1.TabIndex = 0;
+            this.tabPage1.Text = "Transferred frames";
+            this.tabPage1.UseVisualStyleBackColor = true;
+            // 
+            // framesListView
+            // 
+            this.framesListView.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.framesListView.GridLines = true;
+            this.framesListView.Location = new System.Drawing.Point(3, 3);
+            this.framesListView.Name = "framesListView";
+            this.framesListView.Size = new System.Drawing.Size(658, 325);
+            this.framesListView.TabIndex = 0;
+            this.framesListView.UseCompatibleStateImageBehavior = false;
+            this.framesListView.View = System.Windows.Forms.View.Details;
+            // 
+            // tabPage2
+            // 
+            this.tabPage2.Location = new System.Drawing.Point(4, 22);
+            this.tabPage2.Name = "tabPage2";
+            this.tabPage2.Padding = new System.Windows.Forms.Padding(3);
+            this.tabPage2.Size = new System.Drawing.Size(664, 331);
+            this.tabPage2.TabIndex = 1;
+            this.tabPage2.Text = "Graph";
+            this.tabPage2.UseVisualStyleBackColor = true;
+            // 
+            // DemoMainWnd
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(826, 583);
+            this.Controls.Add(this.splitContainer1);
+            this.Name = "DemoMainWnd";
+            this.Text = "Datastream interface test";
+            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.DemoMainWnd_FormClosing);
+            this.splitContainer1.Panel1.ResumeLayout(false);
+            this.splitContainer1.Panel1.PerformLayout();
+            this.splitContainer1.Panel2.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)(this.splitContainer1)).EndInit();
+            this.splitContainer1.ResumeLayout(false);
+            this.splitContainer2.Panel1.ResumeLayout(false);
+            this.splitContainer2.Panel1.PerformLayout();
+            this.splitContainer2.Panel2.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)(this.splitContainer2)).EndInit();
+            this.splitContainer2.ResumeLayout(false);
+            this.dataTabControl.ResumeLayout(false);
+            this.tabPage1.ResumeLayout(false);
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.SplitContainer splitContainer1;
+        private System.Windows.Forms.Button openConnectionButton;
+        private System.Windows.Forms.Button closeConnectionButton;
+        private System.Windows.Forms.Button stopMeasurementButton;
+        private System.Windows.Forms.Button startMeasurementButton;
+        private System.Windows.Forms.Button setStateButton;
+        private System.Windows.Forms.Button getStateButton;
+        private System.Windows.Forms.Button getQuantityUnitsButton;
+        private System.Windows.Forms.Button getQuantityCaptionButton;
+        private System.Windows.Forms.Button getQuantitiesCountButton;
+        private System.Windows.Forms.Button getVolumeUnitsButton;
+        private System.Windows.Forms.Button getTimeUnitsButton;
+        private System.Windows.Forms.Label measurementLabel;
+        private System.Windows.Forms.Label stateLabel;
+        private System.Windows.Forms.Label capabilitiesLabel;
+        private System.Windows.Forms.Button getIDButton;
+        private System.Windows.Forms.Button getFramesButton;
+        private System.Windows.Forms.SplitContainer splitContainer2;
+        private System.Windows.Forms.TextBox logsTextBox;
+        private System.Windows.Forms.TabControl dataTabControl;
+        private System.Windows.Forms.TabPage tabPage1;
+        private System.Windows.Forms.ListView framesListView;
+        private System.Windows.Forms.TabPage tabPage2;
+    }
+}
+

DataStreamInterfaceTest/DemoMainWnd.cs

@@ -0,0 +1,292 @@
+using System;
+using System.Text;
+using System.Windows.Forms;
+using DataStreamInterface;
+
+namespace DataStreamInterfaceTest
+{
+    public partial class DemoMainWnd : Form
+    {
+        IDataStreamMeter dataStreamMeter;
+
+        ActivityLog activityLog;
+
+        Unit timeUnits;
+        Unit volumeUnits;
+        int quantitiesCount;
+        string[] quantityCaption;
+        Unit[] quantityUnit;
+
+        Int64 storedFramesCount;
+        DataFrame[] transferredFrames;
+
+        public DemoMainWnd() : this(null) { }
+
+        public DemoMainWnd(IDataStreamMeter dataStreamMeter)
+        {
+            InitializeComponent();
+            this.dataStreamMeter = dataStreamMeter;
+            activityLog = new ActivityLog(logsTextBox);
+
+            framesListView.Columns.Add("ID", 100);
+            framesListView.Columns.Add("Time", 100);
+            framesListView.Columns.Add("Volume", 100);
+            framesListView.Columns.Add("Additional quantities", 300);
+            framesListView.ListViewItemSorter = new LviIDComparer();
+        }
+
+        void ShowNoMeterInterfaceMessage()
+        {
+            MessageBox.Show("No datastream meter interface");
+        }
+
+        private void getTimeUnitsButton_Click(object sender, EventArgs e)
+        {
+            if (dataStreamMeter == null)
+                ShowNoMeterInterfaceMessage();
+            else
+            {
+                timeUnits = dataStreamMeter.GetTimeUnits();
+                activityLog.Print(string.Format("Time units are {0}", timeUnits));
+            }
+        }
+
+        private void getVolumeUnitsButton_Click(object sender, EventArgs e)
+        {
+            if (dataStreamMeter == null)
+                ShowNoMeterInterfaceMessage();
+            else
+            {
+                volumeUnits = dataStreamMeter.GetVolumeUnits();
+                activityLog.Print(string.Format("Volume units are {0}", volumeUnits));
+            }
+        }
+
+        private void getQuantitiesCountButton_Click(object sender, EventArgs e)
+        {
+            if (dataStreamMeter == null)
+                ShowNoMeterInterfaceMessage();
+            else
+            {
+                int quantitesCountOri = quantitiesCount;
+                quantitiesCount = dataStreamMeter.GetQuantitiesCount();
+                activityLog.Print(string.Format("There are {0} additional quantites", quantitiesCount));
+
+                if (quantitesCountOri == 0)
+                {
+                    quantityUnit = new Unit[quantitiesCount];
+                    quantityCaption = new string[quantitiesCount];
+                    for (int i = 0; i < quantitiesCount; i++) quantityCaption[i] = string.Empty;
+                }
+                else if (quantitiesCount != quantitesCountOri)
+                {
+                    quantityUnit = new Unit[quantitiesCount];
+                    quantityCaption = new string[quantitiesCount];
+                    for (int i = 0; i < quantitiesCount; i++) quantityCaption[i] = string.Empty;
+
+                    activityLog.Print(string.Format("Quantities count changed during operation"));
+                    MessageBox.Show("Quantities count changed during operation", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
+                }
+            }
+        }
+
+        private void getQuantityCaptionButton_Click(object sender, EventArgs e)
+        {
+            if (dataStreamMeter == null)
+                ShowNoMeterInterfaceMessage();
+            else
+            {
+                GetIntegerNumberDlg dlg = new GetIntegerNumberDlg(string.Format("Enter index {0} .. {1}", 0, quantitiesCount - 1), 0, quantitiesCount - 1);
+                if (dlg.ShowDialog() == DialogResult.OK)
+                {
+                    quantityCaption[dlg.Number] = dataStreamMeter.GetQuantityCaption(dlg.Number);
+                    activityLog.Print(string.Format("Caption of quantity #{0} is {1}", dlg.Number, quantityCaption[dlg.Number]));
+                }
+            }
+        }
+
+        private void getQuantityUnitsButton_Click(object sender, EventArgs e)
+        {
+            if (dataStreamMeter == null)
+                ShowNoMeterInterfaceMessage();
+            else
+            {
+                GetIntegerNumberDlg dlg = new GetIntegerNumberDlg(string.Format("Enter index {0} .. {1}", 0, quantitiesCount - 1), 0, quantitiesCount - 1);
+                if (dlg.ShowDialog() == DialogResult.OK)
+                {
+                    quantityUnit[dlg.Number] = dataStreamMeter.GetQuantityUnits(dlg.Number);
+                    activityLog.Print(string.Format("Units of quantity #{0} are {1}", dlg.Number, quantityUnit[dlg.Number]));
+                }
+            }
+        }
+
+        private void openConnectionButton_Click(object sender, EventArgs e)
+        {
+            if (dataStreamMeter == null)
+                ShowNoMeterInterfaceMessage();
+            else
+            {
+                string meterId;
+                if (dataStreamMeter.OpenConnection(0, "no connection parameters", out meterId))
+                {
+                    activityLog.Print(string.Format("Connection established, meter ID is {0}", meterId));
+                }
+                else
+                {
+                    activityLog.Print("Failed to establish a connection");
+                }
+            }
+        }
+
+        private void closeConnectionButton_Click(object sender, EventArgs e)
+        {
+            if (dataStreamMeter == null)
+                ShowNoMeterInterfaceMessage();
+            else
+            {
+                if (dataStreamMeter.CloseConnection(0))
+                {
+                    framesListView.Items.Clear();
+                    activityLog.Print("Connection closed");
+                }
+                else
+                {
+                    activityLog.Print("Failed to close the connection");
+                }
+            }
+        }
+
+        private void DemoMainWnd_FormClosing(object sender, FormClosingEventArgs e)
+        {
+            if (dataStreamMeter == null)
+            {
+                dataStreamMeter.Shutdown();
+            }
+        }
+
+        private void getStateButton_Click(object sender, EventArgs e)
+        {
+            if (dataStreamMeter == null)
+                ShowNoMeterInterfaceMessage();
+            else
+            {
+                int state;
+                string parameter;
+                if (dataStreamMeter.GetState(0, out state, out parameter))
+                {
+                    activityLog.Print(string.Format("Water meter state is {0} / {1}", state, parameter));
+                }
+                else
+                {
+                    activityLog.Print("Failed to obtain the water meter state");
+                }
+            }
+        }
+
+        private void setStateButton_Click(object sender, EventArgs e)
+        {
+            if (dataStreamMeter == null)
+                ShowNoMeterInterfaceMessage();
+            else
+            {
+                GetStateDlg dlg = new GetStateDlg();
+                if (dlg.ShowDialog() == DialogResult.OK)
+                {
+                    if (dataStreamMeter.SetState(0, dlg.State, dlg.Parameter))
+                    {
+                        activityLog.Print(string.Format("Water meter state set to {0} / {1}", dlg.State, dlg.Parameter));
+                    }
+                    else
+                    {
+                        activityLog.Print(string.Format("Failed to set the water meter state to {0} / {1}", dlg.State, dlg.Parameter));
+                    }
+                }
+            }
+        }
+
+        private void startMeasurementButton_Click(object sender, EventArgs e)
+        {
+            if (dataStreamMeter == null)
+                ShowNoMeterInterfaceMessage();
+            else
+            {
+                if (dataStreamMeter.StartMeasurement(0))
+                {
+                    framesListView.Items.Clear();
+                    activityLog.Print(string.Format("Measurement started"));
+                }
+                else
+                {
+                    activityLog.Print("Failed to start a measurement");
+                }
+            }
+        }
+
+        private void stopMeasurementButton_Click(object sender, EventArgs e)
+        {
+            if (dataStreamMeter == null)
+                ShowNoMeterInterfaceMessage();
+            else
+            {
+                if (dataStreamMeter.StopMeasurement(0, out storedFramesCount))
+                {
+                    framesListView.Items.Clear();
+                    activityLog.Print(string.Format("Measurement sopped, {0} frames acquired", storedFramesCount));
+                }
+                else
+                {
+                    activityLog.Print("Failed to stop the measurement");
+                }
+            }
+        }
+
+        private void getFramesButton_Click(object sender, EventArgs e)
+        {
+            if (dataStreamMeter == null)
+                ShowNoMeterInterfaceMessage();
+            else
+            {
+                GetFrameBoundariesDlg dlg = new GetFrameBoundariesDlg("Enter frames range boundaries", 0, storedFramesCount - 1);
+                if (dlg.ShowDialog() != DialogResult.OK) return;
+                DataFrame[] frames = dataStreamMeter.GetFrames(0, dlg.From, Convert.ToInt32(dlg.To - dlg.From + 1));
+                {
+                    foreach (var frame in frames)
+                    {
+                        if (frame != null) framesListView.Items.Add(GetListViewItem(frame));
+                    }
+                }
+            }
+        }
+
+        private void getIDButton_Click(object sender, EventArgs e)
+        {
+            if (dataStreamMeter == null)
+                ShowNoMeterInterfaceMessage();
+            else
+            {
+                GetDblValueDlg dlg = new GetDblValueDlg("Enter time in seconds");
+                if (dlg.ShowDialog() == DialogResult.OK)
+                {
+                    Int64 id = dataStreamMeter.GetID(0, dlg.DblValue);
+                    activityLog.Print(string.Format("GetID({0}) returned {1}", dlg.DblValue, id));
+                }
+            }
+        }
+
+        ListViewItem GetListViewItem(DataFrame frame)
+        {
+            ListViewItem lvi = new ListViewItem(frame.ID.ToString());
+            lvi.SubItems.Add(frame.Time.ToString());
+            lvi.SubItems.Add(frame.Volume.ToString());
+            StringBuilder sb = new StringBuilder();
+            foreach (var quantity in frame.Quantity)
+            {
+                sb.Append(quantity.ToString());
+                sb.Append("  ");
+            }
+            lvi.SubItems.Add(sb.ToString());
+            lvi.Tag = frame;
+            return lvi;
+        }
+    }
+}

DataStreamInterfaceTest/GetDblValueDlg.Designer.cs

@@ -0,0 +1,88 @@
+namespace DataStreamInterfaceTest
+{
+    partial class GetDblValueDlg
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.valueTextBox = new System.Windows.Forms.TextBox();
+            this.okButton = new System.Windows.Forms.Button();
+            this.cancelButton = new System.Windows.Forms.Button();
+            this.SuspendLayout();
+            // 
+            // valueTextBox
+            // 
+            this.valueTextBox.Location = new System.Drawing.Point(35, 20);
+            this.valueTextBox.Name = "valueTextBox";
+            this.valueTextBox.Size = new System.Drawing.Size(94, 20);
+            this.valueTextBox.TabIndex = 0;
+            // 
+            // okButton
+            // 
+            this.okButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+            this.okButton.Location = new System.Drawing.Point(216, 16);
+            this.okButton.Name = "okButton";
+            this.okButton.Size = new System.Drawing.Size(75, 29);
+            this.okButton.TabIndex = 1;
+            this.okButton.Text = "OK";
+            this.okButton.UseVisualStyleBackColor = true;
+            this.okButton.Click += new System.EventHandler(this.okButton_Click);
+            // 
+            // cancelButton
+            // 
+            this.cancelButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+            this.cancelButton.DialogResult = System.Windows.Forms.DialogResult.Cancel;
+            this.cancelButton.Location = new System.Drawing.Point(306, 16);
+            this.cancelButton.Name = "cancelButton";
+            this.cancelButton.Size = new System.Drawing.Size(75, 29);
+            this.cancelButton.TabIndex = 2;
+            this.cancelButton.Text = "Cancel";
+            this.cancelButton.UseVisualStyleBackColor = true;
+            // 
+            // GetFlowDlg
+            // 
+            this.AcceptButton = this.okButton;
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.CancelButton = this.cancelButton;
+            this.ClientSize = new System.Drawing.Size(396, 58);
+            this.Controls.Add(this.cancelButton);
+            this.Controls.Add(this.okButton);
+            this.Controls.Add(this.valueTextBox);
+            this.Name = "GetFlowDlg";
+            this.Text = "Enter flow";
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.TextBox valueTextBox;
+        private System.Windows.Forms.Button okButton;
+        private System.Windows.Forms.Button cancelButton;
+    }
+}

DataStreamInterfaceTest/GetDblValueDlg.cs

@@ -0,0 +1,59 @@
+using System;
+using System.Globalization;
+using System.Windows.Forms;
+
+namespace DataStreamInterfaceTest
+{
+    public partial class GetDblValueDlg : Form
+    {
+        public double DblValue;
+
+        double lowerLimit;
+        double upperLimit;
+
+
+        public GetDblValueDlg()
+            : this("Enter flow in [m3/h] please")
+        {
+        }
+
+        public GetDblValueDlg(string title)
+            : this(title, 0, 100.0)
+        {
+        }
+
+        public GetDblValueDlg(string title, double lowerLimit, double upperLimit)
+        {
+            InitializeComponent();
+            this.Text = title;
+            this.lowerLimit = lowerLimit;
+            this.upperLimit = upperLimit;
+        }
+
+
+        private void okButton_Click(object sender, EventArgs e)
+        {
+            double val;
+            if (TryParseUDouble(valueTextBox.Text, out val))
+            {
+                DblValue = val;
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            else
+            {
+                MessageBox.Show("Invalid value");
+                DialogResult = DialogResult.None;
+            }
+        }
+
+        /// <summary>
+        /// Parse an unsigned double number
+        /// </summary>
+        bool TryParseUDouble(string text, out double result)
+        {
+            return double.TryParse(text, NumberStyles.AllowDecimalPoint, CultureInfo.CurrentCulture, out result) ||
+                   double.TryParse(text, NumberStyles.AllowDecimalPoint, CultureInfo.InvariantCulture, out result);
+        }
+    }
+}

DataStreamInterfaceTest/GetFrameBoundariesDlg.Designer.cs

@@ -0,0 +1,126 @@
+namespace DataStreamInterfaceTest
+{
+    partial class GetFrameBoundariesDlg
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.fromTextBox = new System.Windows.Forms.TextBox();
+            this.okButton = new System.Windows.Forms.Button();
+            this.cancelButton = new System.Windows.Forms.Button();
+            this.toTextBox = new System.Windows.Forms.TextBox();
+            this.fromLabel = new System.Windows.Forms.Label();
+            this.toLabel = new System.Windows.Forms.Label();
+            this.SuspendLayout();
+            // 
+            // fromTextBox
+            // 
+            this.fromTextBox.Location = new System.Drawing.Point(89, 16);
+            this.fromTextBox.Name = "fromTextBox";
+            this.fromTextBox.Size = new System.Drawing.Size(100, 20);
+            this.fromTextBox.TabIndex = 0;
+            // 
+            // okButton
+            // 
+            this.okButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+            this.okButton.Location = new System.Drawing.Point(225, 24);
+            this.okButton.Name = "okButton";
+            this.okButton.Size = new System.Drawing.Size(75, 36);
+            this.okButton.TabIndex = 1;
+            this.okButton.Text = "OK";
+            this.okButton.UseVisualStyleBackColor = true;
+            this.okButton.Click += new System.EventHandler(this.okButton_Click);
+            // 
+            // cancelButton
+            // 
+            this.cancelButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+            this.cancelButton.DialogResult = System.Windows.Forms.DialogResult.Cancel;
+            this.cancelButton.Location = new System.Drawing.Point(316, 24);
+            this.cancelButton.Name = "cancelButton";
+            this.cancelButton.Size = new System.Drawing.Size(75, 36);
+            this.cancelButton.TabIndex = 2;
+            this.cancelButton.Text = "Cancel";
+            this.cancelButton.UseVisualStyleBackColor = true;
+            // 
+            // toTextBox
+            // 
+            this.toTextBox.Location = new System.Drawing.Point(89, 46);
+            this.toTextBox.Name = "toTextBox";
+            this.toTextBox.Size = new System.Drawing.Size(100, 20);
+            this.toTextBox.TabIndex = 3;
+            // 
+            // fromLabel
+            // 
+            this.fromLabel.AutoSize = true;
+            this.fromLabel.Location = new System.Drawing.Point(12, 19);
+            this.fromLabel.Name = "fromLabel";
+            this.fromLabel.Size = new System.Drawing.Size(30, 13);
+            this.fromLabel.TabIndex = 4;
+            this.fromLabel.Text = "From";
+            // 
+            // toLabel
+            // 
+            this.toLabel.AutoSize = true;
+            this.toLabel.Location = new System.Drawing.Point(12, 49);
+            this.toLabel.Name = "toLabel";
+            this.toLabel.Size = new System.Drawing.Size(20, 13);
+            this.toLabel.TabIndex = 5;
+            this.toLabel.Text = "To";
+            // 
+            // GetFrameBoundariesDlg
+            // 
+            this.AcceptButton = this.okButton;
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.AutoSize = true;
+            this.CancelButton = this.cancelButton;
+            this.ClientSize = new System.Drawing.Size(419, 79);
+            this.ControlBox = false;
+            this.Controls.Add(this.toLabel);
+            this.Controls.Add(this.fromLabel);
+            this.Controls.Add(this.toTextBox);
+            this.Controls.Add(this.cancelButton);
+            this.Controls.Add(this.okButton);
+            this.Controls.Add(this.fromTextBox);
+            this.Name = "GetFrameBoundariesDlg";
+            this.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Hide;
+            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
+            this.Text = "Enter frames range boundaries";
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.TextBox fromTextBox;
+        private System.Windows.Forms.Button okButton;
+        private System.Windows.Forms.Button cancelButton;
+        private System.Windows.Forms.TextBox toTextBox;
+        private System.Windows.Forms.Label fromLabel;
+        private System.Windows.Forms.Label toLabel;
+    }
+}

DataStreamInterfaceTest/GetFrameBoundariesDlg.cs

@@ -0,0 +1,88 @@
+using System;
+using System.Windows.Forms;
+
+namespace DataStreamInterfaceTest
+{
+    public partial class GetFrameBoundariesDlg : Form
+    {
+        /// <summary>
+        /// Integer number entered in this form
+        /// </summary>
+        public Int64 From;
+        public Int64 To;
+
+        Int64 lowerLimit;
+        Int64 upperLimit;
+
+
+        /// <summary>
+        /// Default constructor
+        /// </summary>
+        public GetFrameBoundariesDlg()
+            : this("Enter state please")
+        {
+        }
+
+        /// <summary>
+        /// Constructor with a custom window title.
+        /// </summary>
+        /// <param name="title">Window title</param>
+        public GetFrameBoundariesDlg(string title)
+            : this(title, Int64.MinValue, Int64.MaxValue)
+        {
+        }
+
+        /// <summary>
+        /// Constructor with a custom window title, limits and non-empty initial value.
+        /// </summary>
+        /// <param name="title">Window title</param>
+        /// <param name="lowerLimit">Lower limit</param>
+        /// <param name="upperLimit">Upper limit</param>
+        /// <param name="initialValue">Initial value</param>
+        public GetFrameBoundariesDlg(string title, Int64 lowerLimit, Int64 upperLimit, int initialValue)
+            : this(title, lowerLimit, upperLimit)
+        {
+            fromTextBox.Text = initialValue.ToString();
+        }
+
+        /// <summary>
+        /// Constructor with a custom window title and lower/upper limits.
+        /// </summary>
+        /// <param name="title">Window title</param>
+        /// <param name="lowerLimit">Lower limit</param>
+        /// <param name="upperLimit">Upper limit</param>
+        public GetFrameBoundariesDlg(string title, Int64 lowerLimit, Int64 upperLimit)
+        {
+            InitializeComponent();
+            this.Text = title;
+            this.lowerLimit = lowerLimit;
+            this.upperLimit = upperLimit;
+        }
+
+
+        /// <summary>
+        /// OK button handler that verifies validity of the entered value.
+        /// </summary>
+        private void okButton_Click(object sender, EventArgs e)
+        {
+            Int64 from;
+            Int64 to;
+            if (Int64.TryParse(fromTextBox.Text, out from) && from >= lowerLimit && from <= upperLimit &&
+                Int64.TryParse(toTextBox.Text, out to) && to >= lowerLimit && to <= upperLimit &&
+                to >= from && to < from + Int32.MaxValue)
+            {
+                From = from;
+                To = to;
+                DialogResult = DialogResult.OK;
+            }
+            else
+            {
+                string message = (lowerLimit != 0 || upperLimit != Int32.MaxValue)
+                               ? string.Format("Invalid boundaries ({0}..{1})", lowerLimit, upperLimit)
+                               : "Invalid boundaries";
+                MessageBox.Show(message);
+                DialogResult = DialogResult.None;   /// Prevent closing this window
+            }
+        }
+    }
+}

DataStreamInterfaceTest/GetIntegerNumberDlg.Designer.cs

@@ -0,0 +1,90 @@
+namespace DataStreamInterfaceTest
+{
+    partial class GetIntegerNumberDlg
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.numberTextBox = new System.Windows.Forms.TextBox();
+            this.okButton = new System.Windows.Forms.Button();
+            this.cancelButton = new System.Windows.Forms.Button();
+            this.SuspendLayout();
+            // 
+            // numberTextBox
+            // 
+            this.numberTextBox.Location = new System.Drawing.Point(36, 16);
+            this.numberTextBox.Name = "numberTextBox";
+            this.numberTextBox.Size = new System.Drawing.Size(100, 20);
+            this.numberTextBox.TabIndex = 0;
+            // 
+            // okButton
+            // 
+            this.okButton.Location = new System.Drawing.Point(174, 7);
+            this.okButton.Name = "okButton";
+            this.okButton.Size = new System.Drawing.Size(75, 36);
+            this.okButton.TabIndex = 1;
+            this.okButton.Text = "OK";
+            this.okButton.UseVisualStyleBackColor = true;
+            this.okButton.Click += new System.EventHandler(this.okButton_Click);
+            // 
+            // cancelButton
+            // 
+            this.cancelButton.DialogResult = System.Windows.Forms.DialogResult.Cancel;
+            this.cancelButton.Location = new System.Drawing.Point(265, 7);
+            this.cancelButton.Name = "cancelButton";
+            this.cancelButton.Size = new System.Drawing.Size(75, 36);
+            this.cancelButton.TabIndex = 2;
+            this.cancelButton.Text = "Cancel";
+            this.cancelButton.UseVisualStyleBackColor = true;
+            // 
+            // GetIntegerNumberDlg
+            // 
+            this.AcceptButton = this.okButton;
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.AutoSize = true;
+            this.CancelButton = this.cancelButton;
+            this.ClientSize = new System.Drawing.Size(363, 50);
+            this.ControlBox = false;
+            this.Controls.Add(this.cancelButton);
+            this.Controls.Add(this.okButton);
+            this.Controls.Add(this.numberTextBox);
+            this.Name = "GetIntegerNumberDlg";
+            this.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Hide;
+            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
+            this.Text = "Enter integer number please";
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.TextBox numberTextBox;
+        private System.Windows.Forms.Button okButton;
+        private System.Windows.Forms.Button cancelButton;
+    }
+}

DataStreamInterfaceTest/GetIntegerNumberDlg.cs

@@ -0,0 +1,83 @@
+using System;
+using System.Windows.Forms;
+
+namespace DataStreamInterfaceTest
+{
+    public partial class GetIntegerNumberDlg : Form
+    {
+        /// <summary>
+        /// Integer number entered in this form
+        /// </summary>
+        public int Number;
+        
+        int lowerLimit;
+        int upperLimit;
+
+
+        /// <summary>
+        /// Default constructor
+        /// </summary>
+        public GetIntegerNumberDlg()
+            : this("Enter integer number please")
+        {
+        }
+
+        /// <summary>
+        /// Constructor with a custom window title.
+        /// </summary>
+        /// <param name="title">Window title</param>
+        public GetIntegerNumberDlg(string title)
+            : this(title, Int32.MinValue, Int32.MaxValue)
+        {
+        }
+
+        /// <summary>
+        /// Constructor with a custom window title, limits and non-empty initial value.
+        /// </summary>
+        /// <param name="title">Window title</param>
+        /// <param name="lowerLimit">Lower limit</param>
+        /// <param name="upperLimit">Upper limit</param>
+        /// <param name="initialValue">Initial value</param>
+        public GetIntegerNumberDlg(string title, int lowerLimit, int upperLimit, int initialValue)
+            : this(title, lowerLimit, upperLimit)
+        {
+            numberTextBox.Text = initialValue.ToString();
+        }
+
+        /// <summary>
+        /// Constructor with a custom window title and lower/upper limits.
+        /// </summary>
+        /// <param name="title">Window title</param>
+        /// <param name="lowerLimit">Lower limit</param>
+        /// <param name="upperLimit">Upper limit</param>
+        public GetIntegerNumberDlg(string title, int lowerLimit, int upperLimit)
+        {
+            InitializeComponent();
+            this.Text = title;
+            this.lowerLimit = lowerLimit;
+            this.upperLimit = upperLimit;
+        }
+
+
+        /// <summary>
+        /// OK button handler that verifies validity of the entered value.
+        /// </summary>
+        private void okButton_Click(object sender, EventArgs e)
+        {
+            int number;
+            if (int.TryParse(numberTextBox.Text, out number) && number >= lowerLimit && number <= upperLimit)
+            {
+                Number = number;
+                DialogResult = DialogResult.OK;
+            }
+            else
+            {
+                string message = (lowerLimit != Int32.MinValue || upperLimit != Int32.MaxValue)
+                               ? string.Format("Invalid integer number ({0}..{1})", lowerLimit, upperLimit)
+                               : "Invalid integer number";
+                MessageBox.Show(message);
+                DialogResult = DialogResult.None;   /// Prevent closing this window
+            }
+        }
+    }
+}

DataStreamInterfaceTest/GetIntegerNumberDlg.resx

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <root>
   <!-- 
     Microsoft ResX Schema 
@@ -117,64 +117,4 @@
   <resheader name="writer">
     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
-  <data name="okButton.Text" xml:space="preserve">
-    <value>OK</value>
-  </data>
-  <data name="wmStateLabel1.Text" xml:space="preserve">
-    <value>Stan</value>
-  </data>
-  <data name="snLabel1.Text" xml:space="preserve">
-    <value>Nr seryjny</value>
-  </data>
-  <data name="groupBox1.Text" xml:space="preserve">
-    <value>Wodomierz 1</value>
-  </data>
-  <data name="wmStateLabel2.Text" xml:space="preserve">
-    <value>Stan</value>
-  </data>
-  <data name="snLabel2.Text" xml:space="preserve">
-    <value>Nr seryjny</value>
-  </data>
-  <data name="groupBox2.Text" xml:space="preserve">
-    <value>Wodomierz 2</value>
-  </data>
-  <data name="wmStateLabel3.Text" xml:space="preserve">
-    <value>Stan</value>
-  </data>
-  <data name="snLabel3.Text" xml:space="preserve">
-    <value>Nr seryjny</value>
-  </data>
-  <data name="groupBox3.Text" xml:space="preserve">
-    <value>Wodomierz 3</value>
-  </data>
-  <data name="wmStateLabel4.Text" xml:space="preserve">
-    <value>Stan</value>
-  </data>
-  <data name="snLabel4.Text" xml:space="preserve">
-    <value>Nr seryjny</value>
-  </data>
-  <data name="groupBox4.Text" xml:space="preserve">
-    <value>Wodomierz 4</value>
-  </data>
-  <data name="wmStateLabel5.Text" xml:space="preserve">
-    <value>Stan</value>
-  </data>
-  <data name="snLabel5.Text" xml:space="preserve">
-    <value>Nr seryjny</value>
-  </data>
-  <data name="groupBox5.Text" xml:space="preserve">
-    <value>Wodomierz 5</value>
-  </data>
-  <data name="wmStateLabel6.Text" xml:space="preserve">
-    <value>Stan</value>
-  </data>
-  <data name="snLabel6.Text" xml:space="preserve">
-    <value>Nr seryjny</value>
-  </data>
-  <data name="groupBox6.Text" xml:space="preserve">
-    <value>Wodomierz 6</value>
-  </data>
-  <data name="$this.Text" xml:space="preserve">
-    <value>Nr seryjny i stan</value>
-  </data>
 </root>

DataStreamInterfaceTest/GetStateDlg.Designer.cs

@@ -0,0 +1,126 @@
+namespace DataStreamInterfaceTest
+{
+    partial class GetStateDlg
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.stateTextBox = new System.Windows.Forms.TextBox();
+            this.okButton = new System.Windows.Forms.Button();
+            this.cancelButton = new System.Windows.Forms.Button();
+            this.parameterTextBox = new System.Windows.Forms.TextBox();
+            this.stateLabel = new System.Windows.Forms.Label();
+            this.parameterLabel = new System.Windows.Forms.Label();
+            this.SuspendLayout();
+            // 
+            // stateTextBox
+            // 
+            this.stateTextBox.Location = new System.Drawing.Point(89, 16);
+            this.stateTextBox.Name = "stateTextBox";
+            this.stateTextBox.Size = new System.Drawing.Size(100, 20);
+            this.stateTextBox.TabIndex = 0;
+            // 
+            // okButton
+            // 
+            this.okButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+            this.okButton.Location = new System.Drawing.Point(225, 24);
+            this.okButton.Name = "okButton";
+            this.okButton.Size = new System.Drawing.Size(75, 36);
+            this.okButton.TabIndex = 1;
+            this.okButton.Text = "OK";
+            this.okButton.UseVisualStyleBackColor = true;
+            this.okButton.Click += new System.EventHandler(this.okButton_Click);
+            // 
+            // cancelButton
+            // 
+            this.cancelButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+            this.cancelButton.DialogResult = System.Windows.Forms.DialogResult.Cancel;
+            this.cancelButton.Location = new System.Drawing.Point(316, 24);
+            this.cancelButton.Name = "cancelButton";
+            this.cancelButton.Size = new System.Drawing.Size(75, 36);
+            this.cancelButton.TabIndex = 2;
+            this.cancelButton.Text = "Cancel";
+            this.cancelButton.UseVisualStyleBackColor = true;
+            // 
+            // parameterTextBox
+            // 
+            this.parameterTextBox.Location = new System.Drawing.Point(89, 46);
+            this.parameterTextBox.Name = "parameterTextBox";
+            this.parameterTextBox.Size = new System.Drawing.Size(100, 20);
+            this.parameterTextBox.TabIndex = 3;
+            // 
+            // stateLabel
+            // 
+            this.stateLabel.AutoSize = true;
+            this.stateLabel.Location = new System.Drawing.Point(12, 19);
+            this.stateLabel.Name = "stateLabel";
+            this.stateLabel.Size = new System.Drawing.Size(32, 13);
+            this.stateLabel.TabIndex = 4;
+            this.stateLabel.Text = "State";
+            // 
+            // parameterLabel
+            // 
+            this.parameterLabel.AutoSize = true;
+            this.parameterLabel.Location = new System.Drawing.Point(12, 49);
+            this.parameterLabel.Name = "parameterLabel";
+            this.parameterLabel.Size = new System.Drawing.Size(55, 13);
+            this.parameterLabel.TabIndex = 5;
+            this.parameterLabel.Text = "Parameter";
+            // 
+            // GetStateDlg
+            // 
+            this.AcceptButton = this.okButton;
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.AutoSize = true;
+            this.CancelButton = this.cancelButton;
+            this.ClientSize = new System.Drawing.Size(419, 79);
+            this.ControlBox = false;
+            this.Controls.Add(this.parameterLabel);
+            this.Controls.Add(this.stateLabel);
+            this.Controls.Add(this.parameterTextBox);
+            this.Controls.Add(this.cancelButton);
+            this.Controls.Add(this.okButton);
+            this.Controls.Add(this.stateTextBox);
+            this.Name = "GetStateDlg";
+            this.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Hide;
+            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
+            this.Text = "Enter state please";
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.TextBox stateTextBox;
+        private System.Windows.Forms.Button okButton;
+        private System.Windows.Forms.Button cancelButton;
+        private System.Windows.Forms.TextBox parameterTextBox;
+        private System.Windows.Forms.Label stateLabel;
+        private System.Windows.Forms.Label parameterLabel;
+    }
+}

DataStreamInterfaceTest/GetStateDlg.cs

@@ -0,0 +1,85 @@
+using System;
+using System.Windows.Forms;
+
+namespace DataStreamInterfaceTest
+{
+    public partial class GetStateDlg : Form
+    {
+        /// <summary>
+        /// Integer number entered in this form
+        /// </summary>
+        public int State;
+        public string Parameter;
+        
+        int lowerLimit;
+        int upperLimit;
+
+
+        /// <summary>
+        /// Default constructor
+        /// </summary>
+        public GetStateDlg()
+            : this("Enter state please")
+        {
+        }
+
+        /// <summary>
+        /// Constructor with a custom window title.
+        /// </summary>
+        /// <param name="title">Window title</param>
+        public GetStateDlg(string title)
+            : this(title, Int32.MinValue, Int32.MaxValue)
+        {
+        }
+
+        /// <summary>
+        /// Constructor with a custom window title, limits and non-empty initial value.
+        /// </summary>
+        /// <param name="title">Window title</param>
+        /// <param name="lowerLimit">Lower limit</param>
+        /// <param name="upperLimit">Upper limit</param>
+        /// <param name="initialValue">Initial value</param>
+        public GetStateDlg(string title, int lowerLimit, int upperLimit, int initialValue)
+            : this(title, lowerLimit, upperLimit)
+        {
+            stateTextBox.Text = initialValue.ToString();
+        }
+
+        /// <summary>
+        /// Constructor with a custom window title and lower/upper limits.
+        /// </summary>
+        /// <param name="title">Window title</param>
+        /// <param name="lowerLimit">Lower limit</param>
+        /// <param name="upperLimit">Upper limit</param>
+        public GetStateDlg(string title, int lowerLimit, int upperLimit)
+        {
+            InitializeComponent();
+            this.Text = title;
+            this.lowerLimit = lowerLimit;
+            this.upperLimit = upperLimit;
+        }
+
+
+        /// <summary>
+        /// OK button handler that verifies validity of the entered value.
+        /// </summary>
+        private void okButton_Click(object sender, EventArgs e)
+        {
+            int number;
+            if (int.TryParse(stateTextBox.Text, out number) && number >= lowerLimit && number <= upperLimit)
+            {
+                State = number;
+                Parameter = parameterTextBox.Text;
+                DialogResult = DialogResult.OK;
+            }
+            else
+            {
+                string message = (lowerLimit != Int32.MinValue || upperLimit != Int32.MaxValue)
+                               ? string.Format("Invalid state ({0}..{1})", lowerLimit, upperLimit)
+                               : "Invalid state";
+                MessageBox.Show(message);
+                DialogResult = DialogResult.None;   /// Prevent closing this window
+            }
+        }
+    }
+}

DataStreamInterfaceTest/GetStateDlg.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

DataStreamInterfaceTest/LviIDComparer.cs

@@ -0,0 +1,39 @@
+using System;
+using System.Collections;
+using System.Windows.Forms;
+
+namespace DataStreamInterfaceTest
+{
+    public class LviIDComparer : IComparer
+    {
+        int column;
+        SortOrder order;
+
+        public LviIDComparer()
+        {
+            column = 0;
+            order = SortOrder.Ascending;
+        }
+
+        public LviIDComparer(int column, SortOrder order)
+        {
+            this.column = column;
+            this.order = order;
+        }
+
+        public int Compare(object x, object y)
+        {
+            Int64 valX = Int64.Parse(((ListViewItem)x).SubItems[column].Text);
+            Int64 valY = Int64.Parse(((ListViewItem)y).SubItems[column].Text);
+
+            if (order == SortOrder.Ascending)
+            {
+                return valX > valY ? 1 : valX == valY ? 0 : -1;
+            }
+            else
+            {
+                return valX < valY ? 1 : valX == valY ? 0 : -1;
+            }
+        }
+    }
+}

DataStreamInterfaceTest/Program.cs

@@ -0,0 +1,55 @@
+using System;
+using System.IO;
+using System.ComponentModel.Composition;
+using System.ComponentModel.Composition.Hosting;
+using System.Windows.Forms;
+using DataStreamInterface;
+
+namespace DataStreamInterfaceTest
+{
+    class Program
+    {
+#if DEBUG
+        const string CatalogDir = "..\\..\\..\\DataStreamMeter\\bin\\Debug";
+#else
+        const string CatalogDir = "..\\..\\..\\DataStreamMeter\\bin\\Release";
+#endif
+
+        [Import(typeof(IDataStreamMeter))]
+        IDataStreamMeter dataStreamMeter;
+
+        private Program()
+        {
+            Console.WriteLine("Components found:");
+            foreach (var file in Directory.EnumerateFiles(CatalogDir))
+            {
+                Console.WriteLine(file);
+            }
+
+            try
+            {
+                var catalog = new AggregateCatalog();
+                catalog.Catalogs.Add(new AssemblyCatalog(typeof(DataStreamInterface.IDataStreamMeter).Assembly));
+                catalog.Catalogs.Add(new DirectoryCatalog(CatalogDir));
+                (new CompositionContainer(catalog)).ComposeParts(this);
+            }
+            catch (CompositionException compositionException)
+            {
+                Console.WriteLine(compositionException.ToString());
+            }
+        }
+
+        /// <summary>
+        /// The main entry point for the application.
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            Program p = new Program();
+
+            Application.EnableVisualStyles();
+            Application.SetCompatibleTextRenderingDefault(false);
+            Application.Run(new DemoMainWnd(p.dataStreamMeter));
+        }
+    }
+}

DataStreamInterfaceTest/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("DataStreamInterfaceTest")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("DataStreamInterfaceTest")]
+[assembly: AssemblyCopyright("Copyright ©  2020")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("429fdea9-ec3a-47d8-88b3-5df11de8b4c8")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

DataStreamInterfaceTest/Properties/Resources.Designer.cs

@@ -0,0 +1,71 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace DataStreamInterfaceTest.Properties
+{
+
+
+    /// <summary>
+    ///   A strongly-typed resource class, for looking up localized strings, etc.
+    /// </summary>
+    // This class was auto-generated by the StronglyTypedResourceBuilder
+    // class via a tool like ResGen or Visual Studio.
+    // To add or remove a member, edit your .ResX file then rerun ResGen
+    // with the /str option, or rebuild your VS project.
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources
+    {
+
+        private static global::System.Resources.ResourceManager resourceMan;
+
+        private static global::System.Globalization.CultureInfo resourceCulture;
+
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources()
+        {
+        }
+
+        /// <summary>
+        ///   Returns the cached ResourceManager instance used by this class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager
+        {
+            get
+            {
+                if ((resourceMan == null))
+                {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("DataStreamMainDemo.Properties.Resources", typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+
+        /// <summary>
+        ///   Overrides the current thread's CurrentUICulture property for all
+        ///   resource lookups using this strongly typed resource class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture
+        {
+            get
+            {
+                return resourceCulture;
+            }
+            set
+            {
+                resourceCulture = value;
+            }
+        }
+    }
+}

DataStreamInterfaceTest/Properties/Resources.resx

@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

DataStreamInterfaceTest/Properties/Settings.Designer.cs

@@ -0,0 +1,30 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace DataStreamInterfaceTest.Properties
+{
+
+
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "11.0.0.0")]
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase
+    {
+
+        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+
+        public static Settings Default
+        {
+            get
+            {
+                return defaultInstance;
+            }
+        }
+    }
+}

DataStreamInterfaceTest/Properties/Settings.settings

@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)">
+  <Profiles>
+    <Profile Name="(Default)" />
+  </Profiles>
+  <Settings />
+</SettingsFile>

DataStreamMeter/DataStreamMeter.csproj

@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{E6925701-57A6-4167-B5C4-BF670F1DE310}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>DataStreamMeter</RootNamespace>
+    <AssemblyName>DataStreamMeter</AssemblyName>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.ComponentModel.Composition" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="GetDblValueDlg.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="GetDblValueDlg.Designer.cs">
+      <DependentUpon>GetDblValueDlg.cs</DependentUpon>
+    </Compile>
+    <Compile Include="MeterDataEventArgs.cs" />
+    <Compile Include="MeterSimulationDlg.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="MeterSimulationDlg.Designer.cs">
+      <DependentUpon>MeterSimulationDlg.cs</DependentUpon>
+    </Compile>
+    <Compile Include="MeterSimulation.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Sample.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\DataStreamInterface\DataStreamInterface.csproj">
+      <Project>{7ebeea14-91c4-48d7-af0a-7a4bc3ff9a28}</Project>
+      <Name>DataStreamInterface</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="GetDblValueDlg.resx">
+      <DependentUpon>GetDblValueDlg.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="MeterSimulationDlg.resx">
+      <DependentUpon>MeterSimulationDlg.cs</DependentUpon>
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

DataStreamMeter/GetDblValueDlg.Designer.cs

@@ -0,0 +1,88 @@
+namespace DataStreamMeter
+{
+    partial class GetDblValueDlg
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.valueTextBox = new System.Windows.Forms.TextBox();
+            this.okButton = new System.Windows.Forms.Button();
+            this.cancelButton = new System.Windows.Forms.Button();
+            this.SuspendLayout();
+            // 
+            // valueTextBox
+            // 
+            this.valueTextBox.Location = new System.Drawing.Point(35, 20);
+            this.valueTextBox.Name = "valueTextBox";
+            this.valueTextBox.Size = new System.Drawing.Size(94, 20);
+            this.valueTextBox.TabIndex = 0;
+            // 
+            // okButton
+            // 
+            this.okButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+            this.okButton.Location = new System.Drawing.Point(216, 16);
+            this.okButton.Name = "okButton";
+            this.okButton.Size = new System.Drawing.Size(75, 29);
+            this.okButton.TabIndex = 1;
+            this.okButton.Text = "OK";
+            this.okButton.UseVisualStyleBackColor = true;
+            this.okButton.Click += new System.EventHandler(this.okButton_Click);
+            // 
+            // cancelButton
+            // 
+            this.cancelButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+            this.cancelButton.DialogResult = System.Windows.Forms.DialogResult.Cancel;
+            this.cancelButton.Location = new System.Drawing.Point(306, 16);
+            this.cancelButton.Name = "cancelButton";
+            this.cancelButton.Size = new System.Drawing.Size(75, 29);
+            this.cancelButton.TabIndex = 2;
+            this.cancelButton.Text = "Cancel";
+            this.cancelButton.UseVisualStyleBackColor = true;
+            // 
+            // GetFlowDlg
+            // 
+            this.AcceptButton = this.okButton;
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.CancelButton = this.cancelButton;
+            this.ClientSize = new System.Drawing.Size(396, 58);
+            this.Controls.Add(this.cancelButton);
+            this.Controls.Add(this.okButton);
+            this.Controls.Add(this.valueTextBox);
+            this.Name = "GetFlowDlg";
+            this.Text = "Enter flow";
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.TextBox valueTextBox;
+        private System.Windows.Forms.Button okButton;
+        private System.Windows.Forms.Button cancelButton;
+    }
+}

DataStreamMeter/GetDblValueDlg.cs

@@ -0,0 +1,59 @@
+using System;
+using System.Globalization;
+using System.Windows.Forms;
+
+namespace DataStreamMeter
+{
+    public partial class GetDblValueDlg : Form
+    {
+        public double DblValue;
+
+        double lowerLimit;
+        double upperLimit;
+
+
+        public GetDblValueDlg()
+            : this("Enter flow in [m3/h] please")
+        {
+        }
+
+        public GetDblValueDlg(string title)
+            : this(title, 0, 100.0)
+        {
+        }
+
+        public GetDblValueDlg(string title, double lowerLimit, double upperLimit)
+        {
+            InitializeComponent();
+            this.Text = title;
+            this.lowerLimit = lowerLimit;
+            this.upperLimit = upperLimit;
+        }
+
+
+        private void okButton_Click(object sender, EventArgs e)
+        {
+            double val;
+            if (TryParseUDouble(valueTextBox.Text, out val))
+            {
+                DblValue = val;
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            else
+            {
+                MessageBox.Show("Invalid value");
+                DialogResult = DialogResult.None;
+            }
+        }
+
+        /// <summary>
+        /// Parse an unsigned double number
+        /// </summary>
+        bool TryParseUDouble(string text, out double result)
+        {
+            return double.TryParse(text, NumberStyles.AllowDecimalPoint, CultureInfo.CurrentCulture, out result) ||
+                   double.TryParse(text, NumberStyles.AllowDecimalPoint, CultureInfo.InvariantCulture, out result);
+        }
+    }
+}

DataStreamMeter/GetDblValueDlg.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

DataStreamMeter/MeterDataEventArgs.cs

@@ -0,0 +1,20 @@
+using System;
+
+namespace DataStreamMeter
+{
+    public class MeterDataEventArgs : EventArgs
+    {
+        public State State;
+        public double Time;
+        public double Volume;
+        public double Flow;
+
+        public MeterDataEventArgs(State state, double time, double volume, double flow)
+        {
+            State = state;
+            Time = time;
+            Volume = volume;
+            Flow = flow;
+        }
+    }
+}

DataStreamMeter/MeterSimulation.cs

@@ -0,0 +1,351 @@
+using System;
+using System.ComponentModel.Composition;
+using DataStreamInterface;
+
+namespace DataStreamMeter
+{
+    [Export(typeof(IDataStreamMeter))]
+    public class MeterSimulation : IDataStreamMeter
+    {
+        MeterSimulationDlg modelessDlg;
+
+        /// Water meter specification
+        public readonly string MeterID = "3141592653";
+        public const Unit TimeUnits = Unit.s;           /// Unit.s, Unit.ms, ...
+        public const Unit VolumeUnits = Unit.l;         /// Unit.l, Unit.USgal, ...
+        public const Unit FlowUnits = Unit.m3ph;        /// Unit.m3ph, Unit.USgalps, Unit.cfs, ...
+        public const double SamplingPeriodSec = 0.125;  /// Sampling period in seconds (here 125 ms, 8 Hz)
+        public readonly double SamplingPeriod;
+
+
+        public const Int64 MaxSamplesCount = 40000;    /// Maximal test time is SamplingPeriod * MaxSamplesCount
+        Sample[] samples = new Sample[MaxSamplesCount];
+        Int64 storedSamplesCount;
+
+
+        readonly object stateChangeAndTimerTickLock = new object();
+        public State State;
+        string connectionParameters;
+
+        /// initialTime is time when simulation started 
+        /// (lastSampleTime - initialTime).TotalSeconds is multiple of Sampling Period
+        DateTime initialTime;
+
+        /// Last user interface tick info
+        bool lastTickValid;
+        State lastTickState;
+
+        /// Values incrementally updated on each timer tick
+        double currentTime;
+        double currentVolume;
+        double currentFlow;
+        double currentFlow_m3ph;
+
+        DateTime startTimeStamp;        /// Measurement start DateTime
+        double startTime;               /// Measurement start time in seconds
+        DateTime stopTimeStamp;         /// Measurement end DateTime
+        double stopTime;                /// Measurement end time in seconds
+
+
+        public MeterSimulation()
+        {
+            modelessDlg = null;
+            State = State.Disconnected;
+            SamplingPeriod = DataStreamInterface.Units.ConvertTo(TimeUnits, SamplingPeriodSec);
+            lastTickValid = false;
+            initialTime = DateTime.Now.Date;    /// An arbitrary initial time (in this case the last midnight)
+        }
+
+        public Unit GetTimeUnits()
+        {
+            return TimeUnits;
+        }
+
+        public Unit GetVolumeUnits()
+        {
+            return VolumeUnits;
+        }
+
+        public int GetQuantitiesCount()
+        {
+            return 1;
+        }
+
+        public string GetQuantityCaption(int quantityNr)
+        {
+            if (quantityNr == 0) return "Flow";
+            return string.Empty;
+        }
+
+        public Unit GetQuantityUnits(int quantityNr)
+        {
+            if (quantityNr == 0) return FlowUnits;
+            return Unit.None;
+        }
+
+
+        public int GetMetersCount()
+        {
+            return 1;
+        }
+
+        public bool OpenConnection(int meterIx, string connectionParameters, out string meterID)
+        {
+            lock (stateChangeAndTimerTickLock)
+            {
+                if (State != State.Disconnected)
+                {
+                    /// Meter is already connected
+                    meterID = MeterID;
+                    return true;
+                }
+
+                /// Connect the meter
+                meterID = MeterID;
+                this.connectionParameters = connectionParameters;
+                lastTickValid = false;
+                State = State.Connected;
+            }
+
+            /// Open modeless form
+            modelessDlg = new MeterSimulationDlg(this, MeterID);
+            modelessDlg.Show();
+            return true;
+        }
+
+        public bool CloseConnection(int meterIx)
+        {
+            bool closeModelessDlg = false;
+
+            lock (stateChangeAndTimerTickLock)
+            {
+                if (State != State.Disconnected)
+                {
+                    State = State.Disconnected;
+                    storedSamplesCount = 0;
+                    closeModelessDlg = true;
+                }
+            }
+
+            if (closeModelessDlg)
+            {
+                if (modelessDlg != null) modelessDlg.Close();
+                modelessDlg = null;
+            }
+            return true;
+        }
+
+        public bool CloseConnectionAll()
+        {
+            return CloseConnection(0);
+        }
+
+        public bool Shutdown()
+        {
+            return true;
+        }
+
+        public bool GetState(int meterIx, out int state, out string parameter)
+        {
+            state = (int)this.State;
+            parameter = this.connectionParameters;
+            return true;
+        }
+
+        public bool SetState(int meterIx, int state, string parameter)
+        {
+            /// It's not allowed to change the satate in this demo
+            return false;
+        }
+
+        public bool SetStateAll(int state, string parameter)
+        {
+            return SetState(0, state, parameter);
+        }
+
+        public bool StartMeasurement(int meterIx = 0)
+        {
+            lock (stateChangeAndTimerTickLock)
+            {
+                if (State == State.Connected)
+                {
+                    startTimeStamp = DateTime.Now;
+                    startTime = TimeInSecondsFromDateTime(startTimeStamp, initialTime, SamplingPeriodSec);
+                    storedSamplesCount = 0;
+                    State = State.MeasurementInProgress;
+                    return true;
+                }
+                else
+                {
+                    return false;
+                }
+            }
+        }
+
+        public bool StartMeasurementAll()
+        {
+            return StartMeasurement(0);
+        }
+
+        public bool StopMeasurement(int meterIx, out Int64 storedFramesCount)
+        {
+            lock (stateChangeAndTimerTickLock)
+            {
+                if (State == State.MeasurementInProgress)
+                {
+                    stopTimeStamp = DateTime.Now;
+                    stopTime = TimeInSecondsFromDateTime(stopTimeStamp, initialTime, SamplingPeriodSec);
+
+                    int newSamplesCount = Convert.ToInt32(Math.Round((stopTime - currentTime) / SamplingPeriodSec));
+                    double time = Units.ConvertTo(TimeUnits, currentTime);
+                    double volume = currentVolume;
+                    double volumeIncrement = Units.ConvertTo(VolumeUnits, currentFlow_m3ph * (SamplingPeriodSec / 3.6));
+                    for (int i = 0; i < newSamplesCount; i++)
+                    {
+                        time += SamplingPeriod;
+                        volume += volumeIncrement;
+                        if (storedSamplesCount < MaxSamplesCount)
+                        {
+                            samples[storedSamplesCount++] = new Sample(time, volume, currentFlow);
+                        }
+                    }
+
+                    State = State.Connected;
+                    storedFramesCount = storedSamplesCount;
+                    return true;
+                }
+                else
+                {
+                    storedFramesCount = 0;
+                    return false;
+                }
+            }
+        }
+
+        public bool StopMeasurementAll(out Int64[] storedFramesCount)
+        {
+            storedFramesCount = new Int64[1];
+            return StopMeasurement(0, out storedFramesCount[0]);
+        }
+
+        public void TimerTick(double flow_m3ph)
+        {
+            lock (stateChangeAndTimerTickLock)
+            {
+                double lastSampleTime = TimeInSecondsFromDateTime(DateTime.Now, initialTime, SamplingPeriodSec);
+                currentFlow_m3ph = flow_m3ph;
+                currentFlow = Units.ConvertTo(FlowUnits, flow_m3ph);
+
+                if (!lastTickValid)
+                {
+                    currentTime = lastSampleTime;
+                    currentVolume = 0;
+                    lastTickValid = true;
+                    lastTickState = State;
+                    return;
+                }
+                else
+                {
+                    int newSamplesCount = Convert.ToInt32(Math.Round((lastSampleTime - currentTime) / SamplingPeriodSec));
+                    double volumeIncrement = Units.ConvertTo(VolumeUnits, currentFlow_m3ph * (SamplingPeriodSec / 3.6));
+                    for (int i = 0; i < newSamplesCount; i++)
+                    {
+                        currentTime += SamplingPeriodSec;
+                        currentVolume += volumeIncrement;
+
+                        if (State == State.MeasurementInProgress && currentTime > startTime && storedSamplesCount < MaxSamplesCount)
+                        {
+                            samples[storedSamplesCount++] = new Sample(Units.ConvertTo(TimeUnits, currentTime), currentVolume, currentFlow);
+                        }
+                    }
+                    currentTime = lastSampleTime;   /// Rectify, prevent error propagation
+                    lastTickState = State;
+                }
+            }
+
+            modelessDlg.OnMeterdata(new MeterDataEventArgs(State, currentTime, currentVolume, currentFlow));
+        }
+
+        
+        /// <summary>
+        /// Obtain the last time instance before 'DateTime time' which is multiple of samplingPeriod-s after 'DateTime initialTime'.
+        /// </summary>
+        /// <param name="time">Time to be converted to seconds and rounded to samplingPeriod-s</param>
+        /// <param name="startTime">Initial time</param>
+        /// <param name="samplePeriod">Sampling period in seconds</param>
+        /// <returns></returns>
+        double TimeInSecondsFromDateTime(DateTime time, DateTime initialTime, double samplingPeriod)
+        {
+            TimeSpan span = time - initialTime;
+            return samplingPeriod * Math.Floor(span.TotalSeconds / samplingPeriod);
+        }
+
+
+        ///---------------------------
+        /// Datastream data exchange
+        ///---------------------------
+
+        /// <summary>
+        /// Retuns 'count' data frames starting with data frame with ID = 'id' 
+        /// </summary>
+        /// <param name="id">First frame ID</param>
+        /// <param name="count">Frames count</param>
+        /// <returns>Selected data frames</returns>
+        public DataFrame[] GetFrames(int meterIx, Int64 startID, int count)
+        {
+            DataFrame[] frames = new DataFrame[count];
+
+            if (State != State.MeasurementInProgress)
+            {
+                for (int j = 0; j < count; j++)
+                {
+                    Int64 id = startID + j;
+                    if (id < storedSamplesCount)
+                    {
+                        frames[j] = new DataFrame(id, samples[id].Time, samples[id].Volume, new double[1] { samples[id].Flow });
+                    }
+                }
+            }
+
+            return frames;
+        }
+
+        /// <summary>
+        /// Returns ID of the data frame where time equals or exceeds the specified time.
+        /// When time of the first frame (ID=0) is larger then specified time, function returns 0.
+        /// </summary>
+        /// <param name="time">Time</param>
+        /// <returns>ID of the data frame at or after the pecified time</returns>
+        public Int64 GetID(int meterIx, double time)
+        {
+            if (storedSamplesCount == 0) return -1;
+
+            Int64 lo = 0;
+            Int64 hi = storedSamplesCount - 1;
+
+            if (samples[hi].Time < time) return -1;
+
+            while (lo < hi)
+            {
+                Int64 mid = (lo + hi) / 2;
+                if (samples[mid].Time < time)
+                {
+                    lo = mid + 1;
+                }
+                else
+                {
+                    hi = mid;
+                }
+            }
+
+            return lo;
+        }
+    }
+
+    public enum State
+    {
+        Disconnected = 0,
+        Connected = 1,
+        MeasurementInProgress = 2,
+    }
+}

DataStreamMeter/MeterSimulationDlg.Designer.cs

@@ -0,0 +1,323 @@
+namespace DataStreamMeter
+{
+    partial class MeterSimulationDlg
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.components = new System.ComponentModel.Container();
+            this.meterIDGroupBox = new System.Windows.Forms.GroupBox();
+            this.label3 = new System.Windows.Forms.Label();
+            this.label2 = new System.Windows.Forms.Label();
+            this.volumeUnitsTextBox = new System.Windows.Forms.TextBox();
+            this.timeUnitsTextBox = new System.Windows.Forms.TextBox();
+            this.label1 = new System.Windows.Forms.Label();
+            this.meterIDTextBox = new System.Windows.Forms.TextBox();
+            this.groupBox1 = new System.Windows.Forms.GroupBox();
+            this.setFlowButton = new System.Windows.Forms.Button();
+            this.flowm3phTextBox = new System.Windows.Forms.TextBox();
+            this.flowTrackBar = new System.Windows.Forms.TrackBar();
+            this.groupBox2 = new System.Windows.Forms.GroupBox();
+            this.flowTextBox = new System.Windows.Forms.TextBox();
+            this.volumeTextBox = new System.Windows.Forms.TextBox();
+            this.timeTextBox = new System.Windows.Forms.TextBox();
+            this.stateTextBox = new System.Windows.Forms.TextBox();
+            this.label8 = new System.Windows.Forms.Label();
+            this.label7 = new System.Windows.Forms.Label();
+            this.label6 = new System.Windows.Forms.Label();
+            this.label5 = new System.Windows.Forms.Label();
+            this.lastUITickTextBox = new System.Windows.Forms.TextBox();
+            this.label4 = new System.Windows.Forms.Label();
+            this.timer1 = new System.Windows.Forms.Timer(this.components);
+            this.meterIDGroupBox.SuspendLayout();
+            this.groupBox1.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)(this.flowTrackBar)).BeginInit();
+            this.groupBox2.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // meterIDGroupBox
+            // 
+            this.meterIDGroupBox.Controls.Add(this.label3);
+            this.meterIDGroupBox.Controls.Add(this.label2);
+            this.meterIDGroupBox.Controls.Add(this.volumeUnitsTextBox);
+            this.meterIDGroupBox.Controls.Add(this.timeUnitsTextBox);
+            this.meterIDGroupBox.Controls.Add(this.label1);
+            this.meterIDGroupBox.Controls.Add(this.meterIDTextBox);
+            this.meterIDGroupBox.Location = new System.Drawing.Point(12, 12);
+            this.meterIDGroupBox.Name = "meterIDGroupBox";
+            this.meterIDGroupBox.Size = new System.Drawing.Size(453, 105);
+            this.meterIDGroupBox.TabIndex = 0;
+            this.meterIDGroupBox.TabStop = false;
+            this.meterIDGroupBox.Text = "Water meter info";
+            // 
+            // label3
+            // 
+            this.label3.AutoSize = true;
+            this.label3.Location = new System.Drawing.Point(18, 76);
+            this.label3.Name = "label3";
+            this.label3.Size = new System.Drawing.Size(67, 13);
+            this.label3.TabIndex = 5;
+            this.label3.Text = "Volume units";
+            // 
+            // label2
+            // 
+            this.label2.AutoSize = true;
+            this.label2.Location = new System.Drawing.Point(18, 50);
+            this.label2.Name = "label2";
+            this.label2.Size = new System.Drawing.Size(55, 13);
+            this.label2.TabIndex = 4;
+            this.label2.Text = "Time units";
+            // 
+            // volumeUnitsTextBox
+            // 
+            this.volumeUnitsTextBox.Enabled = false;
+            this.volumeUnitsTextBox.Location = new System.Drawing.Point(122, 73);
+            this.volumeUnitsTextBox.Name = "volumeUnitsTextBox";
+            this.volumeUnitsTextBox.Size = new System.Drawing.Size(52, 20);
+            this.volumeUnitsTextBox.TabIndex = 3;
+            // 
+            // timeUnitsTextBox
+            // 
+            this.timeUnitsTextBox.Enabled = false;
+            this.timeUnitsTextBox.Location = new System.Drawing.Point(122, 47);
+            this.timeUnitsTextBox.Name = "timeUnitsTextBox";
+            this.timeUnitsTextBox.Size = new System.Drawing.Size(52, 20);
+            this.timeUnitsTextBox.TabIndex = 2;
+            // 
+            // label1
+            // 
+            this.label1.AutoSize = true;
+            this.label1.Location = new System.Drawing.Point(18, 24);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(73, 13);
+            this.label1.TabIndex = 1;
+            this.label1.Text = "Meter ID (s/n)";
+            // 
+            // meterIDTextBox
+            // 
+            this.meterIDTextBox.Enabled = false;
+            this.meterIDTextBox.Location = new System.Drawing.Point(122, 21);
+            this.meterIDTextBox.Name = "meterIDTextBox";
+            this.meterIDTextBox.Size = new System.Drawing.Size(145, 20);
+            this.meterIDTextBox.TabIndex = 0;
+            // 
+            // groupBox1
+            // 
+            this.groupBox1.Controls.Add(this.setFlowButton);
+            this.groupBox1.Controls.Add(this.flowm3phTextBox);
+            this.groupBox1.Controls.Add(this.flowTrackBar);
+            this.groupBox1.Location = new System.Drawing.Point(12, 123);
+            this.groupBox1.Name = "groupBox1";
+            this.groupBox1.Size = new System.Drawing.Size(453, 96);
+            this.groupBox1.TabIndex = 1;
+            this.groupBox1.TabStop = false;
+            this.groupBox1.Text = "Flow";
+            // 
+            // setFlowButton
+            // 
+            this.setFlowButton.Location = new System.Drawing.Point(289, 17);
+            this.setFlowButton.Name = "setFlowButton";
+            this.setFlowButton.Size = new System.Drawing.Size(75, 23);
+            this.setFlowButton.TabIndex = 4;
+            this.setFlowButton.Text = "Set value";
+            this.setFlowButton.UseVisualStyleBackColor = true;
+            this.setFlowButton.Click += new System.EventHandler(this.setFlowButton_Click);
+            // 
+            // flowm3phTextBox
+            // 
+            this.flowm3phTextBox.Enabled = false;
+            this.flowm3phTextBox.Location = new System.Drawing.Point(122, 19);
+            this.flowm3phTextBox.Name = "flowm3phTextBox";
+            this.flowm3phTextBox.Size = new System.Drawing.Size(145, 20);
+            this.flowm3phTextBox.TabIndex = 3;
+            // 
+            // flowTrackBar
+            // 
+            this.flowTrackBar.LargeChange = 1;
+            this.flowTrackBar.Location = new System.Drawing.Point(0, 43);
+            this.flowTrackBar.Maximum = 25;
+            this.flowTrackBar.Name = "flowTrackBar";
+            this.flowTrackBar.Size = new System.Drawing.Size(447, 45);
+            this.flowTrackBar.TabIndex = 2;
+            this.flowTrackBar.Scroll += new System.EventHandler(this.flowTrackBar_Scroll);
+            // 
+            // groupBox2
+            // 
+            this.groupBox2.Controls.Add(this.flowTextBox);
+            this.groupBox2.Controls.Add(this.volumeTextBox);
+            this.groupBox2.Controls.Add(this.timeTextBox);
+            this.groupBox2.Controls.Add(this.stateTextBox);
+            this.groupBox2.Controls.Add(this.label8);
+            this.groupBox2.Controls.Add(this.label7);
+            this.groupBox2.Controls.Add(this.label6);
+            this.groupBox2.Controls.Add(this.label5);
+            this.groupBox2.Controls.Add(this.lastUITickTextBox);
+            this.groupBox2.Controls.Add(this.label4);
+            this.groupBox2.Location = new System.Drawing.Point(12, 225);
+            this.groupBox2.Name = "groupBox2";
+            this.groupBox2.Size = new System.Drawing.Size(453, 150);
+            this.groupBox2.TabIndex = 2;
+            this.groupBox2.TabStop = false;
+            this.groupBox2.Text = "State";
+            // 
+            // flowTextBox
+            // 
+            this.flowTextBox.Enabled = false;
+            this.flowTextBox.Location = new System.Drawing.Point(122, 121);
+            this.flowTextBox.Name = "flowTextBox";
+            this.flowTextBox.Size = new System.Drawing.Size(99, 20);
+            this.flowTextBox.TabIndex = 9;
+            // 
+            // volumeTextBox
+            // 
+            this.volumeTextBox.Enabled = false;
+            this.volumeTextBox.Location = new System.Drawing.Point(122, 95);
+            this.volumeTextBox.Name = "volumeTextBox";
+            this.volumeTextBox.Size = new System.Drawing.Size(99, 20);
+            this.volumeTextBox.TabIndex = 8;
+            // 
+            // timeTextBox
+            // 
+            this.timeTextBox.Enabled = false;
+            this.timeTextBox.Location = new System.Drawing.Point(122, 68);
+            this.timeTextBox.Name = "timeTextBox";
+            this.timeTextBox.Size = new System.Drawing.Size(99, 20);
+            this.timeTextBox.TabIndex = 7;
+            // 
+            // stateTextBox
+            // 
+            this.stateTextBox.Enabled = false;
+            this.stateTextBox.Location = new System.Drawing.Point(122, 42);
+            this.stateTextBox.Name = "stateTextBox";
+            this.stateTextBox.Size = new System.Drawing.Size(99, 20);
+            this.stateTextBox.TabIndex = 6;
+            // 
+            // label8
+            // 
+            this.label8.AutoSize = true;
+            this.label8.Location = new System.Drawing.Point(18, 124);
+            this.label8.Name = "label8";
+            this.label8.Size = new System.Drawing.Size(29, 13);
+            this.label8.TabIndex = 5;
+            this.label8.Text = "Flow";
+            // 
+            // label7
+            // 
+            this.label7.AutoSize = true;
+            this.label7.Location = new System.Drawing.Point(18, 98);
+            this.label7.Name = "label7";
+            this.label7.Size = new System.Drawing.Size(42, 13);
+            this.label7.TabIndex = 4;
+            this.label7.Text = "Volume";
+            // 
+            // label6
+            // 
+            this.label6.AutoSize = true;
+            this.label6.Location = new System.Drawing.Point(18, 71);
+            this.label6.Name = "label6";
+            this.label6.Size = new System.Drawing.Size(30, 13);
+            this.label6.TabIndex = 3;
+            this.label6.Text = "Time";
+            // 
+            // label5
+            // 
+            this.label5.AutoSize = true;
+            this.label5.Location = new System.Drawing.Point(18, 45);
+            this.label5.Name = "label5";
+            this.label5.Size = new System.Drawing.Size(32, 13);
+            this.label5.TabIndex = 2;
+            this.label5.Text = "State";
+            // 
+            // lastUITickTextBox
+            // 
+            this.lastUITickTextBox.Enabled = false;
+            this.lastUITickTextBox.Location = new System.Drawing.Point(122, 13);
+            this.lastUITickTextBox.Name = "lastUITickTextBox";
+            this.lastUITickTextBox.Size = new System.Drawing.Size(145, 20);
+            this.lastUITickTextBox.TabIndex = 1;
+            // 
+            // label4
+            // 
+            this.label4.AutoSize = true;
+            this.label4.Location = new System.Drawing.Point(18, 16);
+            this.label4.Name = "label4";
+            this.label4.Size = new System.Drawing.Size(61, 13);
+            this.label4.TabIndex = 0;
+            this.label4.Text = "Last UI tick";
+            // 
+            // timer1
+            // 
+            this.timer1.Interval = 1000;
+            this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
+            // 
+            // MeterSimulationDlg
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(477, 387);
+            this.Controls.Add(this.groupBox2);
+            this.Controls.Add(this.groupBox1);
+            this.Controls.Add(this.meterIDGroupBox);
+            this.Name = "MeterSimulationDlg";
+            this.Text = "MeterDialog";
+            this.meterIDGroupBox.ResumeLayout(false);
+            this.meterIDGroupBox.PerformLayout();
+            this.groupBox1.ResumeLayout(false);
+            this.groupBox1.PerformLayout();
+            ((System.ComponentModel.ISupportInitialize)(this.flowTrackBar)).EndInit();
+            this.groupBox2.ResumeLayout(false);
+            this.groupBox2.PerformLayout();
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.GroupBox meterIDGroupBox;
+        private System.Windows.Forms.TextBox meterIDTextBox;
+        private System.Windows.Forms.Label label3;
+        private System.Windows.Forms.Label label2;
+        private System.Windows.Forms.TextBox volumeUnitsTextBox;
+        private System.Windows.Forms.TextBox timeUnitsTextBox;
+        private System.Windows.Forms.Label label1;
+        private System.Windows.Forms.GroupBox groupBox1;
+        private System.Windows.Forms.TextBox flowm3phTextBox;
+        private System.Windows.Forms.TrackBar flowTrackBar;
+        private System.Windows.Forms.GroupBox groupBox2;
+        private System.Windows.Forms.Button setFlowButton;
+        private System.Windows.Forms.Timer timer1;
+        private System.Windows.Forms.TextBox lastUITickTextBox;
+        private System.Windows.Forms.Label label4;
+        private System.Windows.Forms.TextBox flowTextBox;
+        private System.Windows.Forms.TextBox volumeTextBox;
+        private System.Windows.Forms.TextBox timeTextBox;
+        private System.Windows.Forms.TextBox stateTextBox;
+        private System.Windows.Forms.Label label8;
+        private System.Windows.Forms.Label label7;
+        private System.Windows.Forms.Label label6;
+        private System.Windows.Forms.Label label5;
+    }
+}

DataStreamMeter/MeterSimulationDlg.cs

@@ -0,0 +1,91 @@
+using System;
+using System.Windows.Forms;
+
+namespace DataStreamMeter
+{
+    public partial class MeterSimulationDlg : Form
+    {
+        MeterSimulation meterSimulation;
+        double currentFlow;
+
+
+        public string MeterID;
+
+
+        public void OnMeterdata(MeterDataEventArgs args)
+        {
+            if (MeterDataHandler == null) return;
+            MeterDataHandler(null, args);
+        }
+        public event EventHandler<MeterDataEventArgs> MeterDataHandler;
+
+
+        /// <summary>
+        /// Default constructor with no meter
+        /// </summary>
+        public MeterSimulationDlg()
+            : this(null, string.Empty)
+        {
+        }
+
+        public MeterSimulationDlg(MeterSimulation meterSimulation, string meterID)
+        {
+            InitializeComponent();
+            this.meterSimulation = meterSimulation;
+            meterIDTextBox.Text = meterID;
+
+            currentFlow = 0;
+            flowm3phTextBox.Text = currentFlow.ToString();
+            flowTrackBar.Value = Convert.ToInt32(currentFlow);
+
+            MeterDataHandler += delegate(object sender, MeterDataEventArgs args)
+            {
+                if (InvokeRequired)
+                {
+                    Invoke(new EventHandler<MeterDataEventArgs>(DisplayMeterData), sender, args);
+                }
+                else
+                {
+                    DisplayMeterData(sender, args);
+                }
+            };
+
+            if (meterSimulation != null)
+            {
+                timer1.Enabled = true;
+                timer1.Start();
+            }
+        }
+
+        private void flowTrackBar_Scroll(object sender, EventArgs e)
+        {
+            currentFlow = flowTrackBar.Value;
+            flowm3phTextBox.Text = currentFlow.ToString("F2");
+        }
+
+        private void setFlowButton_Click(object sender, EventArgs e)
+        {
+            GetDblValueDlg dlg = new GetDblValueDlg("Enter flow in [m3/h] please", 0, 25.0);
+            if (dlg.ShowDialog() == DialogResult.OK)
+            {
+                currentFlow = dlg.DblValue;
+                flowm3phTextBox.Text = currentFlow.ToString();
+                flowTrackBar.Value = Convert.ToInt32(currentFlow);
+            }
+        }
+
+        private void timer1_Tick(object sender, EventArgs e)
+        {
+            lastUITickTextBox.Text = DateTime.Now.ToString("HH:mm:ss fff");
+            meterSimulation.TimerTick(currentFlow);
+        }
+
+        void DisplayMeterData(object sender, MeterDataEventArgs args)
+        {
+            stateTextBox.Text = args.State.ToString();
+            timeTextBox.Text = args.Time.ToString();
+            volumeTextBox.Text = args.Volume.ToString();
+            flowTextBox.Text = args.Flow.ToString();
+        }
+    }
+}

DataStreamMeter/MeterSimulationDlg.resx

@@ -0,0 +1,123 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <metadata name="timer1.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>17, 17</value>
+  </metadata>
+</root>

DataStreamMeter/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("DataStreamMeter")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("DataStreamMeter")]
+[assembly: AssemblyCopyright("Copyright ©  2020")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("8acd46eb-c84d-4199-9f40-7420b7ebabc2")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

DataStreamMeter/Sample.cs

@@ -0,0 +1,23 @@
+using System;
+
+namespace DataStreamMeter
+{
+    public class Sample
+    {
+        public readonly double Time;        /// In water meter time units
+        public readonly double Volume;      /// In water meter colume units
+        public readonly double Flow;        /// In water meter flow units
+
+        public Sample(double time, double volume, double flow)
+        {
+            Time = time;
+            Volume = volume;
+            Flow = flow;
+        }
+
+        public override string ToString()
+        {
+            return string.Format("time={0} volume={1} flow={2}", Time, Volume, Flow);
+        }
+    }
+}

DeviceTest/DeviceTestDlg.cs

@@ -645,7 +645,8 @@ namespace DeviceTest
 								MessageBoxIcon.Exclamation);
 
 				foreach (var dev in tbfDevices) dev.StopDevice();
-				tbfDevices.Clear();
+                foreach (var dev in tbfDevices) dev.StopDevice2();
+                tbfDevices.Clear();
 
 				startButton.Enabled = true;
 				stopButton.Enabled = false;
@@ -856,7 +857,8 @@ namespace DeviceTest
 			}
 
 			foreach (var d in tbfDevices) d.StopDevice();
-		}
+            foreach (var d in tbfDevices) d.StopDevice2();
+        }
 
 		private void stopButton_Click(object sender, EventArgs e)
 		{

Doc/FlyingStartMassCollectionTest.uxf

@@ -1,525 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<diagram program="umlet" version="12.2">
-  <zoom_level>8</zoom_level>
-  <element>
-    <type>com.umlet.element.Relation</type>
-    <coordinates>
-      <x>400</x>
-      <y>0</y>
-      <w>40</w>
-      <h>64</h>
-    </coordinates>
-    <panel_attributes>lt=&lt;-</panel_attributes>
-    <additional_attributes>24;48;24;24</additional_attributes>
-  </element>
-  <element>
-    <type>com.umlet.element.custom.InitialState</type>
-    <coordinates>
-      <x>416</x>
-      <y>8</y>
-      <w>16</w>
-      <h>16</h>
-    </coordinates>
-    <panel_attributes>i</panel_attributes>
-    <additional_attributes/>
-  </element>
-  <element>
-    <type>com.umlet.element.custom.State</type>
-    <coordinates>
-      <x>328</x>
-      <y>48</y>
-      <w>192</w>
-      <h>32</h>
-    </coordinates>
-    <panel_attributes>'Test Start' transition sequence</panel_attributes>
-    <additional_attributes/>
-  </element>
-  <element>
-    <type>com.umlet.element.Relation</type>
-    <coordinates>
-      <x>400</x>
-      <y>56</y>
-      <w>40</w>
-      <h>56</h>
-    </coordinates>
-    <panel_attributes>lt=&lt;-</panel_attributes>
-    <additional_attributes>24;40;24;24</additional_attributes>
-  </element>
-  <element>
-    <type>com.umlet.element.custom.RegionEndState</type>
-    <coordinates>
-      <x>416</x>
-      <y>96</y>
-      <w>16</w>
-      <h>16</h>
-    </coordinates>
-    <panel_attributes/>
-    <additional_attributes/>
-  </element>
-  <element>
-    <type>com.umlet.element.Relation</type>
-    <coordinates>
-      <x>400</x>
-      <y>88</y>
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Doc/MainSeq.uxf

@@ -1,261 +0,0 @@
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---
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-    <type>com.umlet.element.custom.Text</type>
-    <coordinates>
-      <x>290</x>
-      <y>520</y>
-      <w>160</w>
-      <h>20</h>
-    </coordinates>
-    <panel_attributes>'Cycle' or 'Test' selected
-</panel_attributes>
-    <additional_attributes/>
-  </element>
-</diagram>

Doc/TODO.txt

@@ -1,73 +0,0 @@
-Otazky:
--------
-- ako pouzit T6
-- co je 'T to Open' pri RV
-- na co sluzia VI2P, VI3P a VI4P
-
-
-TODO:
------
-- nefunguje pumpa P3
-- nahlad na cestu v procedure
-- purgeStart a purgeEnd --> transitionSteps/Sequences
-- horeuvedene pre RegulValve
-- volba procedury nie je zablokovana pocas testov
-- vsetky Target... v Process tabe
-- Hmotnosti:
-	1 netarovat, merat okamzitu,
-	2 nulovacia procedura na tlacitko manualne,
-	3 pri starte sa spytat ci vynulovat vahy
-- Preco sa nenacitaju zmeny v Test-e ???
-
-
-- pouzit oneskorenie na ventily
-- skontrolovat doc (freq v Hz)
-
-Demo version:
-
-- pouzit progress bary na vyber testu
-- vycistit Measurement
-- simulacia skonci pri druhom 'start_measurement'
-- pri simulacii sa meni mass pri merani end-mass (klapka by mala byt vypnuta!)
-
-- otvorit Proceduru (v dalsom okne v zamknutom stave) aj ked je okno Procedures zamknute
-- pridat seriove cisla do parametrov komponentov
-- zapamatavat si sirky stlpcov v PathsDlg, ... (aj inde)
-- skontroluj vsetky ListViewEx-y + skorsie spracovanie vysledkov (dolezite aj pre spravnu tvorbu noveho mena)
-- preco posledne okno skace
-- chyba spracovanie procedure / metrology2 Tol.Abzug, Fehl.Korr -+
-- vsetky mena stlpcov a tabov do Strings.xxx
-
-Testovanie na stanici:
-
-- pouzivat skutocne 'rvalves'
-- ked vyberiem priamo Q1, Q2, Q3 (poskonceni predchadzajuceho testu), neprepise sa obsah combo boxu
-- prislusne EtPulses by mali ist cez RegisterReader komponent + common RegisterReader pre Master
-- ako je to s WM0 ...
-- na zaciatku zmerat vahu a dovolit vypustit tanky
-- updatovat vahu - obrazok = je nespravna kapacita vahy
-- spracovanie vysledkov podla excelu: corr. na hustotu vzduchu (zavazie), corr. na hustotu vody v zav. od teploty
-- podpora pre zbieranie vysledkov
-- logovanie vysledkov do excelu
-- zastavit vodu na konci skusky
-- Pri nastavovani prietoku nie je nic vidno
-- pouzivat skutocne 'rvalves'
-- pri vytvarani testov vyberat cesty podla prietoku
-- ked sa zada cesta napisanim mena = skontrolovat
-- zapamatat si stav ventilu pri prietoku
-- nulovanie = nulovanie vahy
-- zmenit text: tarovanie -> vypustanie 
-
-- pripravit IDC100: !ReadRegisterOp, Idc100.GetValue-SetValue (na konci), GetState a ukoncenie operacie
-- sub-sekvencie pre Q-set a metody
-- zobrazit typizovanu schemu
-
-Neskor:
-
-- nevidno ci su neulozene zmeny
-- upozornenie pri cancel ak su neulozene zmeny
-- spravne updatovat tlacitka ked su FixedItems (FixedRows)
-- ked odomknem Komponenty tak sa zrusi vyber
-- vaha ToString - prve zobrazit capacity
-- moznost menenia poradia aj v components
-- rozdelit ventily podla ciest?

Doc/design.txt

@@ -1,91 +0,0 @@
-Assumption
-----------
- The installation consists of one or more similar test benches. Each test bench is controlled by one PC-based computer. In addition, one or more PC-s can run the same application and manipulated data shared by the test benches (e.g. PC located in offices). All PC-s run the same version of software (this is a must now - Munich - in the future we can try to deal with backward/forward compatibility issues).
-
-Development environment
------------------------
- - Visual Studio 2012 Professional
- - Database: MySQL (???)
- 
-User iterface
--------------
- - WindowsFormsApplication
- - Main part of the window occupies a tab control with hidden tabs
-   (see http://weblogs.asp.net/kdente/archive/2005/11/14/430591.aspx)
-   Tabs swithing is done programatically
- 
-   Tabs:
-   
-   Procedure
-    - Procedure Info (summary, header)
-	- Procedure History (changes)
-	- Procedure Metrology
-	- Procedure Technical
-	- Procedure Purge
-	- Procedure End
-	- Procedure Adjustment
-	- Procedure View
-	- Procedure Inputs
-   Home
-   Insert
-   Results
-	- Results
-	- Results D
-	- Meters Ch
-	- Temp Ch
-	- Pressure
-   Bench parameters
-    - Technical
-	- Balance
-	- Temperature
-	- Pressure
-	- Flowmeter
-	- Density
-   Logs
-	
-	
- 
-Sensus Testbench Framework application settings consist of
-----------------------------------------------------------
- S1. Local settings stored on each PC
-		S1.1  language settings, appearance, etc. (no other impact on the system function) 
-		S1.2  specification of databases used to store other settings (see 2.)
-	There might be several sets of DB settings (1.2) when one should be able to access more test benches. When starting the system, this is indicated on the login screen as 'Test bench'/'Pruefstation'.
-
- S2. Settings stored in databases:
-		S2.1 'users' (typically shared between all benches - centralized access control)
-		S2.2 'watermeter_types' info (typically shared between more benches)
-		S2.3 'test_procedures' (typically shared between more identical benches)
-		S2.4 'metrological_parameters' of the system (always unique for each system, not shared)
-		S2.5 'watermeters' info (typically centralized / shared)
-		S2.6 'test_results' (typically centralized / shared)
-		etc.
-	The databases might be running either on the local PC or remote,
-	each database might be used by a single bench, or shared by more test benches. This configured in 1.2.
-
-Application can be used to:
----------------------------
- A1. Change local settings (S1.1, S1.2)
- A2. Change settings stored in the databases
- A3. Control system and run test procedures - this is only possible on PC-s controlling the benches. When procedure is started, local copy of necessary information from the DB-s is made to avoid problems.
- 
- User access control:
- --------------------
-	U1. Access to
-		U1.1 information read
-		U1.2 information write/modify
-		U1.3 action start
-		is controlled by an access control mechanism.
-	U2. Users
-	U3. Groups
-		Each user is a member of one or more groups. In case needed, a group  with a single user is created. Access to information/actions is granted to groups. 
-		Muenich: Grooups are 'Tester',
-							 'Testing specialist',
-							 'Head of lab'
-							 'Maintenance specialist'
-							 'Metrologist'
-							 'Calibration specialist'
-	U4. When necessary, system prompts user to authenticate himself/herself (login dialog). 		Authentication is invalidated as follows (optional):
-		U4.1 When user closes the dialog, which was protected.
-		U4.2 After certain time period
-		U4.3 Never

Doc/mylog4net.xml

@@ -1,25 +0,0 @@
-<log4net>
-    <!-- A1 is set to be a ConsoleAppender -->
-	<appender name="A1" type="log4net.Appender.ConsoleAppender">
-        <!-- A1 uses PatternLayout -->
-        <layout type="log4net.Layout.PatternLayout">
-            <!-- Print the date in ISO 8601 format -->
-            <conversionPattern value="%date [%thread] %-5level %logger %ndc - %message%newline" />
-        </layout>
-	</appender>
-    
-    <!-- Set root logger level to DEBUG and its only appender to A1 -->
-    <root>
-        <level value="DEBUG" />
-        <appender-ref ref="A1" />
-    </root>
-	
-	<!-- Print only messages of level WARN or above in the package NHibernate -->
-    <logger name="NHibernate">
-        <level value="WARN" />
-    </logger>
-    <logger name="TestBenchFramework.BenchControl.StateMachine">
-        <level value="WARN" />
-    </logger>
-
-</log4net>

Doc/sample-sequence-of-calls.txt

@@ -1,27 +0,0 @@
-foreach (var device in devices) device.RunDeviceBefore();  . . . . . .  in StateMachine.Worker()
-State.Create(...).AddOperation(...).AddOperation(...).EnterState() . .  in the sequence in Execute(...)
-
-foreach (var device in devices) device.RunDeviceAfter(); . . . . . . .  in WaitRunDevsRunOps()
-WaitNextTick()  (may throw QuitStateMachineException)  . . . . . . . .  in WaitRunDevsRunOps()
-foreach (var device in devices) device.RunDeviceBefore();  . . . . . .  in WaitRunDevsRunOps()
-IList<Event> events = State.RunOperations(); . . . . . . . . . . . . .  in WaitRunDevsRunOps()
-
-foreach (var device in devices) device.RunDeviceAfter(); . . . . . . .  in WaitRunDevsRunOps()
-WaitNextTick()  (may throw QuitStateMachineException)  . . . . . . . .  in WaitRunDevsRunOps()
-foreach (var device in devices) device.RunDeviceBefore();  . . . . . .  in WaitRunDevsRunOps()
-IList<Event> events = State.RunOperations(); . . . . . . . . . . . . .  in WaitRunDevsRunOps()
-
-State.Create(...).AddOperation(...).AddOperation(...).EnterState() . .  in the sequence in Execute(...)
-
-foreach (var device in devices) device.RunDeviceAfter(); . . . . . . .  in WaitRunDevsRunOps()
-WaitNextTick()  (may throw QuitStateMachineException)  . . . . . . . .  in WaitRunDevsRunOps()
-foreach (var device in devices) device.RunDeviceBefore();  . . . . . .  in WaitRunDevsRunOps()
-IList<Event> events = State.RunOperations(); . . . . . . . . . . . . .  in WaitRunDevsRunOps()
-
-foreach (var device in devices) device.RunDeviceAfter(); . . . . . . .  in WaitRunDevsRunOps()
-WaitNextTick()  (assume QuitStateMachineException thrown)  . . . . . .  in WaitRunDevsRunOps()
-foreach (var device in devices) device.RunDeviceBefore();  . . . . . .  in StateMachine.Worker() catch()
-State.RunOperations(); . . . . . . . . . . . . . . . . . . . . . . . .  in StateMachine.Worker() catch()
-State.Empty.EnterState();  . . . . . . . . . . . . . . . . . . . . . .  in StateMachine.Worker() catch()
-foreach (var device in devices) device.RunDeviceAfter(); . . . . . . .  in StateMachine.Worker() catch()
-foreach (var device in devices) device.StopDevice(); . . . . . . . . .  in StateMachine.Worker() catch()

Doc/show-hide-tabs.txt

@@ -1,11 +0,0 @@
-Showing tabs in the designer:
- - select mainTabControl
- - in Properies change SizeMode to normal
- - in Properies change ItemSize to 0; 20
- 
-Hiding tabs in the designer:
-  - select mainTabControl
-  - in Properies change SizeMode to Fixed
-  - in Poperties change ItemSize to 0; 1
-  
- 

Doc/user-admin-password-hash.txt

@@ -1,4 +0,0 @@
-af242843887f3bdcc52e485483356eaccd37ba67a35941530bd195a8310fc7d5aca8560576dfb62ad5a4bd2df789a5e8be068e62e7c976d6eeed8d63abbd9909
-
-
-= staratura

EventViewer/App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>

EventViewer/EventViewer.csproj

@@ -0,0 +1,148 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{CF5BE6CD-A224-4B58-950D-14040E7A3C6A}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>EventViewer</RootNamespace>
+    <AssemblyName>EventViewer</AssemblyName>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="FluentNHibernate, Version=2.0.3.0, Culture=neutral, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\packages\FluentNHibernate.2.0.3.0\lib\net40\FluentNHibernate.dll</HintPath>
+    </Reference>
+    <Reference Include="Iesi.Collections, Version=4.0.0.0, Culture=neutral, PublicKeyToken=aa95f207798dfdb4, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\packages\Iesi.Collections.4.0.0.4000\lib\net40\Iesi.Collections.dll</HintPath>
+    </Reference>
+    <Reference Include="MySql.Data">
+      <HintPath>..\packages\MySql.Data.6.6.5\lib\net40\MySql.Data.dll</HintPath>
+    </Reference>
+    <Reference Include="NHibernate, Version=4.0.0.4000, Culture=neutral, PublicKeyToken=aa95f207798dfdb4, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\packages\NHibernate.4.0.4.4000\lib\net40\NHibernate.dll</HintPath>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Security" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Deployment" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="EventViewerWnd.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="EventViewerWnd.Designer.cs">
+      <DependentUpon>EventViewerWnd.cs</DependentUpon>
+    </Compile>
+    <Compile Include="Forms\EventDetailsDlg.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="Forms\EventDetailsDlg.Designer.cs">
+      <DependentUpon>EventDetailsDlg.cs</DependentUpon>
+    </Compile>
+    <Compile Include="Forms\SettingsDlg.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="Forms\SettingsDlg.designer.cs">
+      <DependentUpon>SettingsDlg.cs</DependentUpon>
+    </Compile>
+    <Compile Include="LocalSettings.cs" />
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Resources\Strings.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DesignTime>True</DesignTime>
+      <DependentUpon>Strings.resx</DependentUpon>
+    </Compile>
+    <EmbeddedResource Include="EventViewerWnd.resx">
+      <DependentUpon>EventViewerWnd.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Forms\EventDetailsDlg.resx">
+      <DependentUpon>EventDetailsDlg.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Forms\SettingsDlg.resx">
+      <DependentUpon>SettingsDlg.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+    <Compile Include="Properties\Resources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Resources.resx</DependentUpon>
+    </Compile>
+    <EmbeddedResource Include="Resources\Strings.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Strings.Designer.cs</LastGenOutput>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Resources\Strings.sk.resx" />
+    <None Include="Properties\Settings.settings">
+      <Generator>SettingsSingleFileGenerator</Generator>
+      <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+    </None>
+    <Compile Include="Properties\Settings.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Settings.settings</DependentUpon>
+      <DesignTimeSharedInput>True</DesignTimeSharedInput>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\Common\Common.csproj">
+      <Project>{c8939821-ba5c-4988-a3d0-bf53b74865c7}</Project>
+      <Name>Common</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\Events\Events.csproj">
+      <Project>{5d9b49e3-cdf9-4a27-80b4-58141d0eb0e0}</Project>
+      <Name>Events</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\Users\Users.csproj">
+      <Project>{6e5cb0e9-e1b6-4e5d-ac6e-b1049e180f2b}</Project>
+      <Name>Users</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup />
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

EventViewer/EventViewerWnd.Designer.cs

@@ -0,0 +1,186 @@
+namespace EventViewer
+{
+    partial class EventViewerWnd
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.splitContainer1 = new System.Windows.Forms.SplitContainer();
+            this.userLoginButton = new System.Windows.Forms.Button();
+            this.eventsSelectionGroupBox = new System.Windows.Forms.GroupBox();
+            this.recentEventsRadioButton = new System.Windows.Forms.RadioButton();
+            this.unreadEventsRadioButton = new System.Windows.Forms.RadioButton();
+            this.allEventsRadioButton = new System.Windows.Forms.RadioButton();
+            this.settingsButton = new System.Windows.Forms.Button();
+            this.eventsListView = new Common.UIControls.ListViewEx();
+            ((System.ComponentModel.ISupportInitialize)(this.splitContainer1)).BeginInit();
+            this.splitContainer1.Panel1.SuspendLayout();
+            this.splitContainer1.Panel2.SuspendLayout();
+            this.splitContainer1.SuspendLayout();
+            this.eventsSelectionGroupBox.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // splitContainer1
+            // 
+            this.splitContainer1.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.splitContainer1.FixedPanel = System.Windows.Forms.FixedPanel.Panel1;
+            this.splitContainer1.IsSplitterFixed = true;
+            this.splitContainer1.Location = new System.Drawing.Point(0, 0);
+            this.splitContainer1.Name = "splitContainer1";
+            this.splitContainer1.Orientation = System.Windows.Forms.Orientation.Horizontal;
+            // 
+            // splitContainer1.Panel1
+            // 
+            this.splitContainer1.Panel1.Controls.Add(this.userLoginButton);
+            this.splitContainer1.Panel1.Controls.Add(this.eventsSelectionGroupBox);
+            this.splitContainer1.Panel1.Controls.Add(this.settingsButton);
+            // 
+            // splitContainer1.Panel2
+            // 
+            this.splitContainer1.Panel2.Controls.Add(this.eventsListView);
+            this.splitContainer1.Size = new System.Drawing.Size(863, 592);
+            this.splitContainer1.SplitterDistance = 100;
+            this.splitContainer1.TabIndex = 0;
+            // 
+            // userLoginButton
+            // 
+            this.userLoginButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
+            this.userLoginButton.Location = new System.Drawing.Point(636, 17);
+            this.userLoginButton.Name = "userLoginButton";
+            this.userLoginButton.Size = new System.Drawing.Size(100, 37);
+            this.userLoginButton.TabIndex = 4;
+            this.userLoginButton.Text = "User login";
+            this.userLoginButton.UseVisualStyleBackColor = true;
+            this.userLoginButton.Click += new System.EventHandler(this.userLoginButton_Click);
+            // 
+            // eventsSelectionGroupBox
+            // 
+            this.eventsSelectionGroupBox.Controls.Add(this.recentEventsRadioButton);
+            this.eventsSelectionGroupBox.Controls.Add(this.unreadEventsRadioButton);
+            this.eventsSelectionGroupBox.Controls.Add(this.allEventsRadioButton);
+            this.eventsSelectionGroupBox.Location = new System.Drawing.Point(22, 5);
+            this.eventsSelectionGroupBox.Name = "eventsSelectionGroupBox";
+            this.eventsSelectionGroupBox.Size = new System.Drawing.Size(269, 92);
+            this.eventsSelectionGroupBox.TabIndex = 3;
+            this.eventsSelectionGroupBox.TabStop = false;
+            this.eventsSelectionGroupBox.Text = "Select events";
+            // 
+            // recentEventsRadioButton
+            // 
+            this.recentEventsRadioButton.AutoSize = true;
+            this.recentEventsRadioButton.Location = new System.Drawing.Point(24, 42);
+            this.recentEventsRadioButton.Name = "recentEventsRadioButton";
+            this.recentEventsRadioButton.Size = new System.Drawing.Size(95, 17);
+            this.recentEventsRadioButton.TabIndex = 1;
+            this.recentEventsRadioButton.TabStop = true;
+            this.recentEventsRadioButton.Text = "Recent events";
+            this.recentEventsRadioButton.UseVisualStyleBackColor = true;
+            this.recentEventsRadioButton.CheckedChanged += new System.EventHandler(this.recentEventsRadioButton_CheckedChanged);
+            // 
+            // unreadEventsRadioButton
+            // 
+            this.unreadEventsRadioButton.AutoSize = true;
+            this.unreadEventsRadioButton.Location = new System.Drawing.Point(24, 20);
+            this.unreadEventsRadioButton.Name = "unreadEventsRadioButton";
+            this.unreadEventsRadioButton.Size = new System.Drawing.Size(120, 17);
+            this.unreadEventsRadioButton.TabIndex = 0;
+            this.unreadEventsRadioButton.TabStop = true;
+            this.unreadEventsRadioButton.Text = "Unconfirmed events";
+            this.unreadEventsRadioButton.UseVisualStyleBackColor = true;
+            this.unreadEventsRadioButton.CheckedChanged += new System.EventHandler(this.unreadEventsRadioButton_CheckedChanged);
+            // 
+            // allEventsRadioButton
+            // 
+            this.allEventsRadioButton.AutoSize = true;
+            this.allEventsRadioButton.Location = new System.Drawing.Point(24, 64);
+            this.allEventsRadioButton.Name = "allEventsRadioButton";
+            this.allEventsRadioButton.Size = new System.Drawing.Size(71, 17);
+            this.allEventsRadioButton.TabIndex = 2;
+            this.allEventsRadioButton.TabStop = true;
+            this.allEventsRadioButton.Text = "All events";
+            this.allEventsRadioButton.UseVisualStyleBackColor = true;
+            this.allEventsRadioButton.CheckedChanged += new System.EventHandler(this.allEventsRadioButton_CheckedChanged);
+            // 
+            // settingsButton
+            // 
+            this.settingsButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
+            this.settingsButton.Location = new System.Drawing.Point(748, 17);
+            this.settingsButton.Name = "settingsButton";
+            this.settingsButton.Size = new System.Drawing.Size(100, 37);
+            this.settingsButton.TabIndex = 0;
+            this.settingsButton.Text = "Settings";
+            this.settingsButton.UseVisualStyleBackColor = true;
+            this.settingsButton.Click += new System.EventHandler(this.settingsButton_Click);
+            // 
+            // eventsListView
+            // 
+            this.eventsListView.AllowColumnReorder = true;
+            this.eventsListView.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.eventsListView.DoubleClickActivation = false;
+            this.eventsListView.FullRowSelect = true;
+            this.eventsListView.GridLines = true;
+            this.eventsListView.Location = new System.Drawing.Point(0, 0);
+            this.eventsListView.Name = "eventsListView";
+            this.eventsListView.Size = new System.Drawing.Size(863, 488);
+            this.eventsListView.TabIndex = 0;
+            this.eventsListView.UseCompatibleStateImageBehavior = false;
+            this.eventsListView.View = System.Windows.Forms.View.Details;
+            this.eventsListView.ColumnClick += new System.Windows.Forms.ColumnClickEventHandler(this.eventsListView_ColumnClick);
+            this.eventsListView.MouseDoubleClick += new System.Windows.Forms.MouseEventHandler(this.eventsListView_MouseDoubleClick);
+            // 
+            // EventViewerWnd
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(863, 592);
+            this.Controls.Add(this.splitContainer1);
+            this.Name = "EventViewerWnd";
+            this.Text = "Event viewer";
+            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.EventViewerWnd_FormClosing);
+            this.Load += new System.EventHandler(this.EventViewerWnd_Load);
+            this.splitContainer1.Panel1.ResumeLayout(false);
+            this.splitContainer1.Panel2.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)(this.splitContainer1)).EndInit();
+            this.splitContainer1.ResumeLayout(false);
+            this.eventsSelectionGroupBox.ResumeLayout(false);
+            this.eventsSelectionGroupBox.PerformLayout();
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.SplitContainer splitContainer1;
+        private System.Windows.Forms.Button settingsButton;
+        private Common.UIControls.ListViewEx eventsListView;
+        private System.Windows.Forms.GroupBox eventsSelectionGroupBox;
+        private System.Windows.Forms.RadioButton unreadEventsRadioButton;
+        private System.Windows.Forms.RadioButton allEventsRadioButton;
+        private System.Windows.Forms.Button userLoginButton;
+        private System.Windows.Forms.RadioButton recentEventsRadioButton;
+    }
+}
+

EventViewer/EventViewerWnd.cs

@@ -0,0 +1,364 @@
+///
+/// Copyright (c) 2020 Sensus Slovensko a.s.
+///
+using System;
+using System.Collections.Generic;
+using System.Windows.Forms;
+using NHibernate;
+using Common.UIControls;
+using Events;
+using Events.Entities;
+using EventViewer.Resources;
+using System.Drawing;
+
+namespace EventViewer
+{
+    public partial class EventViewerWnd : Form
+    {
+        public const int Dpi100pct = 96;
+        int currentDpi;
+
+        enum Column
+        {
+            DateTime,
+            Bench,
+            Source,
+            Class,
+            Severity,
+            Message,
+            Count
+        }
+
+        ISession session;
+        IList<Subscriber> subscribers;
+        IList<Event> events;
+        SortOrder sortOrder = SortOrder.Ascending;
+        int sortColumn = -1;                        /// 0-based index of column to be used for sorting
+
+        EViewerOption eViewerOption;
+        string loginUserName;
+        string currentUser
+        {
+            get
+            {
+                if (!string.IsNullOrEmpty(loginUserName))
+                {
+                    return loginUserName;
+                }
+                else if (Program.LocalSettings != null && Program.LocalSettings.NonAnonymousAccess && !string.IsNullOrEmpty(Program.LocalSettings.UserName))
+                {
+                    return Program.LocalSettings.UserName;
+                }
+                else
+                {
+                    return null;
+                }
+            }
+        }
+
+        /// The following 3 private variables determine whether list of events is redrawn
+        EViewerOption lastEViewerOption;
+        string lastUser;
+        int lastRecentTimePeriodInDays;
+
+
+        public EventViewerWnd()
+        {
+            InitializeComponent();
+            loginUserName = null;
+            eViewerOption = string.IsNullOrEmpty(currentUser) ? EViewerOption.RecentEvents : EViewerOption.UnreadEvents;
+            lastEViewerOption = EViewerOption.Undefined;
+            lastRecentTimePeriodInDays = 0;
+            Localize();
+            currentDpi = (int)this.CreateGraphics().DpiX;
+            LocalSettings ls = Program.LocalSettings;
+            eventsListView.Columns.Add(Strings.Date_time, (ls.ColWid1 > 0) ? ls.ColWid1 :  80 * currentDpi / Dpi100pct);
+            eventsListView.Columns.Add(Strings.Bench,     (ls.ColWid2 > 0) ? ls.ColWid2 :  50 * currentDpi / Dpi100pct);
+            eventsListView.Columns.Add(Strings.Source,    (ls.ColWid3 > 0) ? ls.ColWid3 : 100 * currentDpi / Dpi100pct);
+            eventsListView.Columns.Add(Strings.Class,     (ls.ColWid4 > 0) ? ls.ColWid4 :  60 * currentDpi / Dpi100pct);
+            eventsListView.Columns.Add(Strings.Severity,  (ls.ColWid5 > 0) ? ls.ColWid5 :  70 * currentDpi / Dpi100pct);
+            eventsListView.Columns.Add(Strings.Message,   (ls.ColWid6 > 0) ? ls.ColWid6 : 500 * currentDpi / Dpi100pct);
+            LoadUISettings();
+        }
+
+        void Localize()
+        {
+            RedrawTitle();
+            eventsSelectionGroupBox.Text = Strings.Event_selection;
+            unreadEventsRadioButton.Text = Strings.Unread_events;
+            recentEventsRadioButton.Text = Strings.Recent_events;
+            allEventsRadioButton.Text = Strings.All_events;
+            settingsButton.Text = Strings.Settings;
+            userLoginButton.Text = Strings.User_login;
+        }
+
+        void RedrawTitle()
+        {
+            Text = string.Format("{0} {1} {2}", Strings.Event_viewer, Program.Version, !string.IsNullOrEmpty(currentUser) ? string.Format("({0})", currentUser) : string.Empty);
+        }
+
+        private void EventViewerWnd_Load(object sender, EventArgs e)
+        {
+            try
+            {
+                DB.DbType = DBType.MySql;
+                DB.ConnectionString = Program.LocalSettings.ConnectionString;
+                session = DB.CreateSession();
+                subscribers = session.QueryOver<Subscriber>().List();
+                unreadEventsRadioButton.Checked = true;
+            }
+            catch (Exception exc)
+            {
+                MessageBox.Show(string.Format("{0}{1}{2}", Strings.Cannot_connect_to_the_database, Environment.NewLine, exc.Message),
+                                Strings.Error, MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
+            }
+        }
+
+        private void unreadEventsRadioButton_CheckedChanged(object sender, EventArgs e)
+        {
+            if (unreadEventsRadioButton.Checked) eViewerOption = EViewerOption.UnreadEvents;
+            Redraw();
+        }
+
+        private void recentEventsRadioButton_CheckedChanged(object sender, EventArgs e)
+        {
+            if (recentEventsRadioButton.Checked) eViewerOption = EViewerOption.RecentEvents;
+            Redraw();
+        }
+
+        private void allEventsRadioButton_CheckedChanged(object sender, EventArgs e)
+        {
+            if (allEventsRadioButton.Checked) eViewerOption = EViewerOption.AllEvents;
+            Redraw();
+        }
+
+        /// <summary>
+        /// Redraw events
+        /// </summary>
+        /// <param name="allEvents">true = Display all events (also confirmed read)</param>
+        void Redraw(bool redrawAlways = false)
+        {
+            int days = Program.LocalSettings.RecentTimeDays;
+
+            if (!redrawAlways &&
+                lastEViewerOption == eViewerOption &&
+                lastUser == currentUser &&
+                lastRecentTimePeriodInDays == days)
+            {
+                return;     /// Do not redraw the list of events
+            }
+
+            try
+            {
+                if (eViewerOption == EViewerOption.AllEvents)
+                {
+                    /// Read all events
+                    events = session.QueryOver<Event>().List();
+                }
+                else if (eViewerOption == EViewerOption.RecentEvents)
+                {
+                    /// Read events from tha last 'recentTimePeriodInDays' days
+                    events = session.QueryOver<Event>()
+                                    .Where(e => (e.TimeStamp >= DateTime.Now - new TimeSpan(days, 0, 0, 0)))
+                                    .List();
+                }
+                else if (!string.IsNullOrEmpty(loginUserName))
+                {
+                    /// Read unread events of the specified user
+                    events = session.QueryOver<Event>()
+                                    .JoinQueryOver<Subscriber>(e => e.Subscribers)
+                                    .Where(s => (s.Name == string.Format("User_{0}", loginUserName)))
+                                    .List<Event>();
+                }
+                else
+                {
+                    /// Read unread events of all users
+                    events = session.QueryOver<Event>()
+                                    .JoinQueryOver<Subscriber>(e => e.Subscribers)
+                                    .List<Event>();
+
+                    for (int i = 0; i < events.Count; i++)
+                    {
+                        for (int j = events.Count - 1; j > i; j--)
+                        {
+                            if (events[i].Id == events[j].Id) events.RemoveAt(j);
+                        }
+                    }
+                }
+
+                eventsListView.Items.Clear();
+                foreach (var e in events) AddOne(e);
+
+                lastEViewerOption = eViewerOption;
+                lastUser = currentUser;
+                lastRecentTimePeriodInDays = days;
+            }
+            catch (Exception exc)
+            {
+                MessageBox.Show(string.Format("{0}{1}{2}", Strings.Cannot_connect_to_the_database, Environment.NewLine, exc.Message),
+                                Strings.Error, MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
+            }
+        }
+
+        void AddOne(Event evnt)
+        {
+            ListViewItem lvi = new ListViewItem(evnt.TimeStamp.ToString("dd.MM.yyyy HH:mm"));
+            lvi.Tag = evnt;
+            lvi.SubItems.Add(evnt.Bench);
+            lvi.SubItems.Add(evnt.Source);
+            lvi.SubItems.Add(evnt.EventClass.ToString());
+            {
+                lvi.UseItemStyleForSubItems = false;
+                lvi.SubItems.Add(evnt.Severity.ToString());
+                lvi.SubItems[lvi.SubItems.Count - 1].BackColor = Utils.GetSeverityColor(evnt.Severity);
+                lvi.SubItems[lvi.SubItems.Count - 1].ForeColor = Utils.GetSeverityColor(evnt.Severity, true);
+            }
+            lvi.SubItems.Add(evnt.Message);
+            eventsListView.Items.Add(lvi);
+        }
+
+        private void eventsListView_ColumnClick(object sender, ColumnClickEventArgs e)
+        {
+            if (e.Column == sortColumn)
+            {
+                sortOrder = (sortOrder == SortOrder.Ascending) ? SortOrder.Descending : SortOrder.Ascending;
+            }
+            else
+            {
+                /// Clicked on another column header => set sortOrder to SortOrder.Ascending
+                sortColumn = e.Column;
+                sortOrder = SortOrder.Ascending;
+            }
+
+            switch ((Column)sortColumn)
+            {
+                default:
+                case Column.DateTime:
+                    eventsListView.ListViewItemSorter = new LviDateTimeColumnComparer(sortColumn, sortOrder);
+                    break;
+                case Column.Bench:
+                case Column.Source:
+                case Column.Class:
+                case Column.Severity:
+                case Column.Message:
+                    eventsListView.ListViewItemSorter = new LviTextColumnComparer(sortColumn, sortOrder);
+                    break;
+            }
+
+            eventsListView.SetSortIcon(sortColumn, sortOrder);
+            eventsListView.Sort();
+        }
+
+        private void eventsListView_MouseDoubleClick(object sender, MouseEventArgs e)
+        {
+            if (eventsListView.SelectedIndices.Count != 1) return;
+            Event evnt = eventsListView.SelectedItems[0].Tag as Events.Entities.Event;
+            if (evnt == null) return;
+            bool enableConfirmReadButton = (session != null) && (eViewerOption == EViewerOption.UnreadEvents) && !string.IsNullOrEmpty(currentUser);
+
+            if ((new Forms.EventDetailsDlg(evnt, enableConfirmReadButton)).ShowDialog() == DialogResult.OK)
+            {
+                /// Reading selected event was confirmed => delete subscriber from this event.Subscribers
+                foreach (var s in subscribers)
+                {
+                    if (s.Name == string.Format("User_{0}", currentUser))
+                    {
+                        session.CreateSQLQuery(string.Format("DELETE FROM `eventsubscriber` WHERE Event_id = {0} AND Subscriber_id = {1};", evnt.Id, s.Id))
+                               .ExecuteUpdate();
+                        session.Flush();
+                        Redraw(true);
+                        break;
+                    }
+                }
+            }
+        }
+
+        private void settingsButton_Click(object sender, EventArgs e)
+        {
+            //Users.Entities.GID[] groupsWithAccess = new Users.Entities.GID[] { Users.Entities.GID.Administrators };
+            Users.Forms.LoginDlg dlg = new Users.Forms.LoginDlg(true);
+            if (dlg.ShowDialog() == DialogResult.OK)
+            {
+                if ((new Forms.SettingsDlg()).ShowDialog() == DialogResult.OK)
+                {
+                    Close();
+                }
+            }
+        }
+
+        private void userLoginButton_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                Users.GlobalData.RemoteUsersDB = new Users.DBSettings(Users.Entities.DBType.MySql, Program.LocalSettings.UsersDBConnString);
+                Users.Forms.LoginDlg dlg = new Users.Forms.LoginDlg();
+                if (dlg.ShowDialog() == DialogResult.OK)
+                {
+                    loginUserName = dlg.UserName;
+                    RedrawTitle();
+                    Redraw();
+                }
+            }
+            catch (Exception)
+            {
+            }
+        }
+
+        private void EventViewerWnd_FormClosing(object sender, FormClosingEventArgs e)
+        {
+            SaveUISettings();
+        }
+
+        private void LoadUISettings()
+        {
+            LocalSettings ls = Program.LocalSettings;
+            if (ls != null)
+            {
+                WindowState = (ls.WndMaximized ? FormWindowState.Maximized : FormWindowState.Normal);
+                Width = (ls.WndWidth > 0) ? ls.WndWidth : 800;
+                Height = (ls.WndHeight > 0) ? ls.WndHeight : 420;
+                Left = (ls.WndLeft != 0) ? ls.WndLeft : 150;
+                Top = (ls.WndTop != 0) ? ls.WndTop : 150;
+            }
+        }
+
+        private void SaveUISettings()
+        {
+            /// Obtain ProcedureDlg dimensions, etc.
+            bool isMaximized = (WindowState == FormWindowState.Maximized);
+            int left = (WindowState == FormWindowState.Normal) ? Location.X : RestoreBounds.Left;
+            int top = (WindowState == FormWindowState.Normal) ? Location.Y : RestoreBounds.Top;
+            int width = (WindowState == FormWindowState.Normal) ? Size.Width : RestoreBounds.Width;
+            int height = (WindowState == FormWindowState.Normal) ? Size.Height : RestoreBounds.Height;
+
+            LocalSettings ls = Program.LocalSettings;
+
+            if (ls != null && (ls.WndMaximized != isMaximized ||
+                               ls.WndLeft != left ||
+                               ls.WndTop != top ||
+                               ls.WndWidth != width ||
+                               ls.WndHeight != height ||
+                               ls.ColWid1 != eventsListView.Columns[0].Width ||
+                               ls.ColWid2 != eventsListView.Columns[1].Width ||
+                               ls.ColWid3 != eventsListView.Columns[2].Width ||
+                               ls.ColWid4 != eventsListView.Columns[3].Width ||
+                               ls.ColWid5 != eventsListView.Columns[4].Width ||
+                               ls.ColWid6 != eventsListView.Columns[5].Width))
+            {
+                /// At least one ProcedureDlg dimension differs => Update local settings and save them
+                ls.WndMaximized = isMaximized;
+                ls.WndLeft = left;
+                ls.WndTop = top;
+                ls.WndWidth = width;
+                ls.WndHeight = height;
+                ls.ColWid1 = eventsListView.Columns[0].Width;
+                ls.ColWid2 = eventsListView.Columns[1].Width;
+                ls.ColWid3 = eventsListView.Columns[2].Width;
+                ls.ColWid4 = eventsListView.Columns[3].Width;
+                ls.ColWid5 = eventsListView.Columns[4].Width;
+                ls.ColWid6 = eventsListView.Columns[5].Width;
+                ls.Save();
+            }
+        }
+    }
+}

EventViewer/EventViewerWnd.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

EventViewer/Forms/EventDetailsDlg.Designer.cs

@@ -0,0 +1,232 @@
+namespace EventViewer.Forms
+{
+    partial class EventDetailsDlg
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.label1 = new System.Windows.Forms.Label();
+            this.label2 = new System.Windows.Forms.Label();
+            this.label3 = new System.Windows.Forms.Label();
+            this.label4 = new System.Windows.Forms.Label();
+            this.label5 = new System.Windows.Forms.Label();
+            this.label6 = new System.Windows.Forms.Label();
+            this.label7 = new System.Windows.Forms.Label();
+            this.textBox1 = new System.Windows.Forms.TextBox();
+            this.textBox2 = new System.Windows.Forms.TextBox();
+            this.textBox3 = new System.Windows.Forms.TextBox();
+            this.textBox4 = new System.Windows.Forms.TextBox();
+            this.textBox5 = new System.Windows.Forms.TextBox();
+            this.textBox6 = new System.Windows.Forms.TextBox();
+            this.textBox7 = new System.Windows.Forms.TextBox();
+            this.closeButton = new System.Windows.Forms.Button();
+            this.confirmReadButton = new System.Windows.Forms.Button();
+            this.SuspendLayout();
+            // 
+            // label1
+            // 
+            this.label1.AutoSize = true;
+            this.label1.Location = new System.Drawing.Point(13, 17);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(35, 13);
+            this.label1.TabIndex = 0;
+            this.label1.Text = "label1";
+            // 
+            // label2
+            // 
+            this.label2.AutoSize = true;
+            this.label2.Location = new System.Drawing.Point(13, 44);
+            this.label2.Name = "label2";
+            this.label2.Size = new System.Drawing.Size(35, 13);
+            this.label2.TabIndex = 1;
+            this.label2.Text = "label2";
+            // 
+            // label3
+            // 
+            this.label3.AutoSize = true;
+            this.label3.Location = new System.Drawing.Point(13, 71);
+            this.label3.Name = "label3";
+            this.label3.Size = new System.Drawing.Size(35, 13);
+            this.label3.TabIndex = 2;
+            this.label3.Text = "label3";
+            // 
+            // label4
+            // 
+            this.label4.AutoSize = true;
+            this.label4.Location = new System.Drawing.Point(13, 98);
+            this.label4.Name = "label4";
+            this.label4.Size = new System.Drawing.Size(35, 13);
+            this.label4.TabIndex = 3;
+            this.label4.Text = "label4";
+            // 
+            // label5
+            // 
+            this.label5.AutoSize = true;
+            this.label5.Location = new System.Drawing.Point(13, 125);
+            this.label5.Name = "label5";
+            this.label5.Size = new System.Drawing.Size(35, 13);
+            this.label5.TabIndex = 4;
+            this.label5.Text = "label5";
+            // 
+            // label6
+            // 
+            this.label6.AutoSize = true;
+            this.label6.Location = new System.Drawing.Point(13, 152);
+            this.label6.Name = "label6";
+            this.label6.Size = new System.Drawing.Size(35, 13);
+            this.label6.TabIndex = 5;
+            this.label6.Text = "label6";
+            // 
+            // label7
+            // 
+            this.label7.AutoSize = true;
+            this.label7.Location = new System.Drawing.Point(13, 199);
+            this.label7.Name = "label7";
+            this.label7.Size = new System.Drawing.Size(35, 13);
+            this.label7.TabIndex = 6;
+            this.label7.Text = "label7";
+            // 
+            // textBox1
+            // 
+            this.textBox1.Location = new System.Drawing.Point(96, 14);
+            this.textBox1.Name = "textBox1";
+            this.textBox1.Size = new System.Drawing.Size(138, 20);
+            this.textBox1.TabIndex = 7;
+            // 
+            // textBox2
+            // 
+            this.textBox2.Location = new System.Drawing.Point(96, 41);
+            this.textBox2.Name = "textBox2";
+            this.textBox2.Size = new System.Drawing.Size(138, 20);
+            this.textBox2.TabIndex = 8;
+            // 
+            // textBox3
+            // 
+            this.textBox3.Location = new System.Drawing.Point(96, 68);
+            this.textBox3.Name = "textBox3";
+            this.textBox3.Size = new System.Drawing.Size(138, 20);
+            this.textBox3.TabIndex = 9;
+            // 
+            // textBox4
+            // 
+            this.textBox4.Location = new System.Drawing.Point(96, 95);
+            this.textBox4.Name = "textBox4";
+            this.textBox4.Size = new System.Drawing.Size(138, 20);
+            this.textBox4.TabIndex = 10;
+            // 
+            // textBox5
+            // 
+            this.textBox5.Location = new System.Drawing.Point(96, 122);
+            this.textBox5.Name = "textBox5";
+            this.textBox5.Size = new System.Drawing.Size(138, 20);
+            this.textBox5.TabIndex = 11;
+            // 
+            // textBox6
+            // 
+            this.textBox6.Location = new System.Drawing.Point(96, 149);
+            this.textBox6.Multiline = true;
+            this.textBox6.Name = "textBox6";
+            this.textBox6.Size = new System.Drawing.Size(538, 40);
+            this.textBox6.TabIndex = 12;
+            // 
+            // textBox7
+            // 
+            this.textBox7.Location = new System.Drawing.Point(96, 196);
+            this.textBox7.Multiline = true;
+            this.textBox7.Name = "textBox7";
+            this.textBox7.Size = new System.Drawing.Size(538, 60);
+            this.textBox7.TabIndex = 13;
+            // 
+            // closeButton
+            // 
+            this.closeButton.Location = new System.Drawing.Point(531, 14);
+            this.closeButton.Name = "closeButton";
+            this.closeButton.Size = new System.Drawing.Size(103, 35);
+            this.closeButton.TabIndex = 14;
+            this.closeButton.Text = "Close";
+            this.closeButton.UseVisualStyleBackColor = true;
+            this.closeButton.Click += new System.EventHandler(this.closeButton_Click);
+            // 
+            // confirmReadButton
+            // 
+            this.confirmReadButton.Location = new System.Drawing.Point(531, 55);
+            this.confirmReadButton.Name = "confirmReadButton";
+            this.confirmReadButton.Size = new System.Drawing.Size(103, 35);
+            this.confirmReadButton.TabIndex = 15;
+            this.confirmReadButton.Text = "Confirm read";
+            this.confirmReadButton.UseVisualStyleBackColor = true;
+            this.confirmReadButton.Click += new System.EventHandler(this.confirmReadButton_Click);
+            // 
+            // EventDetailsDlg
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(651, 267);
+            this.Controls.Add(this.confirmReadButton);
+            this.Controls.Add(this.closeButton);
+            this.Controls.Add(this.textBox7);
+            this.Controls.Add(this.textBox6);
+            this.Controls.Add(this.textBox5);
+            this.Controls.Add(this.textBox4);
+            this.Controls.Add(this.textBox3);
+            this.Controls.Add(this.textBox2);
+            this.Controls.Add(this.textBox1);
+            this.Controls.Add(this.label7);
+            this.Controls.Add(this.label6);
+            this.Controls.Add(this.label5);
+            this.Controls.Add(this.label4);
+            this.Controls.Add(this.label3);
+            this.Controls.Add(this.label2);
+            this.Controls.Add(this.label1);
+            this.Name = "EventDetailsDlg";
+            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
+            this.Text = "Event details";
+            this.Load += new System.EventHandler(this.EventDetailsDlg_Load);
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.Label label1;
+        private System.Windows.Forms.Label label2;
+        private System.Windows.Forms.Label label3;
+        private System.Windows.Forms.Label label4;
+        private System.Windows.Forms.Label label5;
+        private System.Windows.Forms.Label label6;
+        private System.Windows.Forms.Label label7;
+        private System.Windows.Forms.TextBox textBox1;
+        private System.Windows.Forms.TextBox textBox2;
+        private System.Windows.Forms.TextBox textBox3;
+        private System.Windows.Forms.TextBox textBox4;
+        private System.Windows.Forms.TextBox textBox5;
+        private System.Windows.Forms.TextBox textBox6;
+        private System.Windows.Forms.TextBox textBox7;
+        private System.Windows.Forms.Button closeButton;
+        private System.Windows.Forms.Button confirmReadButton;
+    }
+}

EventViewer/Forms/EventDetailsDlg.cs

@@ -0,0 +1,67 @@
+///
+/// Copyright (c) 2020 Sensus Slovensko a.s.
+///
+using System;
+using System.Windows.Forms;
+using EventViewer.Resources;
+
+namespace EventViewer.Forms
+{
+    public partial class EventDetailsDlg : Form
+    {
+        Events.Entities.Event evnt;
+
+        public EventDetailsDlg()
+        {
+            InitializeComponent();
+            Localize();
+        }
+
+        public EventDetailsDlg(Events.Entities.Event evnt, bool enableConfirmReadButton)
+            : this()
+        {
+            this.evnt = evnt;
+            confirmReadButton.Visible = confirmReadButton.Enabled = enableConfirmReadButton;
+        }
+
+        void Localize()
+        {
+            Text = Strings.Event_details;
+            label1.Text = Strings.Date_time;
+            label2.Text = Strings.Bench;
+            label3.Text = Strings.Source;
+            label4.Text = Strings.Class;
+            label5.Text = Strings.Severity;
+            label6.Text = Strings.Message;
+            label7.Text = Strings.More_information;
+            closeButton.Text = Strings.Close;
+            confirmReadButton.Text = Strings.Confirm_read;
+        }
+
+        private void EventDetailsDlg_Load(object sender, EventArgs e)
+        {
+            if (evnt != null)
+            {
+                textBox1.Text = evnt.TimeStamp.ToString();
+                textBox2.Text = evnt.Bench;
+                textBox3.Text = evnt.Source;
+                textBox4.Text = evnt.EventClass.ToString();
+                textBox5.Text = evnt.Severity.ToString();
+                textBox6.Text = evnt.Message;
+                textBox7.Text = evnt.MoreInfo;
+            }
+        }
+
+        private void closeButton_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+
+        private void confirmReadButton_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.OK;
+            Close();
+        }
+    }
+}

EventViewer/Forms/EventDetailsDlg.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

EventViewer/Forms/SettingsDlg.Designer.cs

@@ -0,0 +1,223 @@
+namespace EventViewer.Forms
+{
+	partial class SettingsDlg
+	{
+		/// <summary>
+		/// Required designer variable.
+		/// </summary>
+		private System.ComponentModel.IContainer components = null;
+
+		/// <summary>
+		/// Clean up any resources being used.
+		/// </summary>
+		/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+		protected override void Dispose(bool disposing)
+		{
+			if (disposing && (components != null))
+			{
+				components.Dispose();
+			}
+			base.Dispose(disposing);
+		}
+
+		#region Windows Form Designer generated code
+
+		/// <summary>
+		/// Required method for Designer support - do not modify
+		/// the contents of this method with the code editor.
+		/// </summary>
+		private void InitializeComponent()
+		{
+            this.okButton = new System.Windows.Forms.Button();
+            this.cancelButton = new System.Windows.Forms.Button();
+            this.eventsDBConnStringTextBox = new System.Windows.Forms.TextBox();
+            this.eventsDBConnStringLabel = new System.Windows.Forms.Label();
+            this.userNameLabel = new System.Windows.Forms.Label();
+            this.userGroupBox = new System.Windows.Forms.GroupBox();
+            this.userNameTextBox = new System.Windows.Forms.TextBox();
+            this.nonAnonymousAccessCheckBox = new System.Windows.Forms.CheckBox();
+            this.usersDBConnStringLabel = new System.Windows.Forms.Label();
+            this.usersDBConnStringTextBox = new System.Windows.Forms.TextBox();
+            this.languageTextBox = new System.Windows.Forms.TextBox();
+            this.languageLabel = new System.Windows.Forms.Label();
+            this.recentTimeDaysTextBox = new System.Windows.Forms.TextBox();
+            this.recentTimeDaysLabel = new System.Windows.Forms.Label();
+            this.userGroupBox.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // okButton
+            // 
+            this.okButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+            this.okButton.Location = new System.Drawing.Point(686, 172);
+            this.okButton.Name = "okButton";
+            this.okButton.Size = new System.Drawing.Size(85, 38);
+            this.okButton.TabIndex = 0;
+            this.okButton.Text = "OK";
+            this.okButton.UseVisualStyleBackColor = true;
+            this.okButton.Click += new System.EventHandler(this.okButton_Click);
+            // 
+            // cancelButton
+            // 
+            this.cancelButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+            this.cancelButton.DialogResult = System.Windows.Forms.DialogResult.Cancel;
+            this.cancelButton.Location = new System.Drawing.Point(781, 172);
+            this.cancelButton.Name = "cancelButton";
+            this.cancelButton.Size = new System.Drawing.Size(85, 38);
+            this.cancelButton.TabIndex = 1;
+            this.cancelButton.Text = "Cancel";
+            this.cancelButton.UseVisualStyleBackColor = true;
+            this.cancelButton.Click += new System.EventHandler(this.cancelButton_Click);
+            // 
+            // eventsDBConnStringTextBox
+            // 
+            this.eventsDBConnStringTextBox.Location = new System.Drawing.Point(164, 21);
+            this.eventsDBConnStringTextBox.Name = "eventsDBConnStringTextBox";
+            this.eventsDBConnStringTextBox.Size = new System.Drawing.Size(708, 20);
+            this.eventsDBConnStringTextBox.TabIndex = 5;
+            // 
+            // eventsDBConnStringLabel
+            // 
+            this.eventsDBConnStringLabel.AutoSize = true;
+            this.eventsDBConnStringLabel.Location = new System.Drawing.Point(26, 24);
+            this.eventsDBConnStringLabel.Name = "eventsDBConnStringLabel";
+            this.eventsDBConnStringLabel.Size = new System.Drawing.Size(87, 13);
+            this.eventsDBConnStringLabel.TabIndex = 4;
+            this.eventsDBConnStringLabel.Text = "Events database";
+            // 
+            // userNameLabel
+            // 
+            this.userNameLabel.AutoSize = true;
+            this.userNameLabel.Location = new System.Drawing.Point(14, 29);
+            this.userNameLabel.Name = "userNameLabel";
+            this.userNameLabel.Size = new System.Drawing.Size(58, 13);
+            this.userNameLabel.TabIndex = 0;
+            this.userNameLabel.Text = "User name";
+            // 
+            // userGroupBox
+            // 
+            this.userGroupBox.Controls.Add(this.userNameTextBox);
+            this.userGroupBox.Controls.Add(this.nonAnonymousAccessCheckBox);
+            this.userGroupBox.Controls.Add(this.userNameLabel);
+            this.userGroupBox.Location = new System.Drawing.Point(12, 86);
+            this.userGroupBox.Name = "userGroupBox";
+            this.userGroupBox.Size = new System.Drawing.Size(871, 63);
+            this.userGroupBox.TabIndex = 18;
+            this.userGroupBox.TabStop = false;
+            // 
+            // userNameTextBox
+            // 
+            this.userNameTextBox.Location = new System.Drawing.Point(152, 26);
+            this.userNameTextBox.Name = "userNameTextBox";
+            this.userNameTextBox.Size = new System.Drawing.Size(197, 20);
+            this.userNameTextBox.TabIndex = 8;
+            // 
+            // nonAnonymousAccessCheckBox
+            // 
+            this.nonAnonymousAccessCheckBox.AutoSize = true;
+            this.nonAnonymousAccessCheckBox.Location = new System.Drawing.Point(17, 0);
+            this.nonAnonymousAccessCheckBox.Name = "nonAnonymousAccessCheckBox";
+            this.nonAnonymousAccessCheckBox.Size = new System.Drawing.Size(140, 17);
+            this.nonAnonymousAccessCheckBox.TabIndex = 2;
+            this.nonAnonymousAccessCheckBox.Text = "Non anonymous access";
+            this.nonAnonymousAccessCheckBox.UseVisualStyleBackColor = true;
+            this.nonAnonymousAccessCheckBox.CheckedChanged += new System.EventHandler(this.nonAnonymousAccessCheckBox_CheckedChanged);
+            // 
+            // usersDBConnStringLabel
+            // 
+            this.usersDBConnStringLabel.AutoSize = true;
+            this.usersDBConnStringLabel.Location = new System.Drawing.Point(26, 54);
+            this.usersDBConnStringLabel.Name = "usersDBConnStringLabel";
+            this.usersDBConnStringLabel.Size = new System.Drawing.Size(81, 13);
+            this.usersDBConnStringLabel.TabIndex = 6;
+            this.usersDBConnStringLabel.Text = "Users database";
+            // 
+            // usersDBConnStringTextBox
+            // 
+            this.usersDBConnStringTextBox.Location = new System.Drawing.Point(164, 51);
+            this.usersDBConnStringTextBox.Name = "usersDBConnStringTextBox";
+            this.usersDBConnStringTextBox.Size = new System.Drawing.Size(708, 20);
+            this.usersDBConnStringTextBox.TabIndex = 7;
+            // 
+            // languageTextBox
+            // 
+            this.languageTextBox.Location = new System.Drawing.Point(164, 190);
+            this.languageTextBox.Name = "languageTextBox";
+            this.languageTextBox.Size = new System.Drawing.Size(53, 20);
+            this.languageTextBox.TabIndex = 20;
+            // 
+            // languageLabel
+            // 
+            this.languageLabel.AutoSize = true;
+            this.languageLabel.Location = new System.Drawing.Point(26, 193);
+            this.languageLabel.Name = "languageLabel";
+            this.languageLabel.Size = new System.Drawing.Size(55, 13);
+            this.languageLabel.TabIndex = 19;
+            this.languageLabel.Text = "Language";
+            // 
+            // recentTimeDaysTextBox
+            // 
+            this.recentTimeDaysTextBox.Location = new System.Drawing.Point(164, 160);
+            this.recentTimeDaysTextBox.Name = "recentTimeDaysTextBox";
+            this.recentTimeDaysTextBox.Size = new System.Drawing.Size(53, 20);
+            this.recentTimeDaysTextBox.TabIndex = 22;
+            // 
+            // recentTimeDaysLabel
+            // 
+            this.recentTimeDaysLabel.AutoSize = true;
+            this.recentTimeDaysLabel.Location = new System.Drawing.Point(26, 163);
+            this.recentTimeDaysLabel.Name = "recentTimeDaysLabel";
+            this.recentTimeDaysLabel.Size = new System.Drawing.Size(132, 13);
+            this.recentTimeDaysLabel.TabIndex = 21;
+            this.recentTimeDaysLabel.Text = "Recent time period in days";
+            // 
+            // SettingsDlg
+            // 
+            this.AcceptButton = this.okButton;
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.CancelButton = this.cancelButton;
+            this.ClientSize = new System.Drawing.Size(895, 228);
+            this.Controls.Add(this.recentTimeDaysTextBox);
+            this.Controls.Add(this.recentTimeDaysLabel);
+            this.Controls.Add(this.languageTextBox);
+            this.Controls.Add(this.usersDBConnStringLabel);
+            this.Controls.Add(this.languageLabel);
+            this.Controls.Add(this.userGroupBox);
+            this.Controls.Add(this.usersDBConnStringTextBox);
+            this.Controls.Add(this.eventsDBConnStringLabel);
+            this.Controls.Add(this.eventsDBConnStringTextBox);
+            this.Controls.Add(this.cancelButton);
+            this.Controls.Add(this.okButton);
+            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
+            this.MaximizeBox = false;
+            this.MinimizeBox = false;
+            this.Name = "SettingsDlg";
+            this.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Hide;
+            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
+            this.Text = "Settings";
+            this.Load += new System.EventHandler(this.SettingsDlg_Load);
+            this.userGroupBox.ResumeLayout(false);
+            this.userGroupBox.PerformLayout();
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+		}
+
+		#endregion
+
+		private System.Windows.Forms.Button okButton;
+		private System.Windows.Forms.Button cancelButton;
+        private System.Windows.Forms.TextBox eventsDBConnStringTextBox;
+        private System.Windows.Forms.Label eventsDBConnStringLabel;
+        private System.Windows.Forms.Label userNameLabel;
+        private System.Windows.Forms.GroupBox userGroupBox;
+        private System.Windows.Forms.CheckBox nonAnonymousAccessCheckBox;
+        private System.Windows.Forms.Label usersDBConnStringLabel;
+        private System.Windows.Forms.TextBox usersDBConnStringTextBox;
+        private System.Windows.Forms.TextBox userNameTextBox;
+        private System.Windows.Forms.TextBox languageTextBox;
+        private System.Windows.Forms.Label languageLabel;
+        private System.Windows.Forms.TextBox recentTimeDaysTextBox;
+        private System.Windows.Forms.Label recentTimeDaysLabel;
+	}
+}

EventViewer/Forms/SettingsDlg.cs

@@ -0,0 +1,85 @@
+///
+/// Copyright (c) 2020 Sensus Slovensko a.s.
+///
+using System;
+using System.Drawing;
+using System.Windows.Forms;
+using EventViewer.Resources;
+
+namespace EventViewer.Forms
+{
+	public partial class SettingsDlg : Form
+	{
+		public SettingsDlg()
+		{
+			InitializeComponent();
+            Localize();
+            ManageCheckGroupBox(nonAnonymousAccessCheckBox, userGroupBox);
+        }
+
+        void Localize()
+        {
+            Text = Strings.Settings;
+            eventsDBConnStringLabel.Text = Strings.Events_database;
+            usersDBConnStringLabel.Text = Strings.Users_database;
+            nonAnonymousAccessCheckBox.Text = Strings.Non_anonymous_access;
+            userNameLabel.Text = Strings.User_name;
+            recentTimeDaysLabel.Text = Strings.Recent_time_period_in_days;
+            languageLabel.Text = Strings.Language;
+            okButton.Text = Strings.OK;
+            cancelButton.Text = Strings.Cancel;
+        }
+
+		private void SettingsDlg_Load(object sender, EventArgs e)
+		{
+            LocalSettings ls = Program.LocalSettings;
+            eventsDBConnStringTextBox.Text = ls.ConnectionString;
+            usersDBConnStringTextBox.Text = ls.UsersDBConnString;
+            nonAnonymousAccessCheckBox.Checked = ls.NonAnonymousAccess;
+            userNameTextBox.Text = ls.UserName;
+            recentTimeDaysTextBox.Text = ls.RecentTimeDays.ToString();
+            languageTextBox.Text = ls.Language;
+        }
+
+		private void okButton_Click(object sender, EventArgs e)
+		{
+            int days;
+            LocalSettings ls = Program.LocalSettings;
+            ls.ConnectionString = eventsDBConnStringTextBox.Text;
+            ls.UsersDBConnString = usersDBConnStringTextBox.Text;
+            ls.NonAnonymousAccess = nonAnonymousAccessCheckBox.Checked;
+            ls.UserName = userNameTextBox.Text;
+            if (int.TryParse(recentTimeDaysTextBox.Text, out days) && days > 0) ls.RecentTimeDays = days;
+            ls.Language = languageTextBox.Text;
+			ls.Save();
+
+			DialogResult = DialogResult.OK;
+			Close();
+		}
+
+		private void cancelButton_Click(object sender, EventArgs e)
+		{
+			DialogResult = DialogResult.Cancel;
+			Close();
+		}
+
+        private void nonAnonymousAccessCheckBox_CheckedChanged(object sender, EventArgs e)
+        {
+            ManageCheckGroupBox(nonAnonymousAccessCheckBox, userGroupBox);
+        }
+
+        private void ManageCheckGroupBox(CheckBox chk, GroupBox grp)
+        {
+            /// Make sure the CheckBox isn't in the GroupBox. This will only happen the first time.
+            if (chk.Parent == grp)
+            {
+                grp.Parent.Controls.Add(chk);                                       /// Reparent the CheckBox so it's not in the GroupBox.
+                chk.Location = new Point(chk.Left + grp.Left, chk.Top + grp.Top);   /// Adjust the CheckBox's location.
+                chk.BringToFront();                                                 /// Move the CheckBox to the top of the stacking order.
+            }
+
+            /// Enable or disable the GroupBox.
+            grp.Enabled = chk.Checked;
+        }
+    }
+}

EventViewer/Forms/SettingsDlg.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

EventViewer/LocalSettings.cs

@@ -0,0 +1,212 @@
+///
+/// Copyright (c) 2020 Sensus Slovensko a.s.
+///
+using System;
+using System.IO;
+using System.Security.Cryptography;
+using System.Text;
+using System.Xml.Serialization;
+
+namespace EventViewer
+{
+    /// <summary>
+    /// Class to be serialized to an XML file...
+    /// </summary>
+	[XmlRootAttribute("EventViewer")]
+    public class LocalSettings
+    {
+        static XmlSerializer serializer = XmlSerializer.FromTypes(new[] { typeof(LocalSettings) })[0];
+
+        ///
+        /// Configuration file ecryption/decryption key and initialization vector
+        ///
+        static byte[] key = new byte[] { 83, 254, 105, 64, 184, 201, 195, 127, 52, 99, 77, 45, 252, 132, 163, 156 };
+        static byte[] IV = new byte[] { 189, 23, 137, 56, 204, 241, 242, 118, 28, 89, 9, 198, 224, 111, 186, 125 };
+
+        /// Common
+        public string ConnectionString;
+        public bool NonAnonymousAccess;
+        public string UserName;
+        public string UsersDBConnString;
+        public int RecentTimeDays;
+        public string Language;
+
+        /// MainWnd
+        public int WndLeft;
+        public int WndTop;
+        public int WndWidth;
+        public int WndHeight;
+        public bool WndMaximized;
+
+        public int ColWid1;
+        public int ColWid2;
+        public int ColWid3;
+        public int ColWid4;
+        public int ColWid5;
+        public int ColWid6;
+
+        public LocalSettings()
+        {
+        }
+
+        public LocalSettings(bool createNew)
+            : this()
+        {
+            /// Default settings
+
+            /// Common
+#if DEBUG
+            ConnectionString = "SERVER=localhost; DATABASE=test-e; UID=root; PASSWORD=kraken; CHARSET=utf8";
+            UsersDBConnString = "SERVER=localhost; DATABASE=test; UID=root; PASSWORD=kraken; CHARSET=utf8;";
+#else
+            ConnectionString = "SERVER=10.42.128.16; DATABASE=st_wr_shared_events; UID=v9305784; PASSWORD=p89344390; CHARSET=utf8";
+            UsersDBConnString = "SERVER=10.42.128.16; DATABASE=st_wr_shared_config; UID=u9305784; PASSWORD=p89344390; CHARSET=utf8;";
+#endif
+            RecentTimeDays = 7;
+            Language = "sk";
+
+            /// MainWnd
+            WndLeft = 20;
+            WndTop = 20;
+            WndWidth = 1250;
+            WndHeight = 750;
+            WndMaximized = false;
+
+            ColWid1 = 80;
+            ColWid2 = 50;
+            ColWid3 = 100;
+            ColWid4 = 60;
+            ColWid5 = 70;
+            ColWid6 = 500;
+        }
+
+
+        /// <summary>
+        /// Load public fields of this class from the XML file.
+        /// </summary>
+        /// <param name="fileName">Name of the file.</param>
+        /// <returns>
+        /// LocalSettings object or null when Load() fails
+        /// </returns>
+		public static LocalSettings Load(string fileName)
+        {
+            try
+            {
+                bool isEncrypted = true;
+				using (StreamReader reader = new StreamReader(fileName))
+                {
+                    isEncrypted = !reader.ReadLine().StartsWith("<?xml version=");
+                    reader.Close();
+                }
+
+                if (isEncrypted)
+                {
+                    /// Write settings to a string
+                    StringBuilder plain = new StringBuilder();
+
+                    using (RijndaelManaged aes = new RijndaelManaged { Padding = PaddingMode.Zeros })
+                    {
+                        using (FileStream fsCrypt = new FileStream(fileName, FileMode.Open))
+                        {
+                            using (ICryptoTransform decryptor = aes.CreateDecryptor(key, IV))
+                            {
+                                using (CryptoStream cs = new CryptoStream(fsCrypt, decryptor, CryptoStreamMode.Read))
+                                {
+                                    using (MemoryStream mStream = new MemoryStream())
+                                    {
+                                        using (var writer = new BinaryWriter(mStream))
+                                        {
+                                            int data;
+                                            while ((data = cs.ReadByte()) != -1)
+                                            {
+                                                if (data != 0) writer.Write((byte)data);
+                                            }
+                                            writer.Flush();
+                                            mStream.Position = 0;
+
+                                            using (var reader = new StreamReader(mStream))
+                                            {
+                                                LocalSettings ls = serializer.Deserialize(reader) as LocalSettings;
+                                                //log.WarnFormat("Succesfully loaded and decrypted from '{0}'", fileName);
+                                                return ls;
+                                            }
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+                else
+                {
+                    using (StreamReader reader = new StreamReader(fileName))
+                    {
+                        LocalSettings ls = serializer.Deserialize(reader) as LocalSettings;
+                        //log.WarnFormat("Succesfully loaded from '{0}'", fileName);
+                        return ls;
+                    }
+                }
+            }
+            catch (Exception e)
+            {
+                //log.ErrorFormat("Failed to load from '{0}': {1}", fileName, e.Message);
+                return null;
+            }
+        }
+
+        /// <summary>
+        /// Save public fields of this class to the XML file.
+        /// </summary>
+        public void Save()
+        {
+            try
+            {
+#if false
+                /// Write settings to an unencrypted file
+                using (TextWriter writer = new StreamWriter(Program.LocalSettingsFileName))
+                {
+                    serializer.Serialize(writer, this);
+                    log.Warn("LocalSettings succesfully saved");
+                }
+#else
+                /// Encrypt and write to file 'Program.LocalSettingsFileName'
+                using (RijndaelManaged aes = new RijndaelManaged { Padding = PaddingMode.Zeros })
+                {
+                    using (FileStream fsCrypt = new FileStream(Program.LocalSettingsFileName, FileMode.Create))
+                    {
+                        using (ICryptoTransform encryptor = aes.CreateEncryptor(key, IV))
+                        {
+                            using (CryptoStream cs = new CryptoStream(fsCrypt, encryptor, CryptoStreamMode.Write))
+                            {
+                                using (MemoryStream mStream = new MemoryStream())
+                                {
+                                    using (var writer = new StreamWriter(mStream))
+                                    {
+                                        /// Serialize and write settings to a memory stream
+                                        serializer.Serialize(writer, this);
+                                        writer.Flush();
+                                        mStream.Position = 0;
+
+                                        using (var reader = new StreamReader(mStream))
+                                        {
+                                            /// Encrypt and write to file 'Program.LocalSettingsFileName'
+                                            int data;
+                                            while ((data = mStream.ReadByte()) != -1) cs.WriteByte((byte)data);
+
+                                            //log.WarnFormat("Succesfully encrypted and saved to '{0}'", Program.LocalSettingsFileName);
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+#endif
+            }
+            catch (Exception e)
+            {
+                //log.ErrorFormat("Failed to save to '{0}': {1}", Program.LocalSettingsFileName, e.Message);
+            }
+        }
+    }
+}