laatzen/Common/OmniPlus/OMNIPruefung/ViewModels/Content/SettingsContentVM.cs

namespace OMNIPruefung.ViewModels.Content
{
    using OMNIPruefung.Models;
    using OMNIPruefung.ViewModels.Base;
    using OMNIPruefung.ViewModels.Options;

    using System.Collections.ObjectModel;
    using System.Linq;

    public class SettingsContentVM : ContentVM
    {
        private readonly Appsettings appsettings;

        public SettingsContentVM()
        {
            this.Header = "Einstellungen";
            this.Option = new SettingsOptionVM(this);
            this.Option.OptionSelected += this.NotifyOptionSelected;
            this.appsettings = new Appsettings();

            var settings = this.appsettings
                .AllKeys
                .Select(x => new SettingVM(x, this.appsettings));
            this.Settings = new ObservableCollection<SettingVM>(settings);
        }

        public ObservableCollection<SettingVM> Settings { get; }
    }

    public class SettingVM : VM<SettingVM>
    {
        private readonly string key;
        private readonly Appsettings appsettings;

        public SettingVM(string key, Appsettings appsettings)
        {
            this.key = key;
            this.appsettings = appsettings;
        }
        
        public string Key => this.key;

        private string value;

        public string Value
        {
            get => this.appsettings[this.key];
            set
            {
                this.appsettings[this.key] = value;

                this.NotifyPropertyChanged(nameof(this.Value));
            }
        }
    }
}