Add more samples

src/XamlToy/Samples/Border.txt

@@ -1,4 +1,5 @@
-<StackPanel xmlns="https://github.com/avaloniaui" Orientation="Vertical" Spacing="4">
+<StackPanel xmlns="https://github.com/avaloniaui" 
+            Orientation="Vertical" Spacing="4">
   <TextBlock Classes="h2">A control which decorates a child with a border and background</TextBlock>
 
   <StackPanel Orientation="Vertical"

src/XamlToy/Samples/Button.txt

@@ -0,0 +1,43 @@
+<StackPanel xmlns="https://github.com/avaloniaui" 
+            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+            Orientation="Vertical" Spacing="4">
+  <TextBlock Classes="h2">A button control</TextBlock>
+
+  <StackPanel Orientation="Horizontal"
+              Margin="0,16,0,0"
+              HorizontalAlignment="Center"
+              Spacing="16">
+    <StackPanel Orientation="Vertical" Spacing="8" Width="200">
+      <Button>Standard _XAML Button</Button>
+      <Button Foreground="White">Foreground</Button>
+      <Button Background="{DynamicResource SystemAccentColor}">Background</Button>
+      <Button IsEnabled="False">Disabled</Button>
+      <Button Content="Re-themed">
+        <Button.Styles>
+          <Style>
+            <Style.Resources>
+              <SolidColorBrush x:Key="ThemeBorderMidBrush">Red</SolidColorBrush>
+              <SolidColorBrush x:Key="ThemeControlHighBrush">DarkRed</SolidColorBrush>
+              <SolidColorBrush x:Key="ButtonBorderBrush">Red</SolidColorBrush>
+              <SolidColorBrush x:Key="ButtonBackground">DarkRed</SolidColorBrush>
+              <SolidColorBrush x:Key="ButtonBackgroundPointerOver">Red</SolidColorBrush>
+              <SolidColorBrush x:Key="ButtonBackgroundPressed">OrangeRed</SolidColorBrush>
+            </Style.Resources>
+          </Style>
+        </Button.Styles>          
+      </Button>
+      <RepeatButton Name="RepeatButton">
+        <TextBlock Name="RepeatButtonTextBlock" Text="Repeat Button: 0" />
+      </RepeatButton>
+      <ToggleButton Content="Toggle Button"/>
+  </StackPanel>
+
+    <StackPanel Orientation="Vertical" Spacing="8" Width="150">
+      <Button BorderThickness="0">No Border</Button>
+      <Button BorderBrush="{DynamicResource SystemAccentColor}">Border Color</Button>
+      <Button BorderBrush="{DynamicResource SystemAccentColor}" BorderThickness="4">Thick Border</Button>
+      <Button BorderBrush="{DynamicResource SystemAccentColor}" BorderThickness="4" IsEnabled="False">Disabled</Button>
+      <Button BorderBrush="{DynamicResource SystemAccentColor}" KeyboardNavigation.IsTabStop="False">IsTabStop=False</Button>
+    </StackPanel>
+  </StackPanel>    
+</StackPanel>

src/XamlToy/ViewModels/MainViewModel.cs

@@ -1,5 +1,7 @@
 using System;
+using System.Collections.ObjectModel;
 using System.IO;
+using System.Linq;
 using System.Windows.Input;
 using Avalonia.Controls;
 using ReactiveUI;
@@ -9,14 +11,55 @@ namespace XamlToy.ViewModels
 {
     public class MainViewModel : ViewModelBase
     {
+        private ObservableCollection<SampleViewModel> _samples;
+        private SampleViewModel? _selectedSample;
         private string? _xaml;
         private IControl? _control;
 
         public MainViewModel()
         {
-            RunCommand = ReactiveCommand.Create(Run);
+            _samples = new ObservableCollection<SampleViewModel>();
 
-            _xaml = LoadResourceString("XamlToy.Samples.BorderPage.txt");
+            var assembly = typeof(MainViewModel).Assembly;
+            var resourceNames = assembly.GetManifestResourceNames();
+
+            foreach (var resourceName in resourceNames)
+            {
+               var xaml = LoadResourceString(resourceName);
+               if (xaml is { } && resourceName.EndsWith(".txt", StringComparison.OrdinalIgnoreCase))
+               {
+                   var name = GetName(resourceName);
+                   if (name is { })
+                   {
+                       _samples.Add(new SampleViewModel(name, xaml));
+                   }
+               }
+            }
+
+            _selectedSample = _samples.FirstOrDefault();
+            _xaml = _selectedSample?.Xaml;
+
+            this.WhenAnyValue(x => x.SelectedSample)
+                .WhereNotNull()
+                .Subscribe(x =>
+                {
+                    Xaml = x.Xaml;
+                    Control = null;
+                });
+
+            RunCommand = ReactiveCommand.Create(Run);
+        }
+
+        public ObservableCollection<SampleViewModel> Samples
+        {
+            get => _samples;
+            set => this.RaiseAndSetIfChanged(ref _samples, value);
+        }
+
+        public SampleViewModel? SelectedSample
+        {
+            get => _selectedSample;
+            set => this.RaiseAndSetIfChanged(ref _selectedSample, value);
         }
 
         public string? Xaml
@@ -33,6 +76,17 @@ namespace XamlToy.ViewModels
 
         public ICommand RunCommand { get; }
 
+        private string? GetName(string resourceName)
+        {
+            var parts = resourceName.Split(new char[] { '.' }, StringSplitOptions.RemoveEmptyEntries);
+            if (parts.Length >= 2)
+            {
+                return $"{parts[parts.Length - 2]}";
+            }
+
+            return null;
+        }
+
         private string? LoadResourceString(string name)
         {
             var assembly = typeof(MainViewModel).Assembly;

src/XamlToy/ViewModels/SampleViewModel.cs

@@ -0,0 +1,27 @@
+using ReactiveUI;
+
+namespace XamlToy.ViewModels;
+
+public class SampleViewModel : ViewModelBase
+{
+    private string _name;
+    private string _xaml;
+
+    public string Name
+    {
+        get => _name;
+        set => this.RaiseAndSetIfChanged(ref _name, value);
+    }
+
+    public string Xaml
+    {
+        get => _xaml;
+        set => this.RaiseAndSetIfChanged(ref _xaml, value);
+    }
+
+    public SampleViewModel(string name, string xaml)
+    {
+        _name = name;
+        _xaml = xaml;
+    }
+}

src/XamlToy/Views/MainView.axaml

@@ -12,8 +12,21 @@
   <Design.DataContext>
     <vm:MainViewModel />
   </Design.DataContext>
-  <Grid ColumnDefinitions="50*,Auto,50*">
-    <ae:TextEditor Grid.Column="0" 
+  <Grid ColumnDefinitions="50*,Auto,50*" RowDefinitions="Auto,*">
+    <ComboBox Grid.Column="2"
+              Grid.Row="0" 
+              Margin="6"
+              HorizontalAlignment="Right"
+              Items="{Binding Samples}"
+              SelectedItem="{Binding SelectedSample}">
+      <ComboBox.ItemTemplate>
+        <DataTemplate DataType="vm:SampleViewModel">
+          <Label Content="{Binding Name}" />
+        </DataTemplate>
+      </ComboBox.ItemTemplate>
+    </ComboBox>
+    <ae:TextEditor Grid.Column="0"
+                   Grid.Row="1"
                    Margin="0"
                    Background="WhiteSmoke"
                    SyntaxHighlighting="XML"
@@ -29,6 +42,7 @@
       </i:Interaction.Behaviors>
     </ae:TextEditor>
     <Button Grid.Column="0" 
+            Grid.Row="1"
             Background="#2fa6e2"
             Foreground="White"
             Content="Run" 
@@ -37,11 +51,13 @@
             Margin="0,10,10,0"
             Command="{Binding RunCommand}" />
     <GridSplitter Grid.Column="1"
+                  Grid.Row="1"
                   Width="6"
                   ResizeBehavior="PreviousAndNext"
                   ResizeDirection="Columns"
                   Background="Transparent"/>
     <ContentControl Grid.Column="2" 
+                    Grid.Row="1"
                     Content="{Binding Control}" />
   </Grid>
 </UserControl>