Avalonia/samples/XamlTestApplicationPcl/Views/MainWindow.xaml

<Window x:Class="XamlTestApplication.MainWindow"
        xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:XamlTestApplication;assembly=XamlTestApplicationPcl"
        xmlns:vm="clr-namespace:XamlTestApplication.ViewModels;assembly=XamlTestApplicationPcl"
        Title="Avalonia Test Application" Width="800" Height="600">
  <Grid RowDefinitions="Auto,*,Auto" ColumnDefinitions="*,*">
    <Menu Grid.ColumnSpan="2">
      <MenuItem Header="_File">
        <MenuItem Header="_Open" Command="{Binding OpenFileCommand}" />
        <MenuItem Header="_Open Folder" Command="{Binding OpenFolderCommand}" />
        <MenuItem Header="_Hello">
          <MenuItem Header="_Goodbye"/>
          <Separator/>
          <MenuItem Header="_World" />
        </MenuItem>
        <Separator Background="Red"/>
        <MenuItem Header="_Test"/>
        <Separator/>
        <MenuItem Name="exitMenu" Header="_Exit"/>
      </MenuItem>
    </Menu>
    <TabControl Grid.Row="1" Grid.ColumnSpan="2" Padding="5">
      <TabControl.Transition>
        <PageSlide Duration="0.25" />
      </TabControl.Transition>
     
      <TabItem Header="Buttons">
        <ScrollViewer CanScrollHorizontally="False">
          <StackPanel Margin="10" Gap="4">
            <TextBlock Text="Button" FontWeight="Medium" FontSize="20" Foreground="#212121" />
            <TextBlock Text="A button control" FontSize="13" Foreground="#727272" Margin="0,0,0,10" />
            <Button Content="Button" Width="150" />
            <Button Content="Button" Width="150" IsEnabled="False" />
            <TextBlock Text="ToggleButton" Margin="0, 40, 0, 0" FontSize="20" Foreground="#212121" />
            <TextBlock Text="A toggle button control" FontSize="13" Foreground="#727272" Margin="0,0,0,10" />
            <ToggleButton Width="150" IsChecked="True" Content="On" />
            <ToggleButton Width="150" IsChecked="False" Content="Off" />
          </StackPanel>
        </ScrollViewer>
      </TabItem>
      <TabItem Header="Text">
        <StackPanel Margin="10" Gap="4">
          <TextBlock Text="TextBlock with ContextMenu" FontWeight="Medium" FontSize="20" Foreground="#212121">
            <TextBlock.ContextMenu>
              <ContextMenu>
                <MenuItem Header="Testing 1" />
                <MenuItem Header="Testing 2" />
                <MenuItem Header="Testing 3" />
                <MenuItem Header="Testing 4">
                  <MenuItem Header="SubItem 1" />
                  <MenuItem Header="SubItem 2" />
                  <MenuItem Header="SubItem 3" />
                  <MenuItem Header="SubItem 4" />
                </MenuItem>
              </ContextMenu>
            </TextBlock.ContextMenu>          
        </TextBlock>
          <TextBlock Text="A control for displaying text."
                      FontSize="13"
                      Foreground="#727272"
                      Margin="0, 0, 0, 10" />
          <TextBlock Text="Lorem ipsum dolor sit amet, consectetuer adipiscing elit." FontSize="11" />
          <TextBlock Text="Lorem ipsum dolor sit amet, consectetuer adipiscing elit." FontSize="11"
                      FontWeight="Medium" />
          <TextBlock Text="Lorem ipsum dolor sit amet, consectetuer adipiscing elit." FontSize="11"
                      FontWeight="Bold" />
          <TextBlock Text="Lorem ipsum dolor sit amet, consectetuer adipiscing elit." FontSize="11"
                      FontStyle="Italic" />
          <TextBlock Margin="0,40,0,0" Text="HtmlLabel" FontWeight="Medium" FontSize="20"
                      Foreground="#212121" />
          <TextBlock Text="A label capable of displaying HTML content" FontSize="13" Foreground="#727272"
                      Margin="0, 0, 0, 10" />
        </StackPanel>
      </TabItem>
      <TabItem Header="Input">
        <ScrollViewer CanScrollHorizontally="False">
          <StackPanel Margin="10" Gap="4">
            <TextBlock Text="TextBlock" FontWeight="Medium" FontSize="20" Foreground="#212121" />
            <TextBlock Text="A text box control"
                        FontSize="13"
                        Foreground="#727272"
                        Margin="0, 0, 0, 10" />
            <TextBox Text="Lorem ipsum dolor sit amet, consectetur adipiscing elit." Width="200" />
            <TextBox Width="200" Watermark="Watermark" />
            <TextBox Width="200" Watermark="Floating Watermark" UseFloatingWatermark="True" />
            <TextBox AcceptsReturn="True" TextWrapping="Wrap" Width="200" Height="150"
                      Text="Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus magna. Cras in mi at felis aliquet congue. Ut a est eget ligula molestie gravida. Curabitur massa. Donec eleifend, libero at sagittis mollis, tellus est malesuada tellus, at luctus turpis elit sit amet quam. Vivamus pretium ornare est." />
            <TextBox Width="200" Text="Left aligned text" TextAlignment="Left" />
            <TextBox Width="200" Text="Center aligned text" TextAlignment="Center" />
            <TextBox Width="200" Text="Right aligned text" TextAlignment="Right" />
            <TextBlock Margin="0, 40, 0, 0" Text="CheckBox" FontWeight="Medium" FontSize="20"
                        Foreground="#212121" />
            <TextBlock Text="A check box control" FontSize="13" Foreground="#727272" Margin="0, 0, 0, 10" />

            <CheckBox IsChecked="True" Margin="0, 0, 0, 5" Content="Checked" />
            <CheckBox IsChecked="False" Content="Unchecked" />
            <TextBlock Margin="0, 40, 0, 0" Text="RadioButton" FontWeight="Medium" FontSize="20"
                        Foreground="#212121" />
            <TextBlock Text="A radio button control" FontSize="13" Foreground="#727272"
                        Margin="0, 0, 0, 10" />
            <RadioButton IsChecked="True" Content="Option 1" />
            <RadioButton IsChecked="False" Content="Option 2" />
            <RadioButton IsChecked="False" Content="Option 3" />
          </StackPanel>
        </ScrollViewer>
      </TabItem>
      <TabItem Header="Images">

        <StackPanel Margin="10" Gap="4" HorizontalAlignment="Center">

          <TextBlock Text="Carousel" FontWeight="Medium" FontSize="20" Foreground="#212121" />
          <TextBlock Text="An items control that displays its items as pages that fill the controls."
                      FontSize="13"
                      Foreground="#727272" Margin="0, 0, 0, 10" />
          <StackPanel Name="carouselVisual" Orientation="Horizontal">

            <Button VerticalAlignment="Center" Margin="5">
              <Button.Content>
                <Path Fill="Black"
                      Data="M20,11V13H8L13.5,18.5L12.08,19.92L4.16,12L12.08,4.08L13.5,5.5L8,11H20Z" />
              </Button.Content>
            </Button>

            <Carousel Width="400" Height="400">
              <Carousel.Transition>
                <PageSlide Duration="0.25" />
              </Carousel.Transition>
              <Image Source="github_icon.png" Width="400" Height="400" />
              <Image Source="pattern.jpg" Width="400" Height="400" />
            </Carousel>

            <Button VerticalAlignment="Center" Margin="5">
              <Button.Content>
                <Path Fill="Black"
                      Data="M4,11V13H16L10.5,18.5L11.92,19.92L19.84,12L11.92,4.08L10.5,5.5L16,11H4Z" />
              </Button.Content>
            </Button>

          </StackPanel>
        </StackPanel>

      </TabItem>
      <TabItem Header="Lists">
        <StackPanel Orientation="Horizontal" VerticalAlignment="Center" HorizontalAlignment="Center">
          <ListBox Items="{Binding Items}" SelectionMode="Multiple">
            <ListBox.ItemTemplate>
              <DataTemplate DataType="vm:TestItem">
                <StackPanel>
                  <TextBlock Text="{Binding Header}" FontSize="24" />
                  <TextBlock Text="{Binding SubHeader}" />
                </StackPanel>
              </DataTemplate>
            </ListBox.ItemTemplate>
          </ListBox>
          <DropDown VerticalAlignment="Center" SelectedIndex="0">
            <StackPanel>
              <TextBlock Text="Item 1" FontSize="24" />
              <TextBlock Text="Item 1 Value" />
            </StackPanel>
            <StackPanel>
              <TextBlock Text="Item 2" FontSize="24" />
              <TextBlock Text="Item 2 Value" />
            </StackPanel>
          </DropDown>
          <TreeView Items="{Binding Nodes}">
            <TreeView.Styles>
              <Style Selector="TreeViewItem">
                <Setter Property="IsExpanded" Value="{Binding IsExpanded, Mode=TwoWay}"/>
              </Style>
            </TreeView.Styles>
            <TreeView.ItemTemplate>
              <TreeDataTemplate DataType="vm:TestNode" ItemsSource="{Binding Children}">
                <StackPanel>
                  <TextBlock Text="{Binding Header}" FontSize="24" />
                  <TextBlock Text="{Binding SubHeader}" />
                </StackPanel>
              </TreeDataTemplate>
            </TreeView.ItemTemplate>
          </TreeView>
          <StackPanel Orientation="Vertical" Gap="4">
            <Button Command="{Binding CollapseNodesCommand}">Collapse Nodes</Button>
            <Button Command="{Binding ExpandNodesCommand}">Expand Nodes</Button>
          </StackPanel>
        </StackPanel>
      </TabItem>
      <TabItem Header="Layout">
        <ScrollViewer CanScrollHorizontally="False">
          <StackPanel Margin="10" Gap="4">
            <TextBlock Text="Grid" FontWeight="Medium" FontSize="20" Foreground="#212121" />
            <TextBlock Text="Lays out child controls according to a grid."
                        FontSize="13"
                        Foreground="#727272"
                        Margin="0, 0, 0, 10" />
            <Grid ColumnDefinitions="*,*" RowDefinitions="Auto,Auto" Width="300">
              <Rectangle Grid.ColumnSpan="2" Fill="#FF5722" Height="200" Margin="2.5" />
              <Rectangle Grid.Row="1" Fill="#FF5722" Height="100" Margin="2.5" />
              <Rectangle Grid.Row="1" Grid.Column="1" Fill="#FF5722" Height="100" Margin="2.5" />
            </Grid>

            <TextBlock Text="StackPanel" FontWeight="Medium" FontSize="20" Foreground="#212121" />
            <TextBlock Text="A panel which lays out its children horizontally or vertically."
                        FontSize="13"
                        Foreground="#727272"
                        Margin="0, 0, 0, 10" />
            <StackPanel Gap="4" Width="300">
              <Rectangle Fill="#FFC107" Height="50" />
              <Rectangle Fill="#FFC107" Height="50" />
              <Rectangle Fill="#FFC107" Height="50" />
            </StackPanel>

            <TextBlock Text="WrapPanel" FontWeight="Medium" FontSize="20" Foreground="#212121" />
            <TextBlock Text="Wraps children to new lines if no space is left:"
                      FontSize="13"
                      Foreground="#727272"
                      Margin="0, 0, 0, 10" />
            <WrapPanel>
              <Rectangle Fill="#FFC107" Height="50" Width="100" Margin="2.5"  />
              <Rectangle Fill="#FFC107" Height="100" Width="100" Margin="2.5"  />
              <Rectangle Fill="#FFC107" Height="50" Width="100" Margin="2.5"  />
              <Rectangle Fill="#FFC107" Height="50" Width="200" Margin="2.5"  />
              <Rectangle Fill="#FFC107" Height="100" Width="50" Margin="2.5"  />
              <Rectangle Fill="#FFC107" Height="50" Width="100" Margin="2.5"  />
              <Rectangle Fill="#FFC107" Height="50" Width="100" Margin="2.5"  />
            </WrapPanel>

            <TextBlock Text="Canvas" FontWeight="Medium" FontSize="20" Foreground="#212121" />
            <TextBlock Text="A panel which lays out its children by explicit coordinates."
                        FontSize="13"
                        Foreground="#727272"
                        Margin="0, 0, 0, 10" />
            <Canvas Width="300" Height="200" Background="Yellow">
              <Rectangle Fill="Blue" Width="63" Height="41" Canvas.Left="40" Canvas.Top="31" />
              <Rectangle Fill="Green" Width="58" Height="58" Canvas.Left="130" Canvas.Top="79" />
            </Canvas>

            <TextBlock Text="DockPanel" FontWeight="Medium" FontSize="20" Foreground="#212121" />
            <TextBlock
                Text="A panel which lays docks its children on the sides and optionally fills the remaining space with the last child"
                FontSize="13"
                Foreground="#727272"
                Margin="0, 0, 0, 10" />
            <DockPanel Width="300" Height="300">
              <Rectangle Fill="Red" Width="25" DockPanel.Dock="Left" />
              <Rectangle Fill="Green" Height="25" DockPanel.Dock="Top" />
              <Rectangle Fill="Blue" Width="25" DockPanel.Dock="Right" />
              <Rectangle Fill="Yellow" Height="25" DockPanel.Dock="Bottom" />
              <Rectangle Fill="Pink" />
            </DockPanel>

            <TextBlock Text="GridSplitter" FontWeight="Medium" FontSize="20" Foreground="#212121" />
            <Grid Height="500" Width="500" ColumnDefinitions="*,Auto,*,Auto,*" RowDefinitions="*,Auto,*">
              <Border Grid.Column="0" Grid.Row="0" Background="Red" />
              <GridSplitter Grid.Column="0" Grid.Row="1" Orientation="Horizontal" />
              <Border Grid.Column="0" Grid.Row="2" Background="Yellow" />
              <GridSplitter Grid.Column="1" Grid.RowSpan="3" Orientation="Vertical" />
              <Border Grid.Column="2" Grid.RowSpan="3" Background="Green" />
              <GridSplitter Grid.Column="3" Grid.RowSpan="3" Orientation="Vertical"/>
              <Border Grid.Column="4" Grid.Row="0" Background="Blue" />
              <GridSplitter Grid.Column="4" Grid.Row="1" Orientation="Horizontal" />
              <Border Grid.Column="4" Grid.Row="3" Background="Pink" />
            </Grid>
          </StackPanel>
        </ScrollViewer>
      </TabItem>
      <TabItem Header="Animations">
        <Grid>
          <Grid.ColumnDefinitions>
            <ColumnDefinition />
            <ColumnDefinition />
          </Grid.ColumnDefinitions>
          <Grid.RowDefinitions>
            <RowDefinition />
            <RowDefinition Height="Auto" />
          </Grid.RowDefinitions>
          <Border Width="100" Height="100">
            <Border.Background>
              <LinearGradientBrush StartPoint="0%,0%" EndPoint="100%,100%">
                <GradientStop Color="Red" Offset="0" />
                <GradientStop Color="Green" Offset="1" />
              </LinearGradientBrush>
            </Border.Background>
            <TextBox HorizontalAlignment="Center" VerticalAlignment="Center" Text="hello!"></TextBox>
          </Border>
          <Border Grid.Row="0" Grid.Column="1" Background="Coral" HorizontalAlignment="Center"
                  VerticalAlignment="Center">
            <Image Width="100" Height="100" Source="github_icon.png">
            </Image>
          </Border>
          <Button Grid.Row="1" Grid.Column="1" Content="Animate" HorizontalAlignment="Center"></Button>
        </Grid>
      </TabItem>
      <TabItem Header="Brushes">
        <Grid ColumnDefinitions="Auto" RowDefinitions="Auto">
          <Border Grid.Row="0" Grid.Column="0" Width="200" Height="200" Margin="10">
            <Border.Background>
              <VisualBrush TileMode="Tile" Stretch="None" AlignmentX="Left" AlignmentY="Top" SourceRect="0%,0%,100%,100%" DestinationRect="0,0,20,20">
                <VisualBrush.Visual>
                  <StackPanel Orientation="Horizontal">
                    <StackPanel Orientation="Vertical">
                      <Rectangle Width="10" Height="10" Fill="DarkGray"/>
                      <Rectangle Width="10" Height="10" Fill="LightGray"/>
                    </StackPanel>
                    <StackPanel Orientation="Vertical">
                      <Rectangle Width="10" Height="10" Fill="LightGray"/>
                      <Rectangle Width="10" Height="10" Fill="DarkGray"/>
                    </StackPanel>
                  </StackPanel>
                </VisualBrush.Visual>
              </VisualBrush>
            </Border.Background>
          </Border>
        </Grid>
      </TabItem>
      <TabItem Header="IScrollable">
        <ScrollViewer>
          <local:TestScrollable/>
        </ScrollViewer>
      </TabItem>
      <TabItem Header="Mem Leak Repro">
        <Grid DataContext="{Binding Shell}">
            <StackPanel>
              
            <TabStrip Name="strip"  Items="{Binding Documents}" SelectedItem="{Binding SelectedDocument, Mode=TwoWay}" Focusable="false">
              <TabStrip.Styles>                

                <Style Selector="TabStripItem">
                  <Setter Property="Height" Value="20" />
                  <Setter Property="Background" Value="#2D2D30" />
                  <Setter Property="BorderBrush" Value="#3E3E42" />
                  <Setter Property="BorderThickness" Value="0" />
                  <Setter Property="Margin" Value="0 0 0 -1" />
                  <Setter Property="Padding" Value="4 0 4 0" />
                  <Setter Property="FontSize" Value="12"/>
                </Style>
                <Style Selector="TabStripItem:pointerover">
                  <Setter Property="Background" Value="#1c97ea" />
                </Style>
                <Style Selector="TabStripItem:selected">
                  <Setter Property="Background" Value="#007ACC" />
                </Style>
              </TabStrip.Styles>

              <TabStrip.DataTemplates>
                <DataTemplate>
                  <StackPanel Orientation="Horizontal" Gap="2">                    
                    <TextBlock Text="{Binding Title}" Foreground="WhiteSmoke" Margin="2"/>                    
                    <Button Height="14" Width="14">
                      <Button.Styles>
                        <Style Selector="Button">
                          <Setter Property="BorderThickness" Value="0"/>
                          <Setter Property="Padding" Value="0"/>
                          <Setter Property="Margin" Value="0"/>
                          <Setter Property="Background" Value="Transparent" />
                        </Style>

                        <Style Selector="Button:pointerover">
                          <Setter Property="Background" Value="#1c97ea" />
                        </Style>
                      </Button.Styles>
                      <Path Margin="2" Stretch="Uniform" UseLayoutRounding="False" Data="M16,12V4H17V2H7V4H8V12L6,14V16H11.2V22H12.8V16H18V14L16,12Z" Fill="WhiteSmoke" />

                    </Button>

                    <Button Height="14" Width="14" Command="{Binding CloseCommand}">
                      <Button.Styles>
                        <Style Selector="Button">
                          <Setter Property="BorderThickness" Value="0"/>
                          <Setter Property="Padding" Value="0"/>
                          <Setter Property="Margin" Value="0"/>
                          <Setter Property="Background" Value="Transparent" />
                        </Style>
                        <Style Selector="Button:pointerover">
                          <Setter Property="Background" Value="#1c97ea" />
                        </Style>
                      </Button.Styles>
                      <Path Margin="2" Stretch="Uniform" UseLayoutRounding="False" Data="M19,6.41L17.59,5L12,10.59L6.41,5L5,6.41L10.59,12L5,17.59L6.41,19L12,13.41L17.59,19L19,17.59L13.41,12L19,6.41Z" Fill="WhiteSmoke" />
                    </Button>
                  </StackPanel>                  
                </DataTemplate>
              </TabStrip.DataTemplates>
            </TabStrip>
            <Grid Background="#007ACC" Height="2" />
              <Button Content="AddTab" Command="{Binding AddDocumentCommand}" Width="50" Height="30" />
              <Button Content="GC.Collecy" Command="{Binding GCCommand}" Width="50" Height="30" />
              <TextBox Text="{Binding InstanceCount}"           />

          <Carousel Items="{Binding Documents}" SelectedIndex="{Binding #strip.SelectedIndex}" IsVirtualized="false">
            <Carousel.DataTemplates>
              <DataTemplate>
                <TextBox Text="{Binding Text}" />
              </DataTemplate>
            </Carousel.DataTemplates>
          </Carousel>
            </StackPanel>
        </Grid>
      </TabItem>
    </TabControl>
  </Grid>
</Window>