sourcegit/src/Views/RevisionFileTreeView.axaml

<UserControl xmlns="https://github.com/avaloniaui"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             xmlns:c="using:SourceGit.Converters"
             xmlns:v="using:SourceGit.Views"
             xmlns:vm="using:SourceGit.ViewModels"
             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
             x:Class="SourceGit.Views.RevisionFileTreeView"
             x:Name="ThisControl">
  <ListBox ItemsSource="{Binding #ThisControl.Rows}"
           Background="Transparent"
           SelectionMode="Single"
           SelectionChanged="OnRowsSelectionChanged"
           ScrollViewer.HorizontalScrollBarVisibility="Auto"
           ScrollViewer.VerticalScrollBarVisibility="Auto">
    <ListBox.ItemsPanel>
      <ItemsPanelTemplate>
        <VirtualizingStackPanel Orientation="Vertical"/>
      </ItemsPanelTemplate>
    </ListBox.ItemsPanel>

    <ListBox.Styles>
      <Style Selector="ListBoxItem">
        <Setter Property="Height" Value="24"/>
        <Setter Property="Margin" Value="0"/>
        <Setter Property="Padding" Value="0"/>
      </Style>
    </ListBox.Styles>

    <ListBox.ItemTemplate>
      <DataTemplate DataType="vm:RevisionFileTreeNode">
        <Grid ColumnDefinitions="16,Auto,Auto,*"
              Margin="{Binding Depth, Converter={x:Static c:IntConverters.ToTreeMargin}}"
              Background="Transparent"
              DoubleTapped="OnTreeNodeDoubleTapped"
              ContextRequested="OnTreeNodeContextRequested">
          <v:RevisionFileTreeNodeToggleButton Grid.Column="0"
                                              Classes="tree_expander"
                                              Focusable="False"
                                              HorizontalAlignment="Center"
                                              IsChecked="{Binding IsExpanded, Mode=OneWay}"
                                              IsVisible="{Binding IsFolder}"/>
          <v:RevisionTreeNodeIcon Grid.Column="1" Width="14" Height="14" Node="{Binding}" IsExpanded="{Binding IsExpanded, Mode=OneWay}"/>
          <TextBlock Grid.Column="2" Classes="monospace" Text="{Binding Name}" Margin="6,0,0,0"/>
        </Grid>
      </DataTemplate>
    </ListBox.ItemTemplate>
  </ListBox>
</UserControl>