TextDiffView.xaml

<UserControl x:Class="GitSharp.Demo.TextDiffView"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:Demo="clr-namespace:GitSharp.Demo"
    MinHeight="50" MinWidth="200" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">

    <UserControl.Resources>
        <Demo:BlockTextConverterA x:Key="BlockTextConverterA"/>
        <Demo:BlockTextConverterB x:Key="BlockTextConverterB"/>
        <Demo:BlockColorConverterA x:Key="BlockColorConverterA"/>
        <Demo:BlockColorConverterB x:Key="BlockColorConverterB"/>
    </UserControl.Resources>
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition/>
            <ColumnDefinition Width="4" />
            <ColumnDefinition/>
        </Grid.ColumnDefinitions>
        <ScrollViewer  Grid.Column="0" HorizontalScrollBarVisibility="Visible" VerticalScrollBarVisibility="Hidden" ScrollChanged="OnScrollChanged" Name="m_scrollview_A">
            <ListBox Name="ListA">
                <ListBox.ItemTemplate>
                    <DataTemplate>
                        <Grid Loaded="StretchDataTemplate" Margin="-1">
                            <Border BorderBrush="DarkGray" BorderThickness="0,1,0,1" HorizontalAlignment="Stretch" Background="{Binding Converter={StaticResource BlockColorConverterA}}" ToolTip="{Binding EditWithRespectToA}">
                                <TextBlock Text="{Binding Converter={StaticResource BlockTextConverterA}}"/>
                            </Border>
                        </Grid>
                    </DataTemplate>
                </ListBox.ItemTemplate>
            </ListBox>
        </ScrollViewer>
        <GridSplitter Grid.Column="1" ResizeBehavior="PreviousAndNext" HorizontalAlignment="Stretch"/>
        <ScrollViewer Grid.Column="2" HorizontalScrollBarVisibility="Visible"  Name="m_scrollview_B"  ScrollChanged="OnScrollChanged">
            <ListBox  Name="ListB" >
                <ListBox.ItemTemplate>
                    <DataTemplate>
                        <Grid Loaded="StretchDataTemplate" Margin="-1">
                            <Border BorderBrush="DarkGray" BorderThickness="0,1,0,1"  HorizontalAlignment="Stretch" Background="{Binding Converter={StaticResource BlockColorConverterB}}" ToolTip="{Binding EditWithRespectToA}">
                                <TextBlock Text="{Binding Converter={StaticResource BlockTextConverterB}}"/>
                            </Border>
                        </Grid>
                    </DataTemplate>
                </ListBox.ItemTemplate>
            </ListBox>
        </ScrollViewer>
    </Grid>
    <!--<ListBox Name="m_list" Grid.IsSharedSizeScope="True">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <Border BorderBrush="DarkGray" BorderThickness="1,0,1,1">
                        <Grid>
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition SharedSizeGroup="A"/>
                                <ColumnDefinition SharedSizeGroup="B"/>
                            </Grid.ColumnDefinitions>
                            <TextBlock Text="{Binding TextA}" Grid.Column="0"/>
                            <TextBlock Text="{Binding TextB}" Grid.Column="1"/>
                        </Grid>
                    </Border>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>-->
</UserControl>