gistfile1.xml

<Window x:Class="SimpleConductorOneActive.Views.ShellView"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="550" Background="CornflowerBlue">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>
        <StackPanel Orientation="Horizontal" Grid.Row="0">
            <Button Content="New Screen" x:Name="NewScreen" />
            <TextBlock Text="Current Screen Count:" VerticalAlignment="Center" Padding="10,5,2,5"/>
            <TextBlock Text="{Binding Items.Count}" VerticalAlignment="Center" Padding="0,5,5,5"/>
        </StackPanel>
        <ContentControl Grid.Row="1" x:Name="ActiveItem" HorizontalAlignment="Center"  VerticalAlignment="Center"  Height="200" Width="400" Margin="5" Padding="5"/>
        <ListBox x:Name='Items' Grid.Row="2">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <StackPanel Orientation="Vertical" Width="60" Margin="5">
                        <TextBlock Text="Screen Id" FontWeight="Bold"  />
                        <TextBlock Text='{Binding DisplayName}'  
                                   Margin='5 5 5 5'   
                                   Padding="5 5 5 5"
                                   FontSize='12' 
                                   TextWrapping="NoWrap"/>
                    </StackPanel>
                </DataTemplate>
            </ListBox.ItemTemplate>
            <ListBox.ItemsPanel>
                <ItemsPanelTemplate>
                    <StackPanel Orientation='Horizontal' />
                </ItemsPanelTemplate>
            </ListBox.ItemsPanel>
        </ListBox>

    </Grid>
</Window>