<DockPanel xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
	<Button Content="Top" VerticalAlignment="Top"  />
	<Button Content="Bottom" VerticalAlignment="Bottom" />
	<Button Content="Center" VerticalAlignment="Center" />
	<Button Content="Stretch" VerticalAlignment="Stretch" />
</DockPanel>
