<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      HorizontalAlignment="Stretch" VerticalAlignment="Stretch">

<!-- Example 13-12. Auto-sizing line -->

<Line Stroke="Black" X1="0" X2="1" Stretch="Fill" />

<!-- End of Example 13-12. -->

</Page>
