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

      HorizontalAlignment="Center" VerticalAlignment="Center">

<!-- Example 5-6. Grouping radio buttons by parent -->

<StackPanel>
  <RadioButton>To be</RadioButton>
  <RadioButton>Not to be</RadioButton>
</StackPanel>

<!-- End of Example 5-6. -->

</Page>