/V4/Quickstarts/Hello World/HelloWorld.Silverlight/HelloWorld.Silverlight/Shell.xaml

1<UserControl x:Class="HelloWorld.Shell"
2    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
3    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
4             xmlns:Regions="http://www.codeplex.com/prism"
5             Width="400" Height="300">
6    <ItemsControl Name="MainRegion" Regions:RegionManager.RegionName="MainRegion"/>
7</UserControl>