<Window x:Class="Window"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation”
xmlns:x=”http://schemas.microsoft.com/winfx/2006/xaml”
xmlns:local="clr-namespace:DataTemplateSample"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<local:MainViewModel x:Key="MainViewModel"/>
</Window.Resources>
<Grid DataContext="{StaticResource ResourceKey=MainViewModel}">
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<ContentControl Content="{Binding Sample1ViewModel}"/>
<ContentControl Grid.Row="1" Content="{Binding Sample2ViewModel}"/>
</Grid>
</Window>