<UserControl x:Class="HelloWorld.Page"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    Width="400" Height="300">
    <Grid x:Name="LayoutRoot" Background="AliceBlue">
        <Button x:Name="cmdHello" 
                Content="Hello" 
                Width="100" 
                Height="60" 
                Click="cmdHello_Click" />
    </Grid>
</UserControl>
