Show in full screen
<UserControl x:Class='SilverlightApplication3.MainPage' xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' xmlns:d='http://schemas.microsoft.com/expression/blend/2008' xmlns:mc='http://schemas.openxmlformats.org/markup-compatibility/2006' mc:Ignorable='d' d:DesignWidth='640' d:DesignHeight='480'> <Grid x:Name="LayoutRoot" Background="White" KeyDown="LayoutRoot_KeyDown"> <Grid.RowDefinitions> <RowDefinition></RowDefinition> <RowDefinition></RowDefinition> <RowDefinition></RowDefinition> </Grid.RowDefinitions> <Button Click="Button_Click" Content="Full Screen"></Button> <TextBox Grid.Row="1" Margin="5" Text="You can't type here in full screen mode"></TextBox> <TextBlock x:Name="lbl" Grid.Row="2" Margin="5"></TextBlock> </Grid> </UserControl> //File: Page.xaml.cs using System; using System.Collections.Generic; using System.Linq; using System.Windows; using System.Windows.Controls; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Shapes; namespace SilverlightApplication3 { public partial class MainPage : UserControl { public MainPage() { InitializeComponent(); } private void Button_Click(object sender, RoutedEventArgs e) { Application.Current.Host.Content.IsFullScreen = true; } private void LayoutRoot_KeyDown(object sender, KeyEventArgs e) { lbl.Text = "Pressed " + e.Key + " at " + DateTime.Now.ToLongTimeString(); } } }