Animates the text block's width
<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'> <Canvas> <TextBlock Name="MyWipedText" Margin="20" Width="480" Height="100" FontSize="48" FontWeight="Bold" Foreground="Maroon"> This is wiped text <TextBlock.Triggers> <EventTrigger RoutedEvent="TextBlock.Loaded"> <BeginStoryboard> <Storyboard> <DoubleAnimation Storyboard.TargetName="MyWipedText" Storyboard.TargetProperty="(TextBlock.Width)" To="0.0" Duration="0:0:10" AutoReverse="True" RepeatBehavior="Forever" /> </Storyboard> </BeginStoryboard> </EventTrigger> </TextBlock.Triggers> </TextBlock> </Canvas> </UserControl>