Animates the text block's width
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Class="Microsoft.Samples.Graphics.RectangleExample" WindowTitle="Example"> <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> </Page>