<Window x:Class="StoryboardAnimation" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Storyboard Animation" Height="300" Width="300"> <Canvas> <Rectangle x:Name="rect1" Width="100" Height="50" Fill="Blue"> <Rectangle.Triggers> <EventTrigger RoutedEvent="Rectangle.Loaded"> <EventTrigger.Actions> <BeginStoryboard> <Storyboard> <DoubleAnimation Storyboard.TargetName="rect1" Storyboard.TargetProperty="(Canvas.Left)" From="0" To="200" Duration="0:0:5" RepeatBehavior="Forever" AutoReverse="True" /> </Storyboard> </BeginStoryboard> </EventTrigger.Actions> </EventTrigger> </Rectangle.Triggers> </Rectangle> </Canvas> </Window>