Defining a Storyboard as a resource
<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"> <Canvas x:Name="myCanvas"> <Canvas.Resources> <Storyboard x:Name="myStoryboard"> <DoubleAnimation Duration="00:00:11" Storyboard.TargetName="myImage" Storyboard.TargetProperty="Opacity" From="1" To="0" /> </Storyboard> </Canvas.Resources> <Image x:Name="myImage" Source="http://server.com/man.png" /> </Canvas> </Grid> </UserControl> //File: Page.xaml.cs using System; using System.Collections.Generic; using System.Linq; using System.Net; 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(); myStoryboard.Begin(); } } }