FillBehavior Enumeration
Assembly: PresentationCore (in presentationcore.dll)
XML Namespace: http://schemas.microsoft.com/winfx/2006/xaml/presentation
This example shows how to specify the FillBehavior for the inactive Timeline of an animated property.
The FillBehavior property of a Timeline determines what happens to the value of an animated property when it is not being animated, that is, when the Timeline is inactive but its parent Timeline is inside its active or hold period. For example, does an animated property remain at its end value after the animation ends or does it revert back to the value it had before the animation started?
The following example uses a DoubleAnimation to animate the Width of two rectangles. Each rectangle uses a different Timeline object.
One Timeline has a FillBehavior that is set to Stop, which causes the width of the rectangle to revert back to its non-animated value when the Timeline ends. The other Timeline has a FillBehavior of HoldEnd, which causes the width to remain at its end value when the Timeline ends.
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" > <StackPanel Margin="20"> <Border Background="#99FFFFFF"> <TextBlock Margin="20"> This example shows how the FillBehavior property determines how an animation behaves after it reaches the end of its duration. </TextBlock> </Border> <TextBlock>FillBehavior="Deactivate"</TextBlock> <Rectangle Name="deactiveAnimationRectangle" Width="20" Height="20" Fill="#AA3333FF" HorizontalAlignment="Left" > <Rectangle.Triggers> <EventTrigger RoutedEvent="Rectangle.Loaded"> <BeginStoryboard> <Storyboard> <!-- The animated rectangle's width reverts back to its non-animated value after the animation ends. --> <DoubleAnimation Storyboard.TargetName="deactiveAnimationRectangle" Storyboard.TargetProperty="Width" From="100" To="400" Duration="0:0:2" FillBehavior="Stop" /> </Storyboard> </BeginStoryboard> </EventTrigger> </Rectangle.Triggers> </Rectangle> <TextBlock Margin="0,20,0,0">FillBehavior="HoldEnd" </TextBlock> <Rectangle Name="holdEndAnimationRectangle" Width="20" Height="20" Fill="#AA3333FF" HorizontalAlignment="Left" > <Rectangle.Triggers> <EventTrigger RoutedEvent="Rectangle.Loaded"> <BeginStoryboard> <Storyboard> <!-- The animated rectangle's width remains at its end value after the animation ends. --> <DoubleAnimation Storyboard.TargetName="holdEndAnimationRectangle" Storyboard.TargetProperty="Width" From="100" To="400" Duration="0:0:2" FillBehavior="HoldEnd" /> </Storyboard> </BeginStoryboard> </EventTrigger> </Rectangle.Triggers> </Rectangle> </StackPanel> </Page>
For the complete sample, see Animation Example Gallery.
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.