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DoubleAnimationBase Class
Visual Studio 2008
Abstract class that, when implemented, animates a Double value.
Assembly: PresentationCore (in PresentationCore.dll)
Notes to Inheritors:
See the Custom Animations Overview for information about extending animation classes.
The following code example demonstrates how to use the derived DoubleAnimationUsingKeyFrames class using Extensible Application Markup Language (XAML).
<!-- This example shows how to use the DoubleAnimationUsingKeyFrames to create an animation on the Canvas.Left attached property of a rectangle. --> <Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Name="myRootElement" WindowTitle="KeyFrame Animations"> <!-- Key frame animations enable you to create complex animations by specifying multiple destination values and controlling the animation's interpolation method. --> <Canvas> <!-- The position of this rectangle is animated using a key frame animation. --> <Rectangle Name="myRectangle" Canvas.Top="100" Canvas.Left="10" Height="100" Width="100" Stroke="Black" StrokeThickness="5"> <Rectangle.Triggers> <EventTrigger RoutedEvent="Rectangle.Loaded"> <BeginStoryboard> <Storyboard RepeatBehavior="Forever"> <!-- Animate Canvas.Left attached property using 3 KeyFrames which animates the rectangle along a path. This animation repeats indefinitely. --> <DoubleAnimationUsingKeyFrames Storyboard.TargetName="myRectangle" Storyboard.TargetProperty="(Canvas.Left)"> <DoubleAnimationUsingKeyFrames.KeyFrames> <!-- Using a LinearDoubleKeyFrame, the rectangle moves steadily from its starting position to 500 over the first 3 seconds. --> <LinearDoubleKeyFrame Value="500" KeyTime="0:0:3" /> <!-- Using a DiscreteDoubleKeyFrame, the rectangle suddenly appears at 500 after the fourth second of the animation. --> <DiscreteDoubleKeyFrame Value="400" KeyTime="0:0:4" /> <!-- Using a SplineDoubleKeyFrame, the rectangle moves back to its starting point. The animation starts out slowly at first and then speeds up. This KeyFrame ends after the 6th second. --> <SplineDoubleKeyFrame KeySpline="0.6,0.0 0.9,0.00" Value="10" KeyTime="0:0:6" /> </DoubleAnimationUsingKeyFrames.KeyFrames> </DoubleAnimationUsingKeyFrames> </Storyboard> </BeginStoryboard> </EventTrigger> </Rectangle.Triggers> </Rectangle> </Canvas> </Page>
System.Object
System.Windows.Threading.DispatcherObject
System.Windows.DependencyObject
System.Windows.Freezable
System.Windows.Media.Animation.Animatable
System.Windows.Media.Animation.Timeline
System.Windows.Media.Animation.AnimationTimeline
System.Windows.Media.Animation.DoubleAnimationBase
System.Windows.Media.Animation.DoubleAnimation
System.Windows.Media.Animation.DoubleAnimationUsingKeyFrames
System.Windows.Media.Animation.DoubleAnimationUsingPath
System.Windows.Threading.DispatcherObject
System.Windows.DependencyObject
System.Windows.Freezable
System.Windows.Media.Animation.Animatable
System.Windows.Media.Animation.Timeline
System.Windows.Media.Animation.AnimationTimeline
System.Windows.Media.Animation.DoubleAnimationBase
System.Windows.Media.Animation.DoubleAnimation
System.Windows.Media.Animation.DoubleAnimationUsingKeyFrames
System.Windows.Media.Animation.DoubleAnimationUsingPath
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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