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DoubleKeyFrameCollection Class
Visual Studio 2008
Represents a collection of DoubleKeyFrame objects.
Assembly: PresentationCore (in PresentationCore.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
'Declaration Public Class DoubleKeyFrameCollection _ Inherits Freezable _ Implements IList, ICollection, IEnumerable 'Usage Dim instance As DoubleKeyFrameCollection
<DoubleKeyFrameCollection .../>
<object> <object.property> oneOrMoreDoubleKeyFrameObjectElements </object.property> </object>
XAML Values
This collection is used as part of a DoubleAnimationUsingKeyFrames to animate a Double property value along a set of key frames.
The following example demonstrates how to use a DoubleAnimationUsingKeyFrames animation.
<!-- 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.DoubleKeyFrameCollection
System.Windows.Threading.DispatcherObject
System.Windows.DependencyObject
System.Windows.Freezable
System.Windows.Media.Animation.DoubleKeyFrameCollection
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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