DoubleAnimationBase Class

Abstract class that, when implemented, animates a Double value.

Namespace: System.Windows.Media.Animation
Assembly: PresentationCore (in presentationcore.dll)
XML Namespace:

public abstract class DoubleAnimationBase : AnimationTimeline
public abstract class DoubleAnimationBase extends AnimationTimeline
public abstract class DoubleAnimationBase extends AnimationTimeline
This class is abstract; see Inheritance Hierarchy for derived non-abstract classes usable in XAML.

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=""
  WindowTitle="KeyFrame Animations">

  <!-- Key frame animations enable you to create complex animations by specifying multiple destination values
      and controlling the animation's interpolation method. -->
    <!-- The position of this rectangle is animated using a key frame animation. -->
    <Rectangle Name="myRectangle"
        <EventTrigger RoutedEvent="Rectangle.Loaded">
            <Storyboard RepeatBehavior="Forever">

              <!-- Animate Canvas.Left attached property using 3 KeyFrames which animates
                the rectangle along a path. This animation repeats indefinitely. -->

                  <!-- 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" />

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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.

.NET Framework

Supported in: 3.0

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