EasingPointKeyFrame Class

May 11, 2014

Defines a property that enables you to associate an easing function with a PointAnimationUsingKeyFrames key-frame animation.

System.Object
  System.Windows.DependencyObject
    System.Windows.Media.Animation.PointKeyFrame
      System.Windows.Media.Animation.EasingPointKeyFrame

Namespace:  System.Windows.Media.Animation
Assembly:  System.Windows (in System.Windows.dll)
XMLNS for XAML: Not mapped to an xmlns.

'Declaration
Public NotInheritable Class EasingPointKeyFrame _
	Inherits PointKeyFrame
<EasingPointKeyFrame .../>

The EasingPointKeyFrame type exposes the following members.

  NameDescription
Public methodEasingPointKeyFrameInitializes a new instance of the EasingPointKeyFrame class.
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  NameDescription
Public propertyDispatcherGets the Dispatcher this object is associated with. (Inherited from DependencyObject.)
Public propertyEasingFunctionGets or sets the easing function that is applied to the key frame.
Public propertyKeyTimeGets or sets the time at which the key frame's target Value should be reached. (Inherited from PointKeyFrame.)
Public propertyValueGets or sets the key frame's target value. (Inherited from PointKeyFrame.)
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  NameDescription
Public methodCheckAccessDetermines whether the calling thread has access to this object. (Inherited from DependencyObject.)
Public methodClearValueClears the local value of a dependency property. (Inherited from DependencyObject.)
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetAnimationBaseValueReturns any base value established for a Windows Phone dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodGetValueReturns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodReadLocalValueReturns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.)
Public methodSetValueSets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
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  NameDescription
Public fieldStatic memberEasingFunctionPropertyIdentifies the EasingFunction dependency property.
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The following example shows how to use key frames with easing functions associated with them to create an animation that simulates an oval going up in the air and falling back down, where it bounces to a stop.


<Canvas Width="400" Height="300">
    <Canvas.Resources>
        <Storyboard x:Name="myStoryboard">

            <PointAnimationUsingKeyFrames
             Storyboard.TargetProperty="Center"
             Storyboard.TargetName="MyAnimatedEllipseGeometry">

                <!-- This keyframe animates the ellipse up to the crest 
                     where it slows down and stops. -->
                <EasingPointKeyFrame Value="50,20" KeyTime="00:00:02">
                    <EasingPointKeyFrame.EasingFunction>
                        <CubicEase EasingMode="EaseOut"/>
                    </EasingPointKeyFrame.EasingFunction>
                </EasingPointKeyFrame>

                <!-- This keyframe animates the ellipse back down and makes
                     it bounce. -->
                <EasingPointKeyFrame Value="50,200" KeyTime="00:00:06">
                    <EasingPointKeyFrame.EasingFunction>
                        <BounceEase Bounces="5" EasingMode="EaseOut"/>
                    </EasingPointKeyFrame.EasingFunction>
                </EasingPointKeyFrame>

            </PointAnimationUsingKeyFrames>
        </Storyboard>
    </Canvas.Resources>
    <Path MouseLeftButtonDown="Mouse_Clicked" Fill="Blue">
        <Path.Data>

            <!-- Describes an ellipse. -->
            <EllipseGeometry x:Name="MyAnimatedEllipseGeometry"
             Center="50,200" RadiusX="15" RadiusY="15" />
        </Path.Data>
    </Path>
</Canvas>



' When the user clicks the ellipse, the animation
' begins. 
Private Sub Mouse_Clicked(ByVal sender As Object, ByVal e As MouseEventArgs)
    myStoryboard.Begin()
End Sub


Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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

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