EasingDoubleKeyFrame Class
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Defines a property that enables you to associate an easing function with a DoubleAnimationUsingKeyFrames key-frame animation.
System::Object
System.Windows::DependencyObject
System.Windows.Media.Animation::DoubleKeyFrame
System.Windows.Media.Animation::EasingDoubleKeyFrame
System.Windows::DependencyObject
System.Windows.Media.Animation::DoubleKeyFrame
System.Windows.Media.Animation::EasingDoubleKeyFrame
Assembly: System.Windows (in System.Windows.dll)
XMLNS for XAML: Not mapped to an xmlns.
The EasingDoubleKeyFrame type exposes the following members.
| Name | Description | |
|---|---|---|
 | Dispatcher | Gets the Dispatcher this object is associated with. (Inherited from DependencyObject.) |
| EasingFunction | Gets or sets the easing function that is applied to the key frame. |
| KeyTime | Gets or sets the time at which the key frame's target Value should be reached. (Inherited from DoubleKeyFrame.) |
| Value | Gets or sets the key frame's target value. (Inherited from DoubleKeyFrame.) |
| Name | Description | |
|---|---|---|
 | CheckAccess | Determines whether the calling thread has access to this object. (Inherited from DependencyObject.) |
| ClearValue | Clears the local value of a dependency property. (Inherited from DependencyObject.) |
| Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
 | Finalize | Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
| GetAnimationBaseValue | Returns any base value established for a Windows Phone dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.) |
| GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| GetValue | Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| ReadLocalValue | Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.) |
| SetValue | Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.) |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
The following example shows how to use key frames with easing functions associated with them to create an animation of a rectangle that contracts upward, slows down, then expands downward (as though falling), and then bounces to a stop.
<StackPanel x:Name="LayoutRoot" Background="Transparent"> <StackPanel.Resources> <Storyboard x:Name="myStoryboard"> <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Height" Storyboard.TargetName="myRectangle"> <!-- This keyframe animates the ellipse up to the crest where it slows down and stops. --> <EasingDoubleKeyFrame Value="30" KeyTime="00:00:02"> <EasingDoubleKeyFrame.EasingFunction> <CubicEase EasingMode="EaseOut"/> </EasingDoubleKeyFrame.EasingFunction> </EasingDoubleKeyFrame> <!-- This keyframe animates the ellipse back down and makes it bounce. --> <EasingDoubleKeyFrame Value="200" KeyTime="00:00:06"> <EasingDoubleKeyFrame.EasingFunction> <BounceEase Bounces="5" EasingMode="EaseOut"/> </EasingDoubleKeyFrame.EasingFunction> </EasingDoubleKeyFrame> </DoubleAnimationUsingKeyFrames> </Storyboard> </StackPanel.Resources> <Rectangle x:Name="myRectangle" MouseLeftButtonDown="Mouse_Clicked" Fill="Blue" Width="200" Height="200" /> </StackPanel>
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