DoubleKeyFrame Class

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

An abstract class that defines an animation segment with its own target value and interpolation method for a DoubleAnimationUsingKeyFrames.

Inheritance Hierarchy


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


Public MustInherit Class DoubleKeyFrame _
    Inherits DependencyObject
public abstract class DoubleKeyFrame : DependencyObject

The DoubleKeyFrame type exposes the following members.


Name Description
DoubleKeyFrame Initializes a new instance of the DoubleKeyFrame class.



Name Description
Dispatcher Gets the Dispatcher this object is associated with. (Inherited from DependencyObject.)
KeyTime Gets or sets the time at which the key frame's target Value should be reached.
Value Gets or sets the key frame's target value.



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.)



Name Description
KeyTimeProperty Identifies the KeyTime dependency property.
ValueProperty Identifies the Value dependency property.



DoubleKeyFrame is an abstract class that defines Double value type key frames for several different techniques of key frame animation: DiscreteDoubleKeyFrame, EasingDoubleKeyFrame, LinearDoubleKeyFrame, SplineDoubleKeyFrame. To animate a Double with key frames, you define a DoubleAnimationUsingKeyFrames animation, and populate its KeyFrames property with one or more DiscreteDoubleKeyFrame, EasingDoubleKeyFrame, LinearDoubleKeyFrame, or SplineDoubleKeyFrame elements that define the key frames.

For more information, see the following DoubleKeyFrame derived objects: DiscreteDoubleKeyFrame, EasingDoubleKeyFrame, LinearDoubleKeyFrame, SplineDoubleKeyFrame.

Version Information

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0


Windows Phone

Thread Safety

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

See Also


System.Windows.Media.Animation Namespace


Other Resources

Animations, motion, and output for Windows Phone