PowerEase::Power Property

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

Gets or sets the exponential power of the animation interpolation. For example, a value of 7 creates an animation interpolation curve that follows the formula f(t) = t7.

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

Syntax

C++

No code example is currently available or this language may not be supported.

XAML Attribute Usage

<PowerEase Power="double" .../>

Property Value

Type: System::Double
The exponential power of the animation interpolation. This value must be greater or equal to 0. The default is 2.

Remarks

Dependency property identifier field: PowerProperty

The following example applies a PowerEase easing function with a Power property value of 20 to a DoubleAnimation to create a decelerating animation. Because the Power value is so high, the deceleration is sudden compared to if you used a lower value.

XAML


<StackPanel x:Name="LayoutRoot" Background="Transparent">
    <StackPanel.Resources>
        <Storyboard x:Name="myStoryboard">
            <DoubleAnimation From="30" To="200" Duration="00:00:3" 
                Storyboard.TargetName="myRectangle" 
                Storyboard.TargetProperty="Height">
                <DoubleAnimation.EasingFunction>
                    <PowerEase Power="20" EasingMode="EaseOut"/>
                </DoubleAnimation.EasingFunction>
            </DoubleAnimation>
        </Storyboard>
    </StackPanel.Resources>

    <Rectangle x:Name="myRectangle" MouseLeftButtonDown="Mouse_Clicked" 
     Fill="Blue" Width="200" Height="30" />

</StackPanel>