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Timeline.SpeedRatio Property

Silverlight

Gets or sets the rate, relative to its parent, at which time progresses for this Timeline.

Namespace:  System.Windows.Media.Animation
Assembly:  System.Windows (in System.Windows.dll)
C#
VB
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public double SpeedRatio { get; set; }
XAML Attribute Usage
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<timeline SpeedRatio="double"/>

Property Value

Type: System.Double
A finite value greater than 0 that specifies the rate at which time progresses for this timeline, relative to the speed of the timeline's parent. If this timeline is a root timeline, specifies the default timeline speed. The value is expressed as a factor where 1 represents normal speed, 2 is double speed, 0.5 is half speed, and so on. The default value is 1.

Dependency property identifier field: SpeedRatioProperty

A timeline's SpeedRatio setting does not have an effect on its BeginTime; that time is relative to the timeline's parent or, if the timeline is a root timeline, the moment at which the timeline's clock was begun.

Momentary or nonlinear apparent speed changes to animations can be accomplished using spline animations. For details, see Key-Frame Animations.

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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Annotations FAQ
Changing the speedRatio of a running storyboard
Hi

You should address changing the SpeedRatio of a running storyboard. Why is there always skipped frames when you change the speed of a running storyboard? The animation jumps and it is very distracting.

I'm showing people how milk flows though a positive displacement pump, allowing them to slow it down while it is running is fun and insightful - the jumped frames are very negative.

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