Assembly: PresentationFramework (in PresentationFramework.dll)
Return ValueType: System.Double
null if this clock is Stopped, or 0.0 if this clock is active and its Timeline has a Duration of Forever; otherwise, a value between 0.0 and 1.0 that indicates the current progress of this clock within its current iteration. A value of 0.0 indicates no progress, and a value of 1.0 indicates that the clock is at the end of its current iteration.
To use this method to retrieve information about a storyboard's clock, the storyboard must be controllable. To make a storyboard controllable in code, you must use the appropriate overload of the storyboard's Begin method and specify true to make it controllable. For an example, see How to: Control a Storyboard After It Starts.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.