Storyboard.Resume Method (FrameworkElement)
Assembly: PresentationFramework (in PresentationFramework.dll)
Resuming a storyboard that is not paused has no effect.
To interactively control this storyboard, you must use the same containingObject parameter when calling the interactive methods that you used to begin the storyboard. A controllable storyboard can pause, resume, seek, stop, and be removed. 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.
Seeking a paused storyboard does not resume it. The only way to resume a paused storyboard is to use the Resume method. Calling the Begin method after the storyboard has started replaces the old storyboard, which has the appearance of resuming it.
Resuming a paused a storyboard's clock triggers the CurrentGlobalSpeedInvalidated event.