Storyboard completed

Question

I seem to be getting in to my storyboard completed event multiple times, can anyone help me with this issue - here is the code I do to start the storyboard:

 

private void SurfaceWindow_PreviewContactHoldGesture(object sender, ContactEventArgs e)

{

currentSB = (Storyboard)FindResource("wipeTransition");

currentSB.Completed += new EventHandler(sb_Completed);

 

currentSB.Begin(myUserControl);

}

 

 

void sb_Completed(object sender, EventArgs e)

 

 

Object obj = loadFile(fileName);

 

 

if (obj != null)

 

}

 Thanks

 

 

 

 

 

 

{

 addObjectToUsercontrol(obj);

{

Thanks

Answer 1

It looks like you are adding a handler for the storyboard Completed event each time you get a PreviewContactHoldGesture event. If you add multiple event handlers, you'll get multiple events. Try putting these two lines:

currentSB = (Storyboard)FindResource("wipeTransition");

currentSB.Completed += new EventHandler(sb_Completed);

in another place that only gets called once, or at least use a flag to indicate you've already added it once.

Doug