I have a PopUpButton on which I am setting a Menu as the popUp
property. I have found that the popUp attribute is being nulled when
the PopUpButton is removed from the stage... which causes my button to
not function properly when added back to the stage. I traced the issue
to the following code in PopUpButton.as which appears to be incorrect.
In this code the _popUp member (backing for the popUp setters and
getters) is nulled.

private function removedFromStageHandler(event:Event):void
{
// Ensure we've unregistered ourselves from PopupManager, else
// we'll be leaked.
if (_popUp) {
PopUpManager.removePopUp(_popUp);
_popUp = null;
}
}

To workaround this issue I had to listen for the addedToStage event in
my view that uses this component and re-set the popUp property each time
as follows.

/**
* Called each time this view is added to the stage. We
need this to work
* around an issue where the PopUpButton has a null popUp
* property each time it has been removed from the stage.
*/
public function handleAddedToStage():void{
if(this.createButton != null && this._buttonMenu != null){
this.createButton.popUp = _buttonMenu;
}
}


Has anybody else seen this? Can somebody please let me know if this is
a bug in the toolkit? The workaround works fine... but seems like it
should not be necessary.

Thanks
Scott

--
Scott Melby
Founder, Fast Lane Software LLC
http://www.fastlanesw.com