I’m having the following situation when using AS3:
I’m adding a movieClip from the library in Flash CS3 to the stage by using addChild. I call addChild from a function within the constructor of a class.
I do it as follows: parent.addChild(myMovieClip);
Later when i intend to remove the movieClip, then removeChild is called from within another function in the constructor.
So then i do parent.removeChild(), which works.
But in another instance i call removeChild in a function within a function in the constructor, after which i do parent.parent.removeChild(). However the last instance gives an error during runtime in the output window.
I suspect i do not fully understand the concept of the keywords, parent, child and root. I can’t seem to get things to work without errors emerging in the output window during runTime.
The following errors emerge in the output window:
ArgumentError: Error #2025: The supplied DisplayObject must be a child of the caller.
at flash.display:
isplayObjectContainer/removeChild()
at MethodInfo-247()
at flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEventFunctio n()
at flash.events::EventDispatcher/dispatchEvent()
at flash.utils::Timer/flash.utils:Timer::tick()
The way i understood the parent keyword was as follows. When i call addChild in a function in the constructor, then it is called within the scope of that function only, but not in the scope of the constructor. So by doing parent.addChild(); i expand the scope of addChild() to the constructor. So when calling removeChild() from another function i have to access the same scope as i did with addChild. So what i then do is parent.removeChild(); Which seems to work.
However the trouble comes when i have to call removeChild in a function within a function within the constructor. So that is 1 level deeper than before, but to still be able to access the original scope of the constructor to which addChild() was expanded i do parent.parent.removeChild(). Now exactly this is what i suspect creates the error during runtime, although i’m not entirely sure.
I suspect that this/my understanding of the parent keyword is wrong as i can’t get it to work properly.
Can someone explain this concept to me and/or provide a solution to this problem?
