I found one of Alex's posts. Here is the text:
"Once a month this issue comes up. Because there is no function olverloading in AS3, we can't change the parameter list of addChild, but basically, frameworks have rules and the rules for Flex are: Navigator children must be Containers Container children must be IUIComponents UIComponent children can be anything. I swear I replied to this thread two days ago, but answer is to instantiate a UIComponent and addChild your sprite to it. " Tracy ________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Tracy Spratt Sent: Monday, May 05, 2008 6:11 PM To: [email protected] Subject: RE: [flexcoders] Child items in custom component There are rules for what children can be added to what parents. Is it possible you are not following those rules? "sprite" is a much lowe level class than I have ever used, are you sure it can accept the child you are adding? Alex has posted these rules multiple times. Something like: Container can accept container or UIComponent, UIComponent can accept anything, ... etc I do not know whare sprite fits into that. Tracy ________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Weyert de Boer Sent: Monday, May 05, 2008 5:49 PM To: [email protected] Subject: Re: [flexcoders] Child items in custom component Sorry, to bug, but does anyone happen to have any ide? Weyert > Hello! > > I am currently a bit clueless regarding using Flex components. I am > currently trying to port a .NET component to Flex. Only I have some > problems. In a simplified form the problem is that I am trying to add > childs to the component. The idea is to use public method to add nodes > to the component. The code could be: > > var node: MyNode = new MyNode(); > node.width = node.height = 125; > myComponentInstance.addNode( node ); > > The addNode-method is basically contains: > > public function addNode( node: MyNode ): void { > _nodeContainer.addChild( DisplayObject(node) ); > invalidateDisplayList(); > } > > The _nodeContainer is a Sprite class which gets created in the overriden > createChildren-method. Now I would be expected that the MyNode-instance > (which just draws a simple rectangle 125x125) would be shown. Sadly > enough, this is not the case. > > Does anyone know what should be done to get this working? > > Yours, > Weyert de Boer > >
