TreeItemRenderer is an AS class, but not an mxml tag.
You can't do a serious TreeItemRenderer in-line. See this example for a start: http://www.cflex.net/showFileDetails.cfm?ObjectID=575 Tracy ________________________________ From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of an0one Sent: Tuesday, June 17, 2008 11:18 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] How to compose a super tree item renderer using TreeItemRenderer and others Hi, I want a custom tree item renderer that consists of a basic TreeItemRenderer(to reuse its tree node icons) and several other standard controls(they are also IListItemRenderer implementors). Let's call it ComboTreeItemRenderer, and to simplify the matters, assume it is composed of a TreeItemRenderer and a Label. This is my first try: <mx:Tree width="100%" height="100%" id="tagTree" dataProvider="{myTags}" change="handleTagSelection(event);"> <mx:itemRenderer> <mx:Component> <mx:HBox> <mx:TreeItemRenderer> </mx:TreeItemRenderer> <mx:Label text="[EMAIL PROTECTED]"> </mx:Label> </mx:HBox> </mx:Component> </mx:itemRenderer> </mx:Tree> And the first error I met: "Could not resolve <mx:TreeItemRenderer> to a component implementation." I don't believe TreeItemRenderer can not be used in mxml coding, so I guess I was just not coding in the right way. But what's the right way then? However, that's not really what I was stumped by, since I found that I could write a custom component(named MyTreeItemRenderer) which extends TreeItemRenderer(nothing to override, just to work around the "could no resolve" error), and it could be resolved of course. So here is my second try: <mx:Tree width="100%" height="100%" id="tagTree" dataProvider="{myTags}" change="handleTagSelection(event);"> <mx:itemRenderer> <mx:Component> <mx:HBox> <mx:MyTreeItemRenderer> </mx:MyTreeItemRenderer> <mx:Label text="[EMAIL PROTECTED]"> </mx:Label> </mx:HBox> </mx:Component> </mx:itemRenderer> </mx:Tree> Now comes the really difficulties: I know I must assign values to some properties of MyTreeItemRenderer using information carried by data and listData, but what properties to assign value to? And what makes me even crazier is that I found neither listData and data was set(observed by overriding set listData and set data functions and find they were never called). Looking forward to seeing helpful hints. Thanks in advance.
