It looks like I just need to look more into the TreeDataProvider API. I'm not very familiar with it (as you can tell), and I guess the behavior I'm experiencing does make sense. It just gets difficult when I'm trying to make an object that has multiple properties, including arrays, be the 'data' part of the tree node, as the arrays end up showing as children (which does make sense).
I guess, my recommendation to MM would be to document this component a bit better, as I really had no clue where to start with looking for a solution :) Thanks, all! /****************************************** * Jeff Beeman ******************************************/ -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of alex_harui Sent: Friday, June 03, 2005 4:29 PM To: [email protected] Subject: [flexcoders] Re: Tree dataProviders & backingObject The Tree needs a hierarchy of objects each of which implement TreeDataProvider. That way, at each level in the tree we can ask the current node for its children and other data. Built-in Flash types like XMLNode don't support TreeDataProvider and it is too hard to mix it in (and bad practice as well). Thus we take each XMLNode and wrap it in a TreeDataProvider and put the original node in a backingObject. There is no API for limiting tree depth. I'd think twice before implementing it because it would seem to me that the tree should faithfully represent its data so, if the data has only two levels then fine, but if it has more you should show that too. However, if you really gotta do it, you have a couple of choices depending on what you want the UI to look like. You could override setIsOpen on the Tree and block opening of things that are too deep, but the those nodes at level 2 with children will still look like folders. You could customize a TreeDataProvider to pretend that nodes of level 2 have no children. That's probably the best option. --- In [email protected], "Matt Chotin" <[EMAIL PROTECTED]> wrote: > Check out the TreeDataProvider API in the ASDoc. The backingObject is > used by one implementation of that API (called TreeNode) which is used > when the object you are passing to the Tree does not implement > TreeDataProvider itself. > > > > I don't think we provide an easy way to limit the depth of the tree. I > suppose you could simply implement the TreeDataProvider API yourself to > make sure that children that are too deep aren't displayed. > > > > Matt > > > > ________________________________ > > From: [email protected] [mailto:[EMAIL PROTECTED] On > Behalf Of Jeff Beeman > Sent: Friday, June 03, 2005 2:50 PM > To: [email protected] > Subject: [flexcoders] Tree dataProviders & backingObject > > > > Is there any sort of documentation on the way the Tree component deals > with it's dataProvider? > > Using the "Object Inspector" from > http://www.coenraets.com/viewarticle.jsp?articleId=83 I can see that > binding my dataProvider for the tree to an object creates a subobject > called backingObject that actually holds the data. > > So, I've got 2 additional questions - Why does it do this? And, a > related question is, how do I limit how many nodes of an object the tree > actually uses for it's display? (For example, I only want it to go 2 > levels into a dataProvider) > > > /******************************************* > * Jeff Beeman > * Digital Media & Instructional Technologies > * Arizona State University > *******************************************/ > > > > > > ________________________________ > > Yahoo! Groups Links > > * To visit your group on the web, go to: > http://groups.yahoo.com/group/flexcoders/ > > * To unsubscribe from this group, send an email to: > [EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> > > * Your use of Yahoo! Groups is subject to the Yahoo! Terms of > Service <http://docs.yahoo.com/info/terms/> . Yahoo! Groups Links Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
