If I open all the nodes in the tree, i.e. make them visible though
and then try to get a handle to one of the custom item renderers I'm
getting that it is null, i.e. itemRenderer in code below is always
null.
for each (var model:String in _carModels)
{
for each (var item:XML in dp..node)
{
if ([EMAIL PROTECTED] == model)
{
trace("model="+model);
trace("[EMAIL PROTECTED]"[EMAIL PROTECTED]);
var itemRenderer:CheckTreeRenderer = tree.itemToItemRenderer
(item) as CheckTreeRenderer;
trace("itemRenderer="+itemRenderer);
itemRenderer.select();
}
}
}
--- In flexcoders@yahoogroups.com, "Tracy Spratt" <[EMAIL PROTECTED]> wrote:
>
> It sounds like you may not understand that item renderers are
recycled,
> and do not even exist when non-visible.
>
>
>
> What exactly do you mean by "initialize" the item renderer? They
are
> components, and live the normal component lifecycle, including
> initialize and creationComplete events. "initialization" that is
not
> dependent on the item node data can be done in handlers for those
> events.
>
>
>
> Any properties or behaviors that are dependent on the item node data
> must be manipulated through the set data, commitProperties,
> updateDisplayList and invalidation mechanisms.
>
>
>
> My bet is a "customer" checkbox IS dependent on the underlying
data. It
> must get its value from the data and user interaction must be
persisted
> in the data.
>
>
>
> If you already know all this sorry, I may be misunderstanding your
> question, otherwise I suggest that you find an existing item
renderer to
> use as an example. There will be many available. Google Alex Harui
> itemRenderer.
>
>
>
> Tracy
>
>
>
> ________________________________
>
> From: flexcoders@yahoogroups.com
[mailto:[EMAIL PROTECTED] On
> Behalf Of paulbohnenkamp
> Sent: Tuesday, September 09, 2008 12:31 AM
> To: flexcoders@yahoogroups.com
> Subject: [flexcoders] tree component and null itemRenderer
>
>
>
> I've got a tree component with an customer checkbox itemRenderer
and on
> init of the outer component I need all the itemRenderers to be
> initialized so I can call a method on the itemRenderer to select
them
> based on the result of a web service call. Is there a way to do
this?
> Somehow loop through the items in the tree dataprovider and select
them
> all so the itemRenderers are all initialized?
>
> I tried tree.openItems and looping through and doing tree.expandItem
> (item, true) but that doesn't seem to init the itemRenderers.
>
