You can also create a custom data descriptor and set the dataDescriptor 
property of the tree component.  See 
http://livedocs.adobe.com/flex/3/html/help.html?content=about_dataproviders_6.html
 

--- In flexcoders@yahoogroups.com, Oleg Sivokon <olegsivo...@...> wrote:
>
> The best way would be to implement your own ICollectionView, however, this
> would be a complex task.
> For your example, I'd do it like so:
> 
> private var ac:ArrayCollection = new ArrayCollection([
>             { "Animals": ["dog", "cat"],
>             { "Fruits": ["orange", "apple"] }
>             ]);
> 
> 
> Best.
> 
> Oleg
>


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