Antwort: tree state clear/reset

[mathias . werlitz]

What version of myfaces and of the tree component do you use <t:tree> or <t:tree2>?

[EMAIL PROTECTED] schrieb am 22.08.2005 15:28:00:

> Hi!
>
> I am using the myfaces tree component. It works well but now I would like to
> replace the rootnode after pressing a button in my app.
> On pressing the button I do a
> tree = (TreeModel) new Tree_Model(new Long(text));
>
> The Tree_Model(new Long(text)) generates a new TreeModel with a new
> RootNode.
>
> That works too - but if there are some nodes expanden before i "replace" the
> tree I always get exceptions.
>
> It seems that the "state" (which node is collapsed and which node is
> expanded) will be applied to the new tree. And this can't work.
>
> my Question: Where is the "state" saved? How can i "reset" the
> tree-component that it forgets which nodes should be collapsed and which
> should be expanded?
>
>
> Greeting,
> Tom