Antwort: tree2 questions

[mathias . werlitz]

The problem is selected.getIdentifier()does not return the String that is used in the TreeState for storing the expanded nodes.
The TreeState does not use the TreeNode.identifier.
You have to provide a NodeId String that represents the path to the node in the model like "0:1:2". Currently there is no method in the TreeModel that generates this NodeId or Path for a given TreeNode instance.

[EMAIL PROTECTED] schrieb am 22.08.2005 14:28:42:

> Sorry for troubling you guys, but i am having a few
> dificulties dealing with tree2.
>
> I am using it dynamically, that is, the user creates
> the nodes, gives them names, and saves them.
>
> This part works fine.
>
> The problem is when i create a node that is a children
> to another node.
>
> After the user has selected a node, when he presses
> the create button, i am adding a node to the parent
> node.
>
> The child node consists of an inputText and a button
> to save the name.
>
> The problem is that the parent node is not expanded.I
> have read about the TreeState, so i added it, and i
> programatically set the parent node to expanded, but
> it does not work.
>
> Only if i manually click on the + sign does the parent
> node display the new children node.
>
>
> Some code:
>
> initialization:
>
> root = new TreeNodeBase("foo-folder", "Inbox","0",
> true);
> state = new TreeStateBase();
> tree = new TreeModelBase (root);
> tree.setTreeState(state);
>
> Here is what i am doing in order to expand the parent
> node:
>
> temp = new TreeNodeBase("edit","Insert
> Text",""+counter,true);
>
> //selected is the parent node
> selected.setLeaf(false);
> selected.getChildren().add(temp);
>
> if(!state.isNodeExpanded(selected.getIdentifier()))
> state.toggleExpanded(selected.getIdentifier());
>
>
> And the result is that the parent node is not expanded
> at all.
> So the ideia is for the parent node to expand and show
> the new children with the edit controls.
>
>
> Any ideias ?
>
>
> Guilherme Gomes
>
>
>
>      
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