<x:tree id="tree1" .....

<x:treeSelectionListener type="dosmed.arbre.Tree1Action"/>  // build a class
which implement treeSelectionListener(catche event when you select a node)

<x:iconProvider type="dosmed.arbre.TreeIcon"/> // build a class which
implement iconProvider (update image of a node)

</x:tree>



public class Tree1Action implements TreeSelectionListener{

 public Tree1Action(){
     super();
     this.init();
 }

    public void init(){
     System.out.println("init.........");

// build your tree

    }


  public void valueChanged(TreeSelectionEvent event){

    DefaultMutableTreeNode selectNode = (DefaultMutableTreeNode)
event.getNewSelectionPath().getLastPathComponent(); // it's tha node which
is selected in interface.


}


i can not find any documentation too , so i have download the source code,
and i try to understand it.

good luck to you.


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