RF 4.1-M4 Programmatically set Tree node

[jsoye]

Hi,

I have a <rich:tree> and I'm able to allow the user to reorder it, i.e. if I have the following tree,

myTree

      +-----eee

      +-----aaa

      +-----bbb             <--- hightlighted because user selected it

the user can select node 'bbb' and move it above 'aaa' by clicking on a 'promote' button. Although it works, the node that's

highlighted remains in the same position, i.e. where 'bbb' was - the 3rd position in this example,

myTree

      +-----eee

      +-----bbb

      +-----aaa              <-----this is highlighted after user hits the 'promote' button

Is there a way to programmatically select (highlight) the node? I've tried using "setRowKey" and "setSelection" (methods of UITree)

but nothing happens, e.g.

Integer sortOrder = myNode.getSortOrder();

SequenceRowKey srk = new SequenceRowKey("root","S"+ (sortOrder.intValue()-1) );

...

tree.setRowKey(srk);

Collection<Object> collection = new ArrayList<Object>();

collection.add(srk);

tree.setSelection(collection);

I'm only guessing at this code, as it seems like the reverse of the TreeSelectionChanged code in the showcase. Am I on the right track

(i.e. are either of these the correct method to use) or am I heading towards Mars?

Thanks :-)

[jsoye]

Oops. I missed spotting the "selection" attribute in <rich:tree>. This was the answer. Just point it at the collection, i.e.

<rich:tree id="myTree" ... selection="#{treeBean.treeSelection}">

</rich:tree>

@Stateful

@Named

@ConversationScoped

public class TreeBean implements java.io.Serializable {

private Collection<Object> treeSelection = new ArrayList<Object>();  // plus getters & setters

...

     public void promoteNode() {

          Integer sortOrder = myNode.getSortOrder();

          SequenceRowKey srk = new SequenceRowKey("root","S"+ (sortOrder.intValue()-1) );

          ...

          Collection<Object> collection = new ArrayList<Object>();

          collection.add(srk);

          setTreeSelection(collection);

     }

}