[rich:tree]: how to populate children on node selection even

[lmk]

Hi,

yet another question that concern tree, Id like to add children on node selection because it takes a long time to calculate all nodes on the beginin.

I tried to use processSelection, but, I cannot get the selected object,

you use on richfaces demo

public void processSelection(NodeSelectedEvent event) {

 HtmlTree tree = (HtmlTree) event.getComponent();
}

this code throws a classCast exception, I got HtmlTree parent component but I dont fin how I can recover the selected item. should I use a4j:support?
here a snippet JSF code:

<rich:tree style="width:400px" value="#{bean.data}"
var="item" nodeFace="#{item.type}" switchType="ajax" ajaxSubmitSelection="true">
<rich:treeNode type="company">
<h:outputText value="#{item.name}" />
</rich:treeNode>
<rich:treeNode type="user" icon="./images/singer.gif" iconLeaf="./images/singer.gif"
nodeSelectListener="#{bean.processUserSelection}" data="#{item}">
<h:outputText value="#{item.firstname} #{item.lastname}" />
</rich:treeNode>
<rich:treeNode type="access">
<h:outputText value="#{item.login}" />
</rich:treeNode>
</rich:tree>

Hope it's clear enough.
regards!

[nbelaevski]

You can call org.richfaces.component.UITree#getTreeNode() method from inside listener to get selected TreeNode.

[lmk]

I have to use getParent and getRowData()! so now children are well populated;
juste one problem, how can I expand the selected node after add children?

[nbelaevski]

Try this:

tree.queueNodeExpand((TreeRowKey) tree.getRowKey())

[lmk]

It works very fine!!

thanks

best regards