PrimeFaces Tree component, setting selected node from managed bean

Question

I'm running Primefaces 3.2 and JSF 2.0 on Glassfish 3. I've tried a lot, to programatically set the selected node from a managed bean. That includes setting the selected node like this: ``` public void setSelectedTreeNode(String name) { TreeNode root = treeBean.getRoot(); List tree = root.getChildren(); for(TreeNode node:tree) { if(node.getData().toString().contains(name)) { System.out.println("found the node to select"); treeBean.setSelectedNode(node); break; } } RequestContext context = RequestContext.getCurrentInstance(); context.update(":navForm:treeSingle"); } ``` The "found the node to select" gets printed in the terminal, but the node is not selected in the Tree in the web page.. The tree is like this: ```

Accepted Answer

I solved it using:

```
node.setSelected(true);
```

I discovered that selecting the node is not enough for the "tree component" to expand from root node to selected node.

For this, I used the following approach. On the view :

```
 <p:ajax event="expand" listener="#{tree.onExpand}"/>
```

on the java code:

```
public void onExpand(NodeExpandEvent event) {
    expand(event.getTreeNode());
}

private void expand(TreeNode treeNode){
    if (treeNode.getParent()!=null){
        treeNode.getParent().setExpanded(true);
        expand(treeNode.getParent());
    }
}
```

PrimeFaces Tree component, setting selected node from managed bean

Solution

Problem