Disable click of parents in hierarchy

[KevinMc]

Is ther anyway to disable click on treeview items that have children? I.E. if using treeview in combobox example how and a hierarchy like this (retrieved from sql using sqldatasource)

        Papers
            Technical
            Forms
            Brochures

How would i disable the Papers node so that the user could only select it's children and not Papers itself?

[Ben Turpin]

Hi Kevin.

From a client-side approach you can achieve this by setting up a funcion on the onClientClicked treeview property and disabling from the parente node like this:

     function onNodeClicked(sender,args)
    {
        var clickedNode = args.get_node();
        UnselectParentNode(clickedNode);
    }

    function UnselectParentNode(node)
    {
        var parentNode = node.get_parent();
        parentNode.disable();
    }

Hope it helps.
Ben.

[Veselin Vasilev]

Hello Ben Turpin,

You can subscribe to the OnClientNodeClicking event of the treeview and check if the node has children

function ClientNodeClicking(sender, eventArgs)
{
 var node = eventArgs.get_node();
 if(node.get_nodes().get_count() > 0)
  {
      eventArgs.set_cancel(true);
  }
}

I hope this helps.

Kind regards,
Veskoni
the Telerik team

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