Child node count in NodeDataBound event

[Russ]

Is a node's child node count available in the NodeDataBound event? 

This code...

protected void RadTreeView1_NodeDataBound(object sender, RadTreeNodeEventArgs e)
{
    if (e.Node.Nodes.Count > 0)
        throw new Exception("bang");
}

...never seems to throw an exception. 

It makes sense that it might not have the child nodes count until the tree is fully databound, but I just wanted to make sure that is the case or if I'm overlooking something.

Thanks... Russ

[Dimitar Terziev]

Hello Russ,

By default tree nodes are binded before their child nodes so you can't get child node count when a node is databounded. Your code never throws an exception for this particular reason, the count is always 0 and the condition in the if statement is never fulfilled. If you change it to :

try
       {
           if (e.Node.Nodes.Count == 0)
           {
               throw new Exception();
           }
       }
       catch (Exception ex)
       {
           Response.Write(ex.Message);
       }

an exception will be thrown for every item in the Treeview.

Best wishes,
Dimitar Terziev
the Telerik team

[Russ]

Hi Dimitar - That is what I thought the case might be. Just wanted to be sure.

Thanks for your response!

...Russ