Home / Community & Support / Developer Productivity Tools Forums / ASP.NET > Treeview > HOWTO: Disable node collapse in RADTREEVIEW control

• Matthew Petersen

  Posted on Mar 18, 2011 (permalink)

  How do i disable node collapse in a radtreeview control?
  
  I tried setting the onclientnodeclicked="return false;" which does stop the node from being collapsed but then in turn killed all the client-side asp.net validators i had on the page. (validation just didnt execute for the page at all.)
  
  Im using the latest 2011.1.315.40 release of RadControls for ASP.Net AJAX.
  
  Any assistance appreciated.
  
  regards,
  
  Matt

• Answer Princy MVP

  Posted on Mar 18, 2011 (permalink)

  Hello Mathew,
  
  Try the following code snippet in 'OnClientNodeCollapsing' event of RadtreeView.
  
  ASPX:
  

  <telerik:RadTreeView runat="server" ID="RadTreeView1" OnClientNodeCollapsing="ClientNodeCollapsing">

        .   .   .   .   .    .  

  </telerik:RadTreeView>

  
  Java Script:
  

  <script type="text/javascript">

       function ClientNodeCollapsing(sender, args) {

           args.set_cancel(true);

      }

  </script>

  
  Thanks,
  Princy.

• Matthew Petersen

  Posted on Mar 20, 2011 (permalink)

  Thanks, that works perfectly.
  
  

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