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OnClientNodeExpanding not working in RadTreeView

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Abhishek
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Abhishek asked on 17 Jun 2010, 09:59 AM
Hi,

I have a RadTreeView in a web page. I want to handle the event when '+' is clicked to expand a node.
When I try to handle it on server side it works fine.
But when I try to handle this event in JavaScript using OnClientNodeExpanding it does not work.
Please help.

Regards,
Abhishek Jain

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Shinu
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answered on 17 Jun 2010, 11:22 AM
Hello Abhishek,

Have you tried correct method to attach the OnClientNodeExpanding event, that is without including brackets with handler name?

Check out the example:
aspx:
 
<telerik:RadTreeView ID="RadTreeView1" OnClientNodeExpanding="OnClientNodeExpanding" 
     runat="server" CheckBoxes="True" ShowLineImages="False"
   . . . 

client code:
 
<script language="javascript" type="text/javascript"
    function OnClientNodeExpanding(sender, args) { 
        alert("OnClientNodeExpanding fired"); 
    } 
</script> 

Could you paste the code that you tried?

-Shinu.
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Abhishek
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answered on 17 Jun 2010, 11:37 AM
Hi,

aspx
<radT:RadTreeView ID="RadTreeView1" TabIndex="1" runat="server" Skin="Web20" OnClientNodeExpanding="nodeExpanding" > 

clien code
<script language="javascript" type="text/javascript">    
    function nodeExpanding(sender, args) {    
        alert("Node is expanding");    
    }    
</script>   

i can't find a problem with the way code has been written.
But it does not work.
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Yana
Telerik team
answered on 17 Jun 2010, 12:10 PM
Hi Abhishek,

Which control exactly you're using - RadTreeView for ASP.NET or RadTreeView for ASP.NET AJAX?

All the best,
Yana
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Abhishek
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answered on 17 Jun 2010, 12:29 PM
Hi,

I'm using  RadTreeView for ASP.NET AJAX.

Regards,
Abhishek Jain
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Yana
Telerik team
answered on 18 Jun 2010, 12:35 PM
Hello Abhishek,

I've tested the event again and it's fired without a problem. Please send us a simple page where the erroneous behavior occurs. Thanks

Regards,
Yana
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Abhishek
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Shinu
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Abhishek
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Yana
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