Unable to Stop post backing on RadTab change

[Srinath]

I am unable to validate JavaScript Events before navingating to server side click event.

For instance I have 5 Tabs , I need to Check a condition client side, before posting back. If the condition is not satisfied I need to avoid post back of the page. But I am unable to validate such Javascript method.

I tried using  the below code on client side, but it not stopping the postback
============================================================

function

 

OnClientTabSelecting(sender,args)

 

{

 

var newTabValue = args.get_tab().get_value();

 

 

var oldTabValue = sender.get_selectedTab().get_value();

 

document.getElementById(

'<%=hdnCurrentTabid.ClientID%>').value=oldTabValue;

 

 

 

return false;
}

===============================================================
Please Help me out soon on this. I really struck up wit this :(.



--Srinath

[Shinu]

Hi Srinath,

You can cancel the PostBack by using args.set_cancel(true) method.

JavaScript:

<script type="text/javascript">
function OnClientTabSelecting(sender,args)
{
    var newTabValue = args.get_tab().get_value();
    var oldTabValue = sender.get_selectedTab().get_value();
    if(oldTabValue == 'Value 2') // Condition
    {
        args.set_cancel(true);
    }
}
</script>

Thanks,
Shinu.