how to clear a label with javascript in vb.net.

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.NET3.5

My Code is:

XML

<script type="text/javascript">
  function clear(){
     var labelObj = document.getElementById("<%= lbler.ClientID %>");

if (labelObj.innerHTML !="")
{
    labelObj .innerHTML="";
   }

  }
</script>

When label is Null initially ,then javascript throws an error Null or object already Null
how to prevent this error

Posted 14-Mar-12 22:38pm

Deepak Manuja

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Abhinav S · Answer 1 · 2012-03-14T22:43:00

Solution 1

You should call the Clear() method only when the page loads.
From the error, it looks like the code is called during page load which should not happen in the first place.

Posted 14-Mar-12 22:43pm

Abhinav S

Comments

Deepak Manuja 15-Mar-12 4:47am

actually clear() method is called at tabcontainer's OnClientActiveTabChanged Event.