i want call a javascript from serverside after a asynchronous post back

[snehasish]

hi; i want call a javascript from serverside after a asynchronous post back. my fragment code is like this........

	    function displayWindow()
	    {
	       alert("hi,welcome to asp.net world");
	    }

........................
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in server side i have write the code..

protected void cmdUpdate_Click(object sender, EventArgs e)
{
........
Page.RegisterStartupScript("MyScript",
"" +
"displayWindow();");
.....
}

but when i click it can not call javascript due to asynchronous post back. but i need to call javascript then. how can i call this javascript from server side? please help me.. :(

[Ashfield]

Javascript is client side, so you cannot call it from ther server side code

Bob Ashfield Consultants Ltd

[snehasish]

hi Bob, Thanks for reply.You told me that as javascript is in client side,i canot call them from server side.But i have called a client side javascript from serverside previously in synchronous postback by using Page.RegisterStartupScript() method. Wating for reply. Snehasish

[Ashfield]

Sorry, I misread your post, \I thoght it said excute the javascript on the server. Must read more carefully :-O

Bob Ashfield Consultants Ltd

[Rajdev Ramasamy]

Hi, This can be accomplished by using BeginRequest and EndRequest methods of PageRequestManager during asyncpostback. Sample:

<script language="javascript" type="text/javascript">
<!--
var prm = Sys.WebForms.PageRequestManager.getInstance();
prm.add_initializeRequest(InitializeRequest);
prm.add_endRequest(EndRequest);
var postBackElement;
function InitializeRequest(sender, args) {
postBackElement = args.get_postBackElement();
}
function EndRequest(sender, args) {
if (postBackElement.id == 'cmdUpdate') {
displayWindow();
}
}

// -->
</script>

Hope this would be useful. Please revert back on any queries. Thanks, Rajdev KR

[snehasish]

hi Rajdev; awesome,very nice code,many thanks. :)   :)