Solution for Ajax Errors

Solution for Ajax Errors(http errors,bad request,invalid request errors etc)

<asp:ScriptManager ID="ScriptManager1" runat="server">

asp:ScriptManager>

<script type="text/javascript" language="javascript">

var divElem = 'AlertDiv';

var messageElem = 'AlertMessage';

var bodyTag = 'bodytag';

Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler);

function ToggleAlertDiv(visString)

{

if (visString == 'hidden')

{

$get(bodyTag).style.backgroundColor = 'white';

}

else

{

$get(bodyTag).style.backgroundColor = 'gray';

}

var adiv = $get(divElem);

adiv.style.visibility = visString;

}

function ClearErrorState() {

$get(messageElem).innerHTML = '';

ToggleAlertDiv('hidden');

}

function EndRequestHandler(sender, args)

{

if (args.get_error() != undefined)

{

var errorMessage;

if (args.get_response().get_statusCode() == '200')

{

errorMessage = args.get_error().message;

}

else

{

// Error occurred somewhere other than the server page.

errorMessage = 'An unspecified error occurred. ';

}

args.set_errorHandled(true);

ToggleAlertDiv('visible');

$get(messageElem).innerHTML = errorMessage;

}

}

script>

<div id="alertdiv" style="visibility: hidden">

<div id="alertmessage">

div>

<br />

<div id="alertbuttons">

<input id="okbutton" type="button" value="ok" runat="server" onclick="clearerrorstate()" />

div>

div>