I have converted my web application from 3.5 to 4.0. I have been getting the issue on update panel post back method. I have linkbutton and textboxes inside the same update panel, when clicking on linkbutton for fill the values system throw below JS error.
Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET CLR 1.1.4322; .NET4.0C; .NET4.0E) Timestamp: Thu, 5 Aug 2010 15:12:05 UTC
Message: Object doesn't support this property or method Line: 416 Char: 1 Code: 0 URI: http://sandbox.sitters.com/ScriptResource.axd?d=yIeIveNSIovIHEMZHoL7xnSA7yz8Oq2kjqMmaZ6_5G_YTaj7tV0DfcI2dxh1Bg6iJAZ8d1ATJwb0KFlZa_StIw2&t=487a7f9a
Please let me know if any one faced the same issue.
thanks
Object doesn't support this property or method
is typically a JavaScript exception. - Rabid