I set timer to referesh RadGrid. On the page also has RadAjaxManager and RadAjaxLoadPanel. After few reloadings occured, then I get the error message below.
May I have a clue?
Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled.
Details: Error parsing near 'Telerik.Web.UI 2009.'.