have a couple of asp dropdowns, button named “View Results” and a
RadGrid inside an Update Panel. Upon button click I fire a sql query and
display the corresponding data in the RadGrid.
problem is sometimes when I click “View Results” button I get a dialog box with
error message “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 'span> </div> |<html>
RadGrid is not displayed.
I click the button again the error doesn’t show up and RadGrid is displayed.
This happens sometimes not every time.
anyone tell me how to figure this out?