I have a drop down list inside the radgrid and the button outside the radgrid. Also I have asp.net update panel for making the cursor busy while processing. when I changed the drop down value in less than 2 drop down everything works fine and it update the gradgrid after processing complete. But when I change the 3 or more dropdown list value, I am getting error message like
Unhandled exception at line 15, column 16485 in http://localhost:85124/Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=RadScriptManager1_TSM&compress=1&_TSM_CombinedScriptsJavaScript runtime error: ....
Sys.WebForms.PageRequestManagerTimeoutException: The server request timed out. etc kind of error message.
Can you please provide suggestion how can I fixed this issue?
Thanks in advance