Issue occcurred in various versions up to 2009.3.1407.35.
Just FYI to those out there that might experience the same issue. The issue was traced down to a few bad data value.
I have a CLOB that stores the value from RadEditor which could contain HTML, for some reason for the 2 records that is causing Sys.WebForms.PageRequestManagerParserErrorException, it seems to have some kind of control character.
When loading via RadGrid the page would fail to load (other pages are fine).
After I removed the invalid character then it loaded fine.
I have AjaxMgr on RadGrid, no update panels anywhere.
I don't know if this is more of an issue with RadEditor storing invalid character or unable to reload it back to RadGrid.
Just FYI to those out there that might experience the same issue. The issue was traced down to a few bad data value.
I have a CLOB that stores the value from RadEditor which could contain HTML, for some reason for the 2 records that is causing Sys.WebForms.PageRequestManagerParserErrorException, it seems to have some kind of control character.
When loading via RadGrid the page would fail to load (other pages are fine).
After I removed the invalid character then it loaded fine.
I have AjaxMgr on RadGrid, no update panels anywhere.
I don't know if this is more of an issue with RadEditor storing invalid character or unable to reload it back to RadGrid.