while hitting ESC key twice
when on a page containing an update panel
with a any control inside, say textbox or listbox im getting a System.ArgumentException: Invalid postback or callback argument
. I have checked in remaining browsers its working fine but in Internet Explorer 8
its creating above said problem.
The possible solution i found, is making EnableEventValidation="false either at page level or webconfig or disabling escape key
. i dont want to go with 2 former solutions as either my site security will compromise and i dont want my escape key to disable as im using modal popup in page to hide.
Moreover im interested in why such weird behavior is happening.
Any Suggestions/Ideas appreciated.