I meet about problem to pass arguments to the client-side event OnClientClicking.
I tried to use the String.Format () function, but it does
try OnClientClicking='<%# Eval("MeetingID", "confirmCallBackFn({0})") %>'
Change double quote to single quote from
OnClientClicking="<%#string.Format("confirmCallBackFn('{0}');",Eval("MeetingID")) %>"
to
OnClientClicking='<%#string.Format("confirmCallBackFn('{0}');",Eval("MeetingID")) %>'
Or remove your string.Format and use like this
OnClientClicking='<%# "confirmCallBackFn("+ Eval("MeetingID") + ");" %>'