Hi Jun,
Thanks for your inputs. I was checking for the paging concepts and found below link, which say its applies to Web Dynpro Java, SAP NetWeaver 04, 7.0, 7.01, CE 7.10, CE 7.11 EhP1.
URL:- http://scn.sap.com/docs/DOC-2702
Currently I am using 7.3 CE portal version, so i am not sure if the above can be apply here. Do you have an idea of it?
Regards,
Pankaj