Fantastic and million thanks to you. It works fine. Regards R.Arockiapathinathan

I switched off enableviewstate in page level. But still getting viewstate hidden control. And in our website, we are getting error log, it gives the request url, it says ....aspx?__viewstate=/....... We never use postback option in all our pages. So how come this is possible? Is it any hack attack? Regards R.Arockiapathinathan

thanks for the reply. After moving the cs file into app_code folder, its working fine. Regards R.Arockiapathinathan