Granting Permissions

Hi
I want allow as well as deny certain users from accessing certain pages in my project....how can i do it??? is thr any in built function tht i can make use of??? or i will have to hard code it??? Plz help me out

ASP.net: http://www.google.com/search?q=asp.net+authorization
General C#: http://www.google.com/search?hl=en&q...on&btnG=Search

Hi axion_sa
Thank you very much for th help......is thr any other way other than those given in th msdn???? Any other possibilities to grant/deny access???