Role « Authentication Authorization « ASP.NET Tutorial

21.14.1.Getting all the roles of a specific user
21.14.2.Enables the SqlRoleProvider.
21.14.3.Assigning a new user to a role.
21.14.4.Configuring the WindowsTokenRoleProvider
21.14.5.Displaying different content to members of the Windows Administrators group.
21.14.6.Displaying a user's roles.
21.14.7.Windows roles
21.14.8.Adding roles to the application
21.14.9.Looking up users in a particular role