public ActionResult PatientDelete(int id, patient pat)
        {
            var UserName = pat.user_name;

            try
            {
                objPat.commitDelete(id);
                Roles.RemoveUserFromRole(UserName, "patient");
                Membership.DeleteUser(UserName);
                return(RedirectToAction("ListPatient"));
            }
            catch
            {
                return(View());
            }
        }