public void DeleteRole(Role r)
 {
     _roleBL.Delete(r);
 }
 public void DeleteMembership(Membership ms)
 {
     _membershipBL.Delete(ms);
 }
 public void DeleteUser(User u)
 {
     _userBL.Delete(u);
 }
 public void DeleteUsersInRoles(UsersInRoles ur)
 {
     _UsersInRolesBL.Delete(ur);
 }