private bool CheckRoleByUser(User loginUser, TipKorsnika tipKorsnika)
        {
            using (DBBL Baza = new DBBL())
            {

                Role r = Baza.usp_GetRoleByUserID(loginUser.UserID);
                if (r.RoleID == (int)tipKorsnika)
                    return true;
                return false;
            }
        }
 public Autorizacija(TipKorsnika tip = TipKorsnika.User)
 {
     this.Tip = tip;
 }