public void ChangeMyPassword(LoginToken <AirlineCompany> token, string oldPassword, string newPassword) { if (UserIsValid(token)) { if (token.User.Password == oldPassword) { token.User.Password = newPassword; _airlineDAO = new AirlineDAOMSSQL(); _airlineDAO.Update(token.User); } else { throw new WrongPasswordException("Your Password Old, Please write new Password"); } } }