private void login_Click(object sender, RoutedEventArgs e) { string name = username.Text; string passwd = password.Password; IEmployeeDao dao = new EmployeeDao(); Employee employee = dao.getEmployeeWithPasswd(name, passwd); if (employee == null) { MessageBox.Show("账号名或密码不正确"); return; } string identity = employee.Identity; if (identity == "经理") { MainManager manager = new MainManager(employee); manager.Show(); } else if (identity == "采购员") { BuyerWindow buyer = new BuyerWindow(employee); buyer.Show(); } else if (identity == "收银员") { SellerWindow sell = new SellerWindow(employee); sell.Show(); } else if (identity == "移货员") { MoverWindow mover = new MoverWindow(employee); mover.Show(); } this.Close(); }