private void LoadComboxPhong()
{
//phong
cbPhong.DataSource = quanLy.ArrPhong();
cbPhong.DisplayMember = "t_phong";
cbPhong.ValueMember = "id_phong";
}
private void LoadCombox()
{
//load danh sách phòng
quanLy = new QuanLyController();
cbPhong.DataSource = quanLy.ArrPhong();
cbPhong.DisplayMember = "t_phong";
cbPhong.ValueMember = "id_phong";
//load danh sach chức vụ
cbQuyen.Items.Add("Nhân viên");
cbQuyen.Items.Add("Kế toán");
cbQuyen.Items.Add("Quản lý");
}