public void LoadBanAn()
{
BanHang.Model.Load load = new Model.Load();
DataTable dt = load.LoadBanAn();
comboTree1.DataSource = dt;
comboTree1.ValueMember = "MaBan";
}
public DataTable LoadListBanAnTheoKhuVuc(int MaKhuVuc)
{
BanHang.Model.Load load = new BanHang.Model.Load();
return load.LoadBanAn(MaKhuVuc);
}