private void delete_gd_lcd(decimal v_id_hop_dong)
{
US_GD_LUONG_CHE_DO v_us = new US_GD_LUONG_CHE_DO();
DS_GD_LUONG_CHE_DO v_ds = new DS_GD_LUONG_CHE_DO();
v_us.FillDataset(v_ds, "where id_hop_dong = " + v_id_hop_dong);
for (int i = 0; i < v_ds.Tables[0].Rows.Count; i++)
{
decimal v_id_gd_lcd = Convert.ToDecimal(v_ds.Tables[0].Rows[i]["ID"]);
v_us = new US_GD_LUONG_CHE_DO(v_id_gd_lcd);
v_us.Delete();
}
}