private bool check_ct_dang_su_dung(decimal ip_id_don_vi)
{
US_GD_CONG_TAC v_us_ct = new US_GD_CONG_TAC();
DS_GD_CONG_TAC v_ds_ct = new DS_GD_CONG_TAC();
v_us_ct.FillDataset(v_ds_ct, "where id_don_vi = " + ip_id_don_vi);
if (v_ds_ct.Tables[0].Rows.Count == 0)
{
return false;
}
else return true;
}