BKI_DichVuMatDat.NghiepVu.f360_quan_ly_quyet_dinh.check_ma_qd C# (CSharp) Method

        private bool check_ma_qd()
        {
            DS_GD_QUYET_DINH v_ds = new DS_GD_QUYET_DINH();
            US_GD_QUYET_DINH v_us = new US_GD_QUYET_DINH();

            v_us.FillDataset(v_ds);

            string v_str_filter = "";
            v_str_filter = "MA_QUYET_DINH = '" + m_txt_ma_qd.Text + "'";

            DataRow[] v_dr = v_ds.GD_QUYET_DINH.Select(v_str_filter);

            if (v_dr.Count() != 0)
            {
                m_txt_ma_qd.BackColor = Color.Bisque;
                m_lbl_kiem_tra_ma_qd.Visible = true;
                m_lbl_kiem_tra_ma_qd.Text = "Đã có mã này rồi...";
                return true;
            }
            else
            {
                m_txt_ma_qd.BackColor = Color.White;
                m_lbl_kiem_tra_ma_qd.Visible = false;
                return false;
            }
        }