private void load_data_2_grid() { US_DM_MON_HOC v_us = new US_DM_MON_HOC();//Khai báo US //DataSet v_ds = new DataSet(); m_ds.Clear(); DataTable v_dt = new DataTable(); m_ds.Tables.Add(v_dt); v_us.FillDatasetTheoMonHoc(m_ds, CIPConvert.ToDecimal(m_cbo_mon_hoc.SelectedValue)); m_grc.DataSource = m_ds.Tables[0]; }