private void load_data_to_sle_nhom_ld() { US_CM_DM_TU_DIEN v_us = new US_CM_DM_TU_DIEN(); DS_CM_DM_TU_DIEN v_ds = new DS_CM_DM_TU_DIEN(); v_us.FillDatasetByIdLoaiTuDien(v_ds, 18); m_sle_nhom_ld.Properties.DataSource = v_ds.Tables[0]; }