private DataSet load_data_2_ds_v_dm_nv() { US_DUNG_CHUNG v_us = new US_DUNG_CHUNG(); DataSet v_ds = new DataSet(); v_ds.Tables.Add(new DataTable()); v_us.FillDatasetWithTableName(v_ds, "V_DM_NHAN_VIEN"); return v_ds; }