private void us_object2grid(US_V_GD_DON_DAT_HANG i_us
     , int i_grid_row)
 {
     DataRow v_dr = (DataRow)m_fg_don_dat_hang.Rows[i_grid_row].UserData;
     i_us.Me2DataRow(v_dr);
     m_obj_trans.DataRow2GridRow(v_dr, i_grid_row);
 }