private DataTable get_lns_het_han() { US_GD_HE_SO_LNS v_us_gd_he_so_lns = new US_GD_HE_SO_LNS(); DataSet v_ds = v_us_gd_he_so_lns.LayDanhSachHetHanLNSTrongThang(); return v_ds.Tables[0]; }