public void LoadData() { try { QLHS_BUS bus = new QLHS_BUS(); DataTable dt = bus.LayTatCaMonHoc(); dtgv_danhsachmonhoc.DataSource = dt; if (dt.Rows.Count > 0) { dtgv_danhsachmonhoc.Rows[0].Selected = true; RowSelected = new QLHS_DTO(); RowSelected.MaHocSinh = dtgv_danhsachmonhoc.SelectedRows[0].Cells["MaMonHoc"].Value.ToString(); RowSelected.HoTen = dtgv_danhsachmonhoc.SelectedRows[0].Cells["TenMonHoc"].Value.ToString(); } } catch (Exception ex) { } }