private void btnSuaCTHD_Click(object sender, EventArgs e) { try { int tt = (int.Parse(txtThanhTien.Text)); DTO_CTHD cthd = new DTO_CTHD(int.Parse(txtMaHD.Text), int.Parse(cboTSP.SelectedValue.ToString()), int.Parse(num_SL.Value.ToString()), int.Parse(txtGiaBan.Text), tt); bshd.UpdateCTHD(cthd); XtraMessageBox.Show("Sửa thành công."); gdvCTHD.DataSource = bshd.getCTHD(int.Parse(txtMaHD.Text)); } catch { XtraMessageBox.Show("Sửa thất bại."); } }