private void btnSave_Click(object sender, EventArgs e) { DataSet ds = new DataSet(); try { ContractDTO obj = new ContractDTO(); obj.IDHouse = Convert.ToInt64((cboHouse.SelectedItem as clsComboItem).Value); obj.IDCustomer = Convert.ToInt64((cboCustomer.SelectedItem as clsComboItem).Value); obj.IDEmployee = Convert.ToInt64((cboEmployee.SelectedItem as clsComboItem).Value); ds = ContractDAO.Contract_InsUpd(obj); if (ds != null && ds.Tables.Count > 0 && ds.Tables[0].Rows.Count > 0 && Convert.ToInt32(ds.Tables[0].Rows[0]["Result"]) == 1) { clsMessages.ShowInformation("Thêm thành công!"); frmParent.LoadDataToForm(); this.Close(); } else { clsMessages.ShowWarning("Thêm thất bại!"); } } catch (Exception ex) { clsMessages.ShowErrorException(ex); } finally { ds.Dispose(); } }