c# 应用事务

                   using (TransactionScope tr = new TransactionScope())
                    {
                        int i = this.deskmanager.addOpenDesk(account_c);
                        int j = this.deskmanager.updateDeskStatus(account_c.AccountC_desk, "有客");
                        if (i > 0 && j > 0)
                        {
                            tr.Complete();
                           
                           
                         

                        }
                        else
                        {
                            MessageBox.Show("开桌未成功，与管理员联系!");
                            this.btnkz.Enabled = false;
                            this.btndc.Enabled = false;
                            this.btnchange.Enabled = false;
                            this.button3.Enabled = false;
                      }
                        tr.Dispose();
                    }