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();  }