protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { int DemandID = Convert.ToInt32(Request["o"]); SolutionDemandModel model = new SolutionDemandBll().GetModel(DemandID); if (model != null) { orderid.InnerText = DemandID.ToString(); } else { throw new Exception("订单ID不存在"); } } }