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");
                }
            }
        }