Literal绑定数据

前台：

<asp:Literal ID = "ChiCunShow" runat = "server"></asp:Literal>

后台：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using DataEntity;
using System.Data;
using BRules;

public partial class Manager_CYzhushou_new : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
           MsgShow.Text= TradeBin();//行业主键ID=876。餐饮服务，电商服务，电子商品附ID为876
           ChiCunShow.Text = ChiCun();//尺寸主键ID=880。具体尺寸(例：100*100)附ID为876
        }
    }

    public string TradeVal = System.Configuration.ConfigurationManager.AppSettings["TradeVal"].ToString();
    public string ChiCunVal = System.Configuration.ConfigurationManager.AppSettings["ChiCunVal"].ToString();
    /// <summary>
    /// 绑定行业
    /// </summary>
    /// <param name="parentid"></param>
    /// <returns></returns>
    public string TradeBin(int parentid)
    {

        string Returnstr = "";
        Tinfodict sTinfodict = TinfodictRules.getonebypk(parentid);
        DataTable table = TinfodictRules.getonebyparentid(int.Parse(TradeVal));
        foreach (DataRow row in table.Rows)
        {

            Returnstr += "<li> <a href='#'>" + row["dictname"].ToString() + "</a></li>";//拼接li绑定到Literal

        }
        return Returnstr;
    }
    /// <summary>
    /// 绑定尺寸
    /// </summary>
    /// <param name="ChiCunID"></param>
    /// <returns></returns>
    public string ChiCun(int ChiCunID)
    {
        string returnstr = "";
        Tinfodict sTinfodict = TinfodictRules.getonebypk(ChiCunID);
        DataTable tab = TinfodictRules.getonebyparentid(int.Parse(ChiCunVal));
        foreach(DataRow crow in tab.Rows)
        {
            returnstr += "<li> <a href='#'>" + crow["dictname"].ToString() + "</a></li>";//拼接li绑定到Literal
        }
        return returnstr;
    }
}

web.config配置

<configuration>
  <appSettings>
    <!--<add key="excel" value="E:\项目\派瑞威行\新建文件夹\gdt_helper\webhelper\Excel\"/>-->
    <add key="excel" value="G:/Perry/webhelper/Excel"/>
    <add key="mailName" value="[e-mail]"/>
    <add key="mailShowName" value="[e-mail]"/>
    <add key="mailPwd" value="zhang564335"/>
    <!--媒体ID-->
    <add key="MediaVal" value=""/>
    <!--行业ID-->
    <add key="TradeVal" value="" />
    <!--尺寸-->
    <add key="ChiCunVal" value="" />
    <!--客户ID-->
    <add key="CustVal" value=""/>
  </appSettings>
    <connectionStrings>