C#动态实现网页控件自定义添加

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

namespace Otitan.Web.ForestSuperviseManage.InfoManageNew.InfoEditNew
{
    
    /// <summary>
    /// 作者：肖伟
    /// 勘验、检查笔录动态添加页面
    /// </summary>
    public partial class Kyjcbl_Add : System.Web.UI.Page
    {
        BLL.BUSI_LYXZ_NKY_DSR b_dsr = new Otitan.BLL.BUSI_LYXZ_NKY_DSR();//当事人
        BLL.BUSI_LYXZ_NKY_JCRY b_jcry = new Otitan.BLL.BUSI_LYXZ_NKY_JCRY();//勘验检查人员
        BLL.BUSI_LYXZ_NKY_JLRY b_jlry = new Otitan.BLL.BUSI_LYXZ_NKY_JLRY();//记录人员
        BLL.BUSI_LYXZ_NKY_JZR b_jzr = new Otitan.BLL.BUSI_LYXZ_NKY_JZR();//见证人
        BLL.BUSI_LYXZ_NKYJCBL b_nkyjcbl = new Otitan.BLL.BUSI_LYXZ_NKYJCBL();//勘验、检查笔录

        Model.BUSI_LYXZ_NKY_DSR m_dsr = new Otitan.Model.BUSI_LYXZ_NKY_DSR();//当事人
        Model.BUSI_LYXZ_NKY_JCRY m_jcry = new Otitan.Model.BUSI_LYXZ_NKY_JCRY();//勘验检查人员
        Model.BUSI_LYXZ_NKY_JLRY m_jlry = new Otitan.Model.BUSI_LYXZ_NKY_JLRY();//记录人员
        Model.BUSI_LYXZ_NKY_JZR m_jzr = new Otitan.Model.BUSI_LYXZ_NKY_JZR();//见证人
        Model.BUSI_LYXZ_NKYJCBL m_nkyjcbl = new Otitan.Model.BUSI_LYXZ_NKYJCBL();//勘验、检查笔录
        /// <summary>
        /// 程序加载
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void Page_Load(object sender, EventArgs e)
        {

            if (!IsPostBack)
            {
                
                if (Request["ID"] != null)
                {
                    ViewState["DataFieldCount_JCRY"] = 0;
                    ViewState["DataFieldCount_JLRY"] = 0;
                    ViewState["DataFieldCount_DSR"] = 0;
                    ViewState["DataFieldCount_JZR"] = 0;
                    string ID = Request["ID"].ToString();
                    ViewState["ID"] = ID;
                }
                /*
                //调试时候用的参数
                ViewState["DataFieldCount_JCRY"] = 0;
                ViewState["DataFieldCount_JLRY"] = 0;
                ViewState["DataFieldCount_DSR"] = 0;