ASP.NET操作XML

ASP.Net 對XML文件的讀寫,添加,修改,刪除操作
下面有代碼調試正確

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.XML;
private XMLDocument XMLDoc;

        //load XML file
        private void LoadXML()
        {
            XMLDoc=new XMLDocument();
            XMLDoc.Load(Server.MapPath("User.XML"));
        }

        //添加節點

            XMLNode XMLdoCSelect=XMLDoc.SelectSingleNode("user");
           
            XMLElement el=XMLDoc.CreateElement("person"); //添加person節點
            el.SetAttribute("name","風雲"); //添加person節點的屬性"name"
            el.SetAttribute("sex","女");   //添加person節點的屬性 "sex"
            el.SetAttribute("age","25");   //添加person節點的屬性 "age"
           
             XMLElement xesub1=XMLDoc.CreateElement("pass"); //添加person節點的裡的節點

xesub1.InnerText="123";//設置文本節點
   &nb