²Ù×÷XML£¬¶ÔXMLµÄÔöɾ¸Ä²é²Ù×÷¡£asp.net C#

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;
namespace jiufen.Web.code
{
public class OperatingXML
{
XmlDocument xmlDoc = new XmlDocument();
//load xml file
private void LoadXml()
{
xmlDoc = new XmlDocument();
xmlDoc.Load(HttpContext.Current.Server.MapPath("xml/User.xml"));//xmlµÄ¸ùĿ¼
}
//Ìí¼Ó½Úµã
public void AddElement()
{
LoadXml();

XmlNode xmldocSelect = xmlDoc.SelectSingleNode("user");
XmlElement el = xmlDoc.CreateElement("person"); //Ìí¼Óperson½Úµã
el.SetAttribute("name", "ÖܽÜÂ×"); //Ìí¼Óperson½ÚµãµÄÊôÐÔ"name"
el.SetAttribute("sex", "ÄÐ"); //Ìí¼Óperson½ÚµãµÄÊôÐÔ "sex"
el.SetAttribute("age", "52"); //Ìí¼Óperson½ÚµãµÄÊôÐÔ "age"
XmlElement xesub1 = xmlDoc.CreateElement("pass"); //Ìí¼Óperson½ÚµãµÄÀïµÄ½Úµã
xesub1.InnerText = "22";//ÉèÖÃÎı¾½Úµã
el.AppendChild(xesub1);
XmlElement xesub2 = xmlDoc.CreateElement("Address");
xesub2.InnerText = "À¥Ã÷";//ÉèÖÃÎı¾½Úµã
el.AppendChild(xesub2);
xmldocSelect.AppendChild(el);
xmlDoc.Save(HttpContext.Current.Server.MapPath("xml/User.xml"));
}
//Ð޸Ľڵã
public void UpdateElement()
{
LoadXml();
XmlNodeList nodeList = xmlDoc.SelectSingleNode("user").ChildNodes;//»ñÈ¡bookstore½ÚµãµÄËùÓÐ×Ó½Úµã
foreach (XmlNode xn in nodeList)//±éÀúËùÓÐ×Ó½Úµã
{
XmlElement xe = (XmlElement)xn;//½«×Ó½ÚµãÀàÐÍת»»ÎªXmlElementÀàÐÍ
if (xe.GetAttribute("name") == "ÖܽÜÂ×")//Èç¹ûnameÊôÐÔÖ