asp.net xml 增删改操作

 user.xml
 <?xml version="1.0" encoding="utf-8"?>
 <user>
   <person>
   </person>
   <person name="风拉" sex="男" age="">
     <pass></pass>
     <Address>大明</Address>
   </person>
   <person name="风云" sex="女" age="">
     <pass></pass>
   </person>
   <person name="云" sex="女" age="">
     <pass></pass>
     <Address>松江区</Address>
   </person>
 </user>

 , private XmlDocument xmlDoc;

     //添加
     private void InsertElement()
     {

         XmlNode xmldocselect = xmlDoc.SelectSingleNode("user");
         XmlElement el = xmlDoc.CreateElement("person");
         el.SetAttribute("name", "风云");
         el.SetAttribute("sex", "女");
         el.SetAttribute("age", "");
         XmlElement xesub1 = xmlDoc.CreateElement("pass");
         xesub1.InnerText = "";
         el.AppendChild(xesub1);
         xmldocselect.AppendChild(el);
         XmlElement xx = xmlDoc.CreateElement("Address");
         xx.InnerText = "松江区";
         el.AppendChild(xx);
         xmlDoc.Save(Server.MapPath("user.xml"));
     }
     //修改
     private void UpdateElement()
     {
         LoadXml();
         XmlNodeList nodeList = xmlDoc.SelectSingleNode("user").ChildNodes;
         foreach (var item in nodeList)
         {
             XmlElement xe = (XmlElement)item;
             if (xe.GetAttribute("name") == "风云")
             {
                 xe.SetAttribute("name", "发明");

                 //如果下面有子节点在下走
                 XmlNodeList nls = xe.ChildNodes;//继续获取xe子节点的所有子节点
                 foreach (XmlNode xn1 in nls)//遍历
                 {
                     XmlElement xe2 = (XmlElement)xn1;//转换类型
                     if (xe2.Name == "pass")//如果找到
                     {
                         xe2.InnerText = "";//则修改
                         break;

                     }
                 }

                 break;
             }
         }
           xmlDoc.Save(Server.MapPath("user.xml"));//保存

     }

     //删除
     private void DeleteElement()
     {
         LoadXml();
         XmlNodeList nodeList = xmlDoc.SelectSingleNode("user").ChildNodes;
         foreach (var item in nodeList)
         {
             XmlElement xe = (XmlElement)item;
             if (xe.GetAttribute("name") == "发明")
             {
                 xe.RemoveAll();

                 ////如果下面有子节点在下走
                 //XmlNodeList nls = xe.ChildNodes;//继续获取xe子节点的所有子节点
                 //foreach (XmlNode xn1 in nls)//遍历
                 //{
                 //    XmlElement xe2 = (XmlElement)xn1;//转换类型
                 //    if (xe2.Name == "pass")//如果找到
                 //    {
                 //        xe2.InnerText = "66666";//则修改
                 //        break;

                 //    }
                 //}

                 break;
             }
         }
         xmlDoc.Save(Server.MapPath("user.xml"));//保存

     }

     //显示
     private void showIt()
     {
         LoadXml();
         XmlNode xn = xmlDoc.SelectSingleNode("user");
         XmlNodeList xnl = xn.ChildNodes;
         foreach (var item in xnl)
         {
             XmlElement xe=(XmlElement)item;
             Response.Write(xe.GetAttribute("name"));
         }
     }
     //查找xml
     private void LoadXml()
     {
         xmlDoc = new XmlDocument();
         xmlDoc.Load(Server.MapPath("User.xml"));
     }

 adminFunction.xml

 <?xml version="1.0" encoding="utf-8" ?>
 <functions>
   <function name="商品发布" url="~/page/leaves/leave.aspx">
     <subfunction name="添加商品" url="~/page/leaves/leave.aspx">
     </subfunction>
     <subfunction name="添加商品" url="~/page/leaves/leave.aspx">
     </subfunction>
   </function>
   <function name="留言发布" url="~/page/leaves/leave.aspx">
     <subfunction name="添加留言" url="~/page/leaves/leave.aspx">
     </subfunction>
     <subfunction name="修改留言" url="~/page/leaves/leave.aspx">
     </subfunction>
   </function>
 </functions>

     private void InitFunctions()
     {
         XmlDocument xmldoc = new XmlDocument();
         xmldoc.Load(Server.MapPath("adminFunction.xml"));
         XmlNode root = xmldoc.DocumentElement;
         tvFunction.Nodes.Add(CreateNode(root,new TreeNode()));
     }

     //递归
     /// <summary>
     ///
     /// </summary>
     /// <param name="node">根节点</param>
     /// <param name="tn">根节点对应的树节点</param>
     /// <returns></returns>
     private TreeNode CreateNode(XmlNode root, TreeNode tn)
     {

         foreach (XmlNode node in root.ChildNodes)
         {
             XmlElement subxmlEmt = node as XmlElement;
             string subname = subxmlEmt.GetAttribute("name");
             string suburl = subxmlEmt.GetAttribute("url");
             TreeNode subtn = new TreeNode();
             subtn.Text = subname;
             subtn.NavigateUrl = suburl;
             if (node.HasChildNodes)
             {
                 subtn.ChildNodes.Add(CreateNode(node, subtn));
             }
             tn.ChildNodes.Add(subtn);
         }
         return tn;

     }

     //读实例
     private void ReadEx()
     {
         string path1 = Server.MapPath("TextFile.txt");
         if (File.Exists(path1))
         {
             StreamReader reader = new StreamReader(path1, System.Text.Encoding.GetEncoding("gb2312"));

                 string str = reader.ReadToEnd();
                 Response.Write((str));
                 reader.Close();
         }

         WriteFile(path1,"vvvvv");
     }
     //写文件
     /// </summary>
     /// <param name="Path">文件路径</param>
     /// <param name="Strings">文件内容</param>
     public static void WriteFile(string Path, string Strings)
     {

         if (!System.IO.File.Exists(Path))
         {
             System.IO.FileStream f = System.IO.File.Create(Path);
             f.Close();
         }
         System.IO.StreamWriter f2 = new System.IO.StreamWriter(Path, false, System.Text.Encoding.GetEncoding("gb2312"));
         f2.Write(Strings);
         f2.Close();
         f2.Dispose();
     }