XML 增删查改

直接贴代码

using  System;
using  System.Data;
using  System.Configuration;
using  System.Web;
using  System.Xml;

namespace  Myshop.MyShop
{
     public   class  XMLEditor
    {
         ///   <summary>
         ///  删除节点
         ///   </summary>
         ///   <param name="xmlPath"></param>
         ///   <param name="id"></param>
         ///   <returns></returns>
         public   static   bool  DeleteNode( string  xmlPath,  string  id)
        {
            XmlDocument xml  =   new  XmlDocument();             // 新建xml文档
            xml.Load(xmlPath);                               // 载入文件
            XmlNode root  =  xml.SelectSingleNode( " root " );     // 获取根节点    
            XmlNode doc  =   null ;                              // 定义节点
            GetXmlDoc(root, id,  ref  doc);                    // 获取要处理的节点
             if  (doc  !=   null )
            {
                doc.ParentNode.RemoveChild(doc);             // 删除自己
                xml.Save(xmlPath);                           // 保存
                 return   true ;
            }
             else
                 return   false ;
        }

         ///   <summary>
         ///  添加新节点
         ///   </summary>
         ///   <param name="xmlPath"></param>
         ///   <param name="level"></param>
         ///   <param name="fatherid"></param>
         ///   <param name="name"></param>
         ///   <returns></returns>
         public   static   bool  AddNode( string  xmlPath,  string  level,  string  fatherid,  string  name)
        {
            XmlDocument xml  =   new  XmlDocument();
            xml.Load(xmlPath);
            XmlNode root  =  xml.SelectSingleNode( " root " );
            XmlElement element  =  xml.CreateElement( " type " );          // 新建节点
            element.SetAttribute( " name " , name);                      // 添加标签
            element.SetAttribute( " level " , level);                   
            element.SetAttribute( " fatherid " , fatherid);
            XmlNode doc  =   null ;
            GetXmlDoc(root, fatherid, ref  doc);
             if  (doc  !=   null )
            {
                doc.AppendChild(element  as  XmlNode);                 // 添加child
                xml.Save(xmlPath);
                 return   true ;
            }
             else
                 return   false ;            
        }

         ///   <summary>
         ///  编辑节点
         ///   </summary>
         ///   <param name="xmlPath"></param>
         ///   <param name="id"></param>
         ///   <param name="level"></param>
         ///   <param name="fatherid"></param>
         ///   <param name="name"></param>
         ///   <returns></returns>
         public   static   bool  EditNode( string  xmlPath,  string  id,  string  level,  string  fatherid,  string  name)
        {
            XmlDocument xml  =   new  XmlDocument();
            xml.Load(xmlPath);
            XmlNode root  =  xml.SelectSingleNode( " root " );
            XmlNode doc = null ;
            GetXmlDoc(root, fatherid, ref  doc);
             if  (doc  !=   null )
            {
                XmlElement element  =  doc  as  XmlElement;              // XmlNode转XmlElement更新
                element.SetAttribute( " id " , id);
                element.SetAttribute( " name " , name);
                element.SetAttribute( " level " , level);
                element.SetAttribute( " fatherid " , fatherid);
                xml.Save(xmlPath);
                 return   true ;
            }
             else
                 return   false ;
        }

         ///   <summary>
         ///  递归查找节点
         ///   </summary>
         ///   <param name="node"> 起始节点 </param>
         ///   <param name="id"> attr </param>
         private   static   void  GetXmlDoc(XmlNode node, string  id, ref  XmlNode myNode)
        {
             foreach  (XmlNode xml  in  node.ChildNodes)
            {
                 if  (xml.Attributes[ " id " ].Value  ==  id)
                    myNode  =  xml;
                 else
                    GetXmlDoc(xml, id,  ref  myNode);
            }
        }
    }
}

Code
<!--XML文件-->
<root>
  <type id="1" name="aa" level="1" fatherid="0">
    <type id="2" name="bb" level="2" fatherid="1">
    </type>
    <type id="4" name="ccc" level="2" fatherid="1" />
    <type id="9" name="sss" level="2" fatherid="1" />
  </type>
  <type id="3" name="cc" level="1" fatherid="0">
  </type>
</root>