C#TreeView读取Xml，TreeView导出到Xml

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Xml;
using System.Collections;
using System.IO;
 
namespace TreeLoadXml
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        XmlDocument doc = new XmlDocument();
        StringBuilder sb = new StringBuilder();
        //XML每行的内容
        private string xmlLine = "";
        //加载
        private void Form1_Load(object sender, EventArgs e)
        {
            doc.Load("TreeXml.xml"); //我是把xml放到debug里面了.你的路径就随便啦.不过这样方便一些.
            RecursionTreeControl(doc.DocumentElement, treeView1.Nodes);//将加载完成的XML文件显示在TreeView控件中
            treeView1.ExpandAll();//展开TreeView控件中的所有项
        }
        /// <summary>
        /// RecursionTreeControl:表示将XML文件的内容显示在TreeView控件中
        /// </summary>
        /// <param name="xmlNode">将要加载的XML文件中的节点元素</param>
        /// <param name="nodes">将要加载的XML文件中的节点集合</param>
        private void RecursionTreeControl(XmlNode xmlNode, TreeNodeCollection nodes)
        {
            foreach (XmlNode node in xmlNode.ChildNodes)//循环遍历当前元素的子元素集合
            {
                TreeNode new_child = new TreeNode();//定义一个TreeNode节点对象
                new_child.Name = node.Attributes["Name"].Value;
                new_child.Text = node.Attributes["Text"].Value;
                nodes.Add(new_child);//向当前TreeNodeCollection集合中添加当前节点
                RecursionTreeControl(node, new_child.Nodes);//调用本方法进行递归
            }
        }
        //双击时修改
        private void treeView1_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                Point ClickPoint = new Point(e.X, e.Y);
                TreeNode CurrentNode = treeView1.GetNodeAt(ClickPoint);
                if (CurrentNode != null)//判断你点的是不是一个节点
                {
                    treeView1.SelectedNode = CurrentNode;//选中这个节点
                    treeView1.LabelEdit = true;
                    treeView1.SelectedNode.BeginEdit();
                }
            }
        }
 
        //递归遍历节点内容,最关键的函数
        private void parseNode(TreeNode tn, StringBuilder sb)
        {
            IEnumerator ie = tn.Nodes.GetEnumerator();
 
            while (ie.MoveNext())
            {
                TreeNode ctn = (TreeNode)ie.Current;
                xmlLine = GetRSSText(ctn);
                sb.Append(xmlLine);
                //如果还有子节点则继续遍历
                if (ctn.Nodes.Count > 0)
                {
                    parseNode(ctn, sb);
                }
                sb.Append("</Node>");
            }
 
 
        }
        //成生RSS节点的XML文本行
        private string GetRSSText(TreeNode node)
        {
            //根据Node属性生成XML文本
            string rssText = "<Node Name=\"" + node.Name + "\" Text=\"" + node.Text + "\" >";
 
            return rssText;
        }
 
        //添加节点
        private void addTreeNode_Click(object sender, EventArgs e)
        {
            try
            {
                treeView1.SelectedNode.Nodes.Add("新建子节点");
                toolStripStatusLabel1.Text = "新建子节点";
            }
            catch (Exception ex)
            {
                toolStripStatusLabel1.Text = ex.Message;
            }
        }
        //删除节点
        private void deleteTreeNode_Click(object sender, EventArgs e)
        {
            try
            {
                treeView1.SelectedNode.Remove();
            }
            catch (Exception ex)
            {
 
                toolStripStatusLabel1.Text = ex.Message;
            }
        }
 
        private void addRootTreeNode_Click(object sender, EventArgs e)
        {
            try
            {
                treeView1.Nodes.Add("新建根节点");
                toolStripStatusLabel1.Text = "新建根节点成功";
            }
            catch (Exception ex)
            {
                toolStripStatusLabel1.Text = ex.Message;
            }
        }
        //保存
        private void SaveXml_Click(object sender, EventArgs e)
        {
            try
            {
 
                //写文件头部内容
                //下面是生成RSS的OPML文件
                sb.Append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
                sb.Append("<Tree>");
 
                //遍历根节点
                foreach (TreeNode node in treeView1.Nodes)
                {
                    xmlLine = GetRSSText(node);
                    sb.Append(xmlLine);
 
                    //递归遍历节点
                    parseNode(node, sb);
 
                    sb.Append("</Node>");
                }
                sb.Append("</Tree>");
 
                StreamWriter sr = new StreamWriter("TreeXml.xml", false, System.Text.Encoding.UTF8);
                sr.Write(sb.ToString());
                sr.Close();
                toolStripStatusLabel1.Text = "保存成功";
            }
            catch (Exception ex)
            {
                toolStripStatusLabel1.Text = ex.Message;
            }
        }
    }
}

记一下 转载:https://www.cnblogs.com/vaevvaev/p/7211265.html