递归XML加载WinForm Treeview（原创）

<?xml version="1.0" encoding="utf-8" ?>
<root name="rootNode" text="根节点">
  <node name="node1"  text="节点1">
    <childNode name="childNode1" text="子节点1">
      <grandchild name="grandchild1" text="子子节点1"></grandchild>
      <grandchild name="grandchild2" text="子子节点2"></grandchild>
      <grandchild name="grandchild3" text="子子节点3"></grandchild>
      <grandchild name="grandchild4" text="子子节点4"></grandchild>
    </childNode>
    <childNode name="childNode1" text="子节点1"></childNode>
    <childNode name="childNode2" text="子节点2"></childNode>
  </node>
  <node name="node2"  text="节点2">
    <childNode name="childNode1" text="子节点1"></childNode>
    <childNode name="childNode2" text="子节点2"></childNode>
    <childNode name="childNode3" text="子节点3"></childNode>
  </node>
  <node name="node3"  text="节点3">
    <childNode name="childNode1" text="子节点1"></childNode>
    <childNode name="childNode2" text="子节点2"></childNode>
    <childNode name="childNode3" text="子节点3"></childNode>
  </node>
  <node name="node4"  text="节点4">
    <childNode name="childNode1" text="子节点1"></childNode>
    <childNode name="childNode2" text="子节点2"></childNode>
    <childNode name="childNode3" text="子节点3"></childNode>
  </node>
</root>

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Xml;

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

            XmlDocument doc = new XmlDocument();

            try
            {
                string path = AppDomain.CurrentDomain.BaseDirectory + "XMLFile1.xml";
                doc.Load(path);
                treeView1.BeginUpdate();
                XmlElement xe = (XmlElement)doc.SelectSingleNode("root");
                TreeNode root = new TreeNode();
                root.Name = xe.GetAttribute("name");
                root.Text = xe.GetAttribute("text");
                root = GetChildNodes(xe, root);
                treeView1.Nodes.Add(root);
                treeView1.EndUpdate();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }
        }

        public TreeNode GetChildNodes(XmlElement xe, TreeNode upNode)
        {
            if (xe.HasChildNodes)
            {
                foreach (XmlNode node in xe.ChildNodes)
                {
                    XmlElement xlt = (XmlElement)node;
                    TreeNode tn = new TreeNode();
                    tn.Text = xlt.GetAttribute("text");
                    tn.Name = xlt.GetAttribute("name");
                    GetChildNodes(xlt, tn);
                    upNode.Nodes.Add(tn);
                }
            }
            return upNode;
        }
    }
}