居委会试题（解析xml文件）

xml文件

<?xml version="1.0" encoding="utf-8" ?>
<root name="石牌街道">
  <juwei name="瑞华居委">
    <jianzhu smid="6" name="瑞华花园1栋">
      <fjname>101室</fjname>
      <fjname>102室</fjname>
    </jianzhu>
    <jianzhu smid="7" name="瑞华花园2栋">
      <fjname>101室</fjname>
      <fjname>102室</fjname>
    </jianzhu>
  </juwei>
  <juwei name="金帝居委">
    <jianzhu smid="4" name="金帝花园1栋">
      <fjname>101室</fjname>
      <fjname>102室</fjname>
    </jianzhu>
  </juwei>
  <juwei name="朝阳居委">
    <jianzhu smid="5" name="朝阳花园1栋">
      <fjname>101室</fjname>
      <fjname>102室</fjname>
    </jianzhu>
  </juwei>
</root>

解析xml

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

namespace 居委会
{
    public partial class Main : Form
    {
        public Main()
        {
            InitializeComponent();
        }
        public void Show()
        {
          
            XmlDocument XmlDoc = new XmlDocument();
            //读取相对路径下的xml文件
            XmlDoc.Load("Address.xml");
            //获取根节点
            XmlNode xmlnode = XmlDoc.DocumentElement;
            //创建一个树节点
            TreeNode JieDaoNodes = new TreeNode();
            //将xml根节点的name值储存到树节点的text
           JieDaoNodes.Text = xmlnode.Attributes["name"].InnerText;
            //将jiedaoNodes树节点绑定到treeView1的根节点
            treeView1.Nodes.Add(JieDaoNodes);
            //声明一个树节点
            TreeNode juweiNodes = null; 
            
           
            foreach (XmlNode juwei in xmlnode.ChildNodes)
            {
                //初始化树节点
                juweiNodes = new TreeNode();
                
                //将juwei的name值保存到juweiNodes树节点的text
                juweiNodes.Text = juwei.Attributes["name"].InnerText;
                TreeNode DongNodes = null;
                foreach (XmlNode Dong in juwei.ChildNodes)
                {
                    //初始化树节点
                    DongNodes = new TreeNode ();
                    //将Dong的name值保存到DongNodes树节点的text
                    DongNodes.Text = Dong.Attributes["name"].InnerText; ;
                    TreeNode HaoNodes = null;
                    foreach (XmlNode Hao in Dong.ChildNodes)
                    {
                        //初始化树节点
                        HaoNodes = new TreeNode();
                        //将获取到Hao中的值保存到HaoNodes树节点的text
                        HaoNodes.Text = Hao.InnerText;
                        //HaoNodes树节点绑定到DongNodes的子节点
                        DongNodes.Nodes.Add(HaoNodes);
                    }
                    //将DongNodes树节点绑定到JuWeiNodes的子节点
                    juweiNodes.Nodes.Add(DongNodes);
                }

                

                //将juweiNodes树节点绑定到JieDaoNodes的子节点
                JieDaoNodes.Nodes.Add(juweiNodes);
            }
        }

        private void Main_Load(object sender, EventArgs e)
        {
            Show();
        }

        private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
        {
            //获取选中的节点
            TreeNode node=treeView1.SelectedNode;

            if (node==null)
            {
                return;
            }
            //只能选取深度为3的节点
            if (node.Level!=3)
            {
                return;
            }
            //获取深度为0的节点的text
            this.txtStreet.Text = treeView1.Nodes[0].Text;
            //获取所选节点的父节点的父节点的text
            this.txtJuWei.Text = node.Parent.Parent.Text;
            //获取所选节点的父节点的text
            this.txtBudingNO.Text = node.Parent.Text;
            //获取所选节点的text
            this.txtRoomNO.Text = node.Text;
        }
    }
}