使用TreeView的另一種實現

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

namespace TestTreeView
{
    public partial class Form1 : Form
    {
        public Form1()
        {
           
            InitializeComponent();
            treeView1.ImageList = imageList1;
          
        }
        //Nodes[0].Nodes[0],第一個Nodes[0]表示根節點，下一個Nodes[0]表爲其子節點，數字0爲節點的Index
        private void button1_Click(object sender, EventArgs e)
        {
            TreeNode tn = new TreeNode();
            tn.Text = "根節點";
            tn.ImageIndex = 0;
            tn.SelectedImageIndex = 0;
            treeView1.Nodes.Add((TreeNode)tn.Clone());   //添加根節點

            //treeView1.Nodes[0]表示爲根節點,0表示爲第一個根節點
            tn.Text = "根節點子節點0";
            tn.ImageIndex = 1;
            tn.SelectedImageIndex = 1;
            treeView1.Nodes[0].Nodes.Add((TreeNode)tn.Clone());    //在根節點下添加子節點

            //treeView1.Nodes[0].Nodes[0] 表示在根節點的子節點
            tn.Text = "子節點0的子節點";
            tn.ImageIndex = 1;
            tn.SelectedImageIndex = 1;
            treeView1.Nodes[0].Nodes[0].Nodes.Add((TreeNode)tn.Clone());  //在子節點下添加子節點
        }

    }
}