using System;

using System.Windows.Forms;

namespace TreeView控件

{     public partial class Form1 : Form     {         public Form1()         {             InitializeComponent();         }

        private void button1_Click(object sender, EventArgs e)

        {             treeView1.Nodes.Clear();             //每一个节点都是一个TreeNode的一个对象             TreeNode nodeChina = new TreeNode();             nodeChina.Text = "中国";             nodeChina.Tag = "好人";             nodeChina.Nodes.Add("江苏");             TreeNode nodeBeiJing = new TreeNode("北京");             nodeChina.Nodes.Add(nodeBeiJing);             treeView1.Nodes.Add(nodeChina);

            TreeNode nodeJapan = new TreeNode();

            nodeJapan.Text = "日本";             //把节点的tag属性指向一个对象             nodeJapan.Tag = "剑人";             nodeJapan.Nodes.Add("东京");             treeView1.Nodes.Add(nodeJapan);

            //通过创建对象来创建节点，将节点的tag属性指向这个对象

            Area shanghai = new Area("上海");             shanghai.Boss = "上海市长";             TreeNode nodeShanghai = new TreeNode();             nodeChina.Nodes.Add(nodeShanghai);             nodeShanghai.Text = shanghai.Name;             nodeShanghai.Tag = shanghai;         }

        private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)

        {             //MessageBox.Show(e.Node.Tag.ToString());             MessageBox.Show(e.Node.Text);         }

        //用递归遍历树

        private void button2_Click(object sender, EventArgs e)         {             foreach (TreeNode node in treeView1.Nodes)             {                 DisplayNode(node);             }         }         private void DisplayNode(TreeNode node)         {             textBox1.AppendText(node.Text + "\r\n");             if (node.Nodes.Count>0)             {                 foreach (TreeNode childNode in node.Nodes)                 {                     DisplayNode(childNode);                 }             }         }

    }

}

本文转自蓬莱仙羽51CTO博客，原文链接：http://blog.51cto.com/dingxiaowei/1366788，如需转载请自行联系原作者