form1.cs

这是.net2005学习不可缺少的教程

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

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

            // 展开树状控件的根结点
            this.treeView1.Nodes[0].Expand();
            // 展开根节点的第一个子结点
            this.treeView1.Nodes[0].Nodes[0].Expand();

            CallRecursive(this.treeView1);
        }

        private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
        {
            // Remove the existing data.
            textBox1.Text = "";
            textBox2.Text = "";
            textBox3.Text = "";

            switch (e.Node.Text)
            {
                case ".NET技术新手入门":
                    textBox1.Text = e.Node.Text;
                    textBox2.Text = "梁博";
                    textBox3.Text = "A出版社";

                    EnableControls();
                    break;
                case "高级C#编程":
                    textBox1.Text = e.Node.Text;
                    textBox2.Text = "B作者";
                    textBox3.Text = "B出版社";

                    EnableControls();
                    break;
                case "Eclipse":
                    textBox1.Text = e.Node.Text;
                    textBox2.Text = "C作者";
                    textBox3.Text = "C出版社";

                    EnableControls();
                    break;
                default:
                    textBox1.Enabled = false;
                    textBox2.Enabled = false;
                    textBox3.Enabled = false;
                    break;
            }
        }

        private void EnableControls()
        {
            textBox1.Enabled = true;
            textBox3.Enabled = true;
            textBox2.Enabled = true;
        }

        private void PrintRecursive(TreeNode treeNode)
        {
            // Check the node.
            treeNode.Checked = true;
            // Print each node recursively.
            foreach (TreeNode tn in treeNode.Nodes)
            {
                PrintRecursive(tn);
            }
        }

        // Call the procedure using the TreeView.
        private void CallRecursive(TreeView treeView)
        {
            // Print each node recursively.
            TreeNodeCollection nodes = treeView.Nodes;
            foreach (TreeNode n in nodes)
            {
                PrintRecursive(n);
            }
        }
    }
}