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  • TreeView控件应用(包含递归调用)

    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);
                    }
                }
            }

        }
    }

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  • 原文地址:https://www.cnblogs.com/java20130723/p/3211476.html
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