小型资源管理器之动态添加TreeView节点

FrmMain主界面

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

namespace Day09_0300小型资源管理器
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        public void BindInfo(TreeNode node) 
        {
            lvMain.Items.Clear();
            //绑定子目录
            DirectoryInfo dic = new DirectoryInfo(node.Tag.ToString());
            DirectoryInfo[] dirs = dic.GetDirectories();
            foreach (DirectoryInfo item in dirs)
                {
               TreeNode tn=new TreeNode();
                tn.Text=item.Name;
                tn.Tag=item.FullName;
                node.Nodes.Add(tn);
                  }
            FileInfo[] file = dic.GetFiles();
            ListViewItem lvi = new ListViewItem();
            foreach (FileInfo di in file)
            {
                lvi = new ListViewItem(di.Name);
                lvi.SubItems.Add(di.FullName);
                lvi.SubItems.Add(di.Extension);
                lvi.SubItems.Add(di.Length.ToString());
                lvMain.Items.Add(lvi);
            }

        }
       
        private void tvList_AfterSelect(object sender, TreeViewEventArgs e)
        {
            TreeNode node = this.tvList.SelectedNode;
            this.BindInfo(node);
        }

    }
}