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效果图如图所示：

一：读取目录下的子目录信息

通过TreeNode向TreeView中添加根节点，其次绑定子目录以及获取目录下的文件列表，在TreeView双击事件中进行调用

        //单击绑定文件和文件夹信息
        private void treeList_AfterSelect(object sender, TreeViewEventArgs e)
        {
            TreeNode node = this.treeList.SelectedNode;

            this.BindInfo(node);
        }

        public void ShowTree()
        {
            TreeNode tn = new TreeNode();
            tn.Tag="C:\";
            tn.Text = "C:\";
            treeList.Nodes.Add(tn);

            TreeNode tn1 = new TreeNode();
            tn1.Tag = "D:\";
            tn1.Text = "D:\";
            treeList.Nodes.Add(tn1);

            TreeNode tn2 = new TreeNode();
            tn2.Tag = "E:\";
            tn2.Text = "E:\";
            treeList.Nodes.Add(tn2);
        }


        //将目录绑定到TreeView中
        private void BindInfo(TreeNode node)
        { 
            //绑定子目录
            DirectoryInfo dir = new DirectoryInfo(node.Tag.ToString());

            DirectoryInfo[] dirs = dir.GetDirectories();

            foreach (DirectoryInfo di in dirs)
            {
                TreeNode temp = new TreeNode();
                temp.Text = di.Name;
                temp.Tag = di.FullName;
                node.Nodes.Add(temp);
            }
        
            //获取目录下文件列表
            FileInfo[] fileInfo = dir.GetFiles();

            if (lvList!=null)
            {
                lvList.Items.Clear();
            }
            //绑定 
            foreach (FileInfo item in fileInfo)
            {
                ListViewItem list = new ListViewItem(item.Name);
                list.SubItems.Add((item.Length/1024.0).ToString());
                list.SubItems.Add(item.Extension);
                list.SubItems.Add(item.FullName);

                lvList.Items.Add(list);
            }
            

        }

二：实现文件复制

①：在右键菜单的响应事件中实现文件移动

②：通过“浏览文件夹”窗体使用FolderBrowserDialog类

③：文件复制使用File类的Copy()方法

关键代码如下：

       //复制
        private void tsmCopy_Click(object sender, EventArgs e)
        {
            if (this.lvList.SelectedItems.Count == 0)
            {
                return;
            }

            //提示用户选择目标文件夹
            FolderBrowserDialog fdb = new FolderBrowserDialog();

            DialogResult result = fdb.ShowDialog();

            //源文件路径
            string sourcePath = lvList.SelectedItems[0].SubItems[3].Text;

            //目标文件路径
            string desPath = null;

            //如果正确选择目标位置，执行复制操作
            if (result == DialogResult.OK)
            {
                desPath = fdb.SelectedPath;

                //lvList表示显示文件信息的ListView对象
                desPath += "\" + lvList.SelectedItems[0].SubItems[0].Text;

                //复制文件
                File.Copy(sourcePath,desPath);

                MessageBox.Show("复制成功！");

            
            }
        }

三：实现文件删除

        //删除
        private void tsmDele_Click(object sender, EventArgs e)
        {
            if (this.lvList.SelectedItems.Count == 0)
            {
                return;
            }

            FileInfo fi = new FileInfo(lvList.SelectedItems[0].SubItems[3].Text);
            fi.Delete();

            if (lvList != null)
            {
                TreeNode node = this.treeList.SelectedNode;
                this.BindInfo(node);
            }

            MessageBox.Show("删除成功！");
        }

四：获取文件路径  打开文件

    private void lvList_DoubleClick(object sender, EventArgs e)
        {
           
            string path = lvList.SelectedItems[0].SubItems[3].Text;
            Process.Start(path);

        }

Process代表进程、需引入命名空间：using System.Diagnostics;

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