TreeView绑定硬盘文件

 有时候需要做一个像资源管理器一样的东西来查看服务器中的文件，怎么做呢，我写了一个

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;

namespace WebApplication1
{
    public partial class _Default : System.Web.UI.Page
    {
        private void Page_Load(object sender, System.EventArgs e)
        {
            if (!IsPostBack)
            {
                BdTreeView(AppDomain.CurrentDomain.BaseDirectory,TreeView1.Nodes);
            }

        }

        public void BdTreeView(string dir, TreeNodeCollection tc)
        {
            DirectoryInfo di = new DirectoryInfo(dir);
            DirectoryInfo[] sunDir = di.GetDirectories();
            FileInfo[] ffi = di.GetFiles();
            foreach (DirectoryInfo i in sunDir)
            {
                TreeNode tn = new TreeNode();
                tn.Text = Path.GetFileName(i.FullName);
                tc.Add(tn);
                BdTreeView(i.FullName, tn.ChildNodes);
            }
            foreach (FileInfo j in ffi)
            {
                TreeNode fileNode = new TreeNode();
                fileNode.Text = System.IO.Path.GetFileName(j.FullName);
                tc.Add(fileNode);
            }

        }



    }
}