用TreeView显示某一文件夹下的所有目录和文件

网络上居然找不到现成的代码,特此补充一篇.

关键字:TreeView,asp.net2.0,c#,文件,目录

public partial class Admin_FileList_Test : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

        if (!Page.IsPostBack)

        {

            TreeNode tn = new TreeNode();

            tn.Text = "根目录";

            getDirectories(Server.MapPath("../"), tn);

 

            TreeView1.Nodes.Add(tn);

        }

    }

 

    /// <summary>

    /// 循环遍历获得某一目录下的所有文件信息

    /// </summary>

    /// <param name="path">目录名</param>

    /// <param name="tn">树节点</param>

    private static void getDirectories(string path,TreeNode tn)

    {

        string[] fileNames = Directory.GetFiles(path);

        string[] directories = Directory.GetDirectories(path);

       

        //先遍历这个目录下的文件夹

        foreach (string dir in directories)

        {

            TreeNode subtn = new TreeNode();

            subtn.Text = GetShorterFileName(dir);

            subtn.ImageUrl = "~/Images/open.gif";

            subtn.Expanded = false;

            subtn.NavigateUrl = "#";

            getDirectories(dir,subtn);

            tn.ChildNodes.Add(subtn);

        }

 

        //再遍历这个目录下的文件

        foreach (string file in fileNames)

        {

            TreeNode subtn = new TreeNode();

            subtn.ImageUrl = "~/Images/file.gif";

            subtn.Text = GetShorterFileName(file);

            tn.ChildNodes.Add(subtn);

        }

    }

 

    /// <summary>

    /// 滤去文件名前面的路径

    /// </summary>

    /// <param name="filename"></param>

    /// <returns></returns>

    private static string GetShorterFileName(string filename)

    {

        return "&nbsp;"+filename.Substring(i+1);

    }

}