456主机测评
各位博友好，本着共享的原则，本人花了点时间写了个这棵树，虽然简单，但是应该很实用。
我知道我们可以使用 Web.sitemap 来实现，但是用Web.sitemap 需要预先写好配置，我写这个就不需要考虑配置了。
比如说你的目录改变了，那么自动生成树也会跟着变动，下面贴代码：
MyWebsiteTreeView.aspx<%@ Page Language="C#" AutoEventWireup="true" CodeFile="MyWebsiteTreeView.aspx.cs"
Inherits="MyWebsiteTreeView" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TreeView ID="TreeView1" runat="server">
</asp:TreeView>
<asp:DropDownList ID="ddlRootDirectory" runat="server">
</asp:DropDownList>
<asp:Button ID="btnGenerateDirectoryTree" runat="server" Text="Ggenerate Directory Tree"
onclick="btnGenerateDirectoryTree_Click" />
</div>
</form>
</body>
</html>
MyWebsiteTreeView.aspx.csusing system;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO; public partial class MyWebsiteTreeView : System.Web.UI.Page
{
/// <summary>
/// 页面加载时，就动态绑定目录到DropDownList控件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
BindDirectoryToDropDownList(ddlRootDirectory);
}
}
/// <summary>
/// 调整树节点，使与Firefox 浏览器兼容
/// </summary>
/// <param name="node"></param>
void SdjustNodes(TreeNode node)
{
string ab = node.NavigateUrl;
//Suodaosoft 是根目录名
node.NavigateUrl = node.NavigateUrl.Replace("Suodaosoft\\", "");
node.NavigateUrl = node.NavigateUrl.Replace("\\", "/");//与 Firefox 兼容，IE 能识别“\\”,可是FireFox 不能识别
if (node.ChildNodes.Count > 0)
{
foreach (TreeNode childNode in node.ChildNodes)
{
SdjustNodes(childNode);
}
}
}
TreeNode OutputDirectory(System.IO.DirectoryInfo directory, TreeNode parentNode)
{
if (directory == null) return null;
// 为目录建立节点
TreeNode DirNode = new TreeNode(directory.Name);
// 从当前目录得到子目录
System.IO.DirectoryInfo[] SubDirectories = directory.GetDirectories();
// 得出子目录
for (int DirectoryCount = 0; DirectoryCount < SubDirectories.Length; DirectoryCount++)
{
OutputDirectory(SubDirectories[DirectoryCount], DirNode);
}
// 输出当前目录文件
System.IO.FileInfo[] Files = directory.GetFiles();
for (int FileCount = 0; FileCount < Files.Length; FileCount++)
{
//------------------------------------
//注意，我注释了if 的条件!
//这儿其实有个小技巧
//可以筛选你想要的文件
//------------------------------------
//if (Files[FileCount].Extension == ".htm")
//{
string filename = ConvertFileToRelativePaths(Files[FileCount].FullName, "Suodaosoft");
DirNode.ChildNodes.Add(new TreeNode(Files[FileCount].Name, Files[FileCount].Name, "", filename, "_blank"));
//}
}
//如果父节点是NULL， 就返回本节点
//否则就加到父节点，并返回父节点
if (parentNode == null)
{
return DirNode;
}
else
{
parentNode.ChildNodes.Add(DirNode);
return parentNode;
}
}
/// <summary>
/// 转换文件路径
/// </summary>
/// <param name="fileName">文件名</param>
/// <param name="rootName">根目录名</param>
/// <returns>目录</returns>
string ConvertFileToRelativePaths(string fileName, string rootName)
{
return fileName.Substring(fileName.LastIndexOf(rootName));
}
/// <summary>
/// 建立目录树
/// </summary>
/// <param name="tv"></param>
void GenerateDirectoryTree(TreeView tv)
{
tv.Nodes.Clear();
System.IO.DirectoryInfo RootDir
= new System.IO.DirectoryInfo(Server.MapPath("~/" + ddlRootDirectory.SelectedValue + "/"));if (ddlRootDirectory.SelectedValue == "Root")
{
RootDir = new System.IO.DirectoryInfo(Server.MapPath("~/"));
}
// 把目录树输出到一个节点
TreeNode RootNode = OutputDirectory(RootDir, null);
// 把目录树加入根节点
TreeView1.Nodes.Add(RootNode);
foreach (TreeNode node in tv.Nodes)
{
SdjustNodes(node);
}
}
/// <summary>
/// 把动态目录绑定到DropDownList控件上，供选择目录，如果选择Root,表示项Web工程的根节点
/// </summary>
/// <param name="ddl"></param>
void BindDirectoryToDropDownList(DropDownList ddl)
{
ddl.Items.Clear();
System.IO.DirectoryInfo RootDir = new System.IO.DirectoryInfo(Server.MapPath("~/"));//根节点
System.IO.DirectoryInfo[] SubDirectories = RootDir.GetDirectories();
ddl.Items.Add("Root");
foreach (DirectoryInfo dir in SubDirectories)
{
ddl.Items.Add(dir.Name);
}
}
/// <summary>
/// 根据DropDownList选择的目录，动态产生树
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void btnGenerateDirectoryTree_Click(object sender, EventArgs e)
{
GenerateDirectoryTree(TreeView1);
}
}
具体应用，请在下面的这个链接上下载整个应用项目示例：
http://www.cnblogs.com/OceanChen/archive/2009/02/04/1383794.html
如果你有什么好的技术观点，你可以参与技术讨论，谢谢你的观点！
- 海报
