Asp.Net C#程序代码动态添加TreeView节点

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TreeViewTest.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="TreeViewTest.aspx.cs" Inherits="menu_TreeViewTest" %>

<!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>无标题页</title>
    <style type="text/css">
     body,td,div,span{font-size:9pt;}
    .menu{border:1px solid #66AADD;background:#ffffff;}
    .menu2{border:1px solid #66AADD;background:#eeeeee;}
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:TreeView ID="TreeView1" runat="server" ImageSet="XPFileExplorer" ShowLines="True" ExpandDepth="1">
        </asp:TreeView>
    </div>
    </form>
</body>
</html>

TreeViewTest.aspx.cs

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

public partial class menu_TreeViewTest : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        BindTreeNode();
    }

    protected void BindTreeNode()
    {
        TreeNode RootNode = new TreeNode();
        RootNode.Text = "管理系统";
        RootNode.NavigateUrl = "#";
        TreeView1.Nodes.Add(RootNode);     //根节点
        addLevel1_node(RootNode);
    }

    protected void addLevel1_node(TreeNode ParentNode)
    {
        string[] Level1_TreeItem = { "Web服务器", "数据库服务器", "应用服务器", "文件服务器", "邮件服务器", "监控服务器" }; //一级树节点初始值
        foreach (string item in Level1_TreeItem)
        {
            TreeNode Level1_Node = new TreeNode();
            Level1_Node.Text = item;
            Level1_Node.NavigateUrl = "#";
            Level1_Node.Target = "_self";
            Level1_Node = addChildNode(ParentNode, item, "#", "_self"); //一级树节点
            TreeNode Level2_Node = new TreeNode();
            for (int i = 1; i <= 3; i++)
            {
                Level2_Node = addChildNode(Level1_Node, item + "_" + i, "#", "_self"); //二级树节点
                TreeNode Level3_Node = new TreeNode();
                for (int j = 1; j <= 3; j++)
                {
                    Level3_Node = addChildNode(Level2_Node, item + "_" + i + "_" + j, "#", "_self"); //三级树节点
                }
            }
        }
    }

    protected TreeNode addChildNode(TreeNode ParentNode, string Text, string NavigateUrl, string Target)
    {
        TreeNode node = new TreeNode();
        node.Text = Text;
        node.NavigateUrl = NavigateUrl;
        node.Target = Target;
        ParentNode.ChildNodes.Add(node);
        return node;
    }
}