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Asp.Net C#程式碼動態添加TreeView節點

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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>無標題頁</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 = "管理系統";
        RootNode.NavigateUrl = "#";
        TreeView1.Nodes.Add(RootNode);     //根節點
        addLevel1_node(RootNode);
    }

    protected void addLevel1_node(TreeNode ParentNode)
    {
        string[] Level1_TreeItem = { "Web伺服器", "資料庫伺服器", "應用伺服器", "檔案伺服器", "郵件伺服器", "監控伺服器" }; //一級樹節點初始值
        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");  //一級樹節點
            TreeNode Level2_Node = new TreeNode();
            for (int i = 1; i <= 3; i++)
            {
                Level2_Node = addChildNode(Level1_Node, item + "_" + i, "#", "_self");  //二級樹節點
                TreeNode Level3_Node = new TreeNode();
                for (int j = 1; j <= 3; j++)
                {
                    Level3_Node = addChildNode(Level2_Node, item + "_" + i + "_" + j, "#", "_self");  //三級樹節點
                }
            }
        }
    }

    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;
    }
}

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