treeviewcode.aspx.cs

《圣殿祭司的ASP.NET 2.0开发详解——使用C#》光盘内容.包含了书籍所含的源代码.非常经典的一本asp.net2.0的书籍

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;

public partial class TreeViewCode : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            GenTreeNode();  //调用GenTreeNode()方法以建立TreeView之节点
        }
    }

    //建立TreeView之节点
    private void GenTreeNode()
    {
        TreeView TreeView1 = new TreeView();
        //定义Root Node
        TreeNode RootNode = new TreeNode(); //建立节点实例
        RootNode.Text = "电脑产品总览";//设置节点的显示文字
        RootNode.Value = "电脑产品";    //设置节点的数值
        RootNode.NavigateUrl = "Default.aspx";  //设置节点的Url
        TreeView1.Nodes.Add(RootNode);  //加入节点

        //在Root Node加入Parent Node
        TreeNode CpuNode = new TreeNode();
        TreeNode MbNode = new TreeNode();
        TreeNode HddNode = new TreeNode();

        AddNode(RootNode, CpuNode, "CPU处理器", "CPU", "CPU.aspx");
        AddNode(RootNode, MbNode, "主板", "主板", "MB.aspx");
        AddNode(RootNode, HddNode, "硬盘", "硬盘", "HDD.aspx");

        //建立各个Parent Node下面的Child Node
        TreeNode IntelNode = new TreeNode();
        TreeNode AmdNode = new TreeNode();
        AddNode(CpuNode, IntelNode, "INTEL处理器", "INTEL", "INTEL.aspx");
        AddNode(CpuNode, AmdNode, "AMD处理器", "AMD", "AMD.aspx");

        TreeNode AsusNode = new TreeNode();
        TreeNode GigaByteNode = new TreeNode();
        TreeNode MsiNode = new TreeNode();


        AddNode(MbNode, AsusNode, "华硕主板", "华硕", "ASUS.aspx");
        AddNode(MbNode, GigaByteNode, "技嘉主板", "技嘉", "GigaByte.aspx");
        AddNode(MbNode, MsiNode, "微星主板", "微星", "Msi.aspx");

        TreeNode SeagateNode = new TreeNode();
        TreeNode MaxtorNode = new TreeNode();

        AddNode(HddNode, SeagateNode, "Seagate硬盘", "Seagate", "Seagate.aspx");
        AddNode(HddNode, MaxtorNode, "Maxtor硬盘", "Maxtor", "Maxtor.aspx");

        //将TreeView1加入
        TreeView1.ShowLines = true;         //设置显示节点之间连接线
        TreeView1.ShowCheckBoxes = TreeNodeTypes.Leaf;    //设置节点上显示CheckBox
        Page.FindControl("Form1").Controls.Add(TreeView1);  //将TreeView加入Form1

    }

    private void AddNode(TreeNode ParentNode, TreeNode ChildNode, string NodeText, string NodeValue, string NodeNavigateUrl)
    {
        ChildNode.Text = NodeText;      //设置节点的显示文字
        ChildNode.Value = NodeValue;    //设置节点的数值
        ChildNode.NavigateUrl = NodeNavigateUrl;    //设置节点的Url

        ParentNode.ChildNodes.Add(ChildNode);   //将子节点加入到父节点
    }
}