treeview单选效果怎么写

玄极 2014-05-08 03:12:06

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="TreeTest.aspx.cs" Inherits="test.WebForm3" %>



<!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>

    <script type="text/javascript">

        function selectCheck() {

            var els = event.srcElement; //获取当前事件的对象   

            if (els.type == 'checkbox') {

                var divId = els.id.replace('CheckBox', 'Nodes'); //获取子节点的层Id

                var divObj = document.getElementById(divId); //获取层对象

                if (divObj != null) {

                    var checkBoxs = divObj.getElementsByTagName('input'); //获取层下所有input 控件

                    for (var i = 0; i < checkBoxs.length; i++) {

                        if (checkBoxs[i].type == 'checkbox') //控件为checkbox

                        {

                            checkBoxs[i].checked = els.checked; //设置复选框状态

                        } 

                    } 

                } 

            } 

        }

    </script>

</head>

<body>

    <form id="form1" runat="server">

    <div>

        <asp:TreeView ID="TreeView1" runat="server" ShowCheckBoxes="All" onclick="selectCheck()"

            ShowLines="True">

        </asp:TreeView>

    </div>

    </form>

</body>

</html>

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Data;



namespace test

{

    public partial class WebForm3 : System.Web.UI.Page

    {

        protected void Page_Load(object sender, EventArgs e)

        {

            if (!IsPostBack)

            {

                BindData();

            }

        }



        protected void BindData()

        {

            DataTable newdtb = new DataTable();

            newdtb.Columns.Add("Id", typeof(int));

            newdtb.Columns.Add("ProName", typeof(string));

            newdtb.Columns.Add("ProPrice", typeof(decimal));

            newdtb.Columns["Id"].AutoIncrement = true;



            for (int i = 1; i < 3; i++)

            {

                DataRow newRow = newdtb.NewRow();

                newRow["ProName"] = "pro" + i.ToString();

                newRow["ProPrice"] = 12.3m;

                newdtb.Rows.Add(newRow);

            }

            for (int i = 0; i < newdtb.Rows.Count; i++)

            {

                TreeNode node = new TreeNode();

                node.Text = newdtb.Rows[i]["ProName"] + "=====" + newdtb.Rows[i]["ProPrice"];

                TreeView1.Nodes.Add(node);

                BindTreeChildNodes(node, newdtb);

            }

            TreeView1.ExpandDepth = 1;

        }

        protected void BindTreeChildNodes(TreeNode chNode, DataTable dt)

        {

            for (int i = 0; i < dt.Rows.Count; i++)

            {

                TreeNode node = new TreeNode();

                node.Text = dt.Rows[i]["ProName"] + "=====" + dt.Rows[i]["ProPrice"];

                chNode.ChildNodes.Add(node);

                BindTreeChildNodesCh(node, dt);

            }

        }



        protected void BindTreeChildNodesCh(TreeNode chNode, DataTable dt)

        {

            for (int i = 0; i < dt.Rows.Count; i++)

            {

                TreeNode node = new TreeNode();

                node.Text = dt.Rows[i]["ProName"] + "=====" + dt.Rows[i]["ProPrice"];

                chNode.ChildNodes.Add(node);

            }

        }

    }

}