主要思路就是为ListItem加一个"checkValue"属性，前台通过javascript找到。

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

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>Javascript得到CheckBoxList的Valuetitle>
    <script type="text/javascript" src="../js/jquery-1.3.2.min.js">script>
    <script type="text/javascript">
        //把选中的值写入hiddenfield
        function f(){
            var total = $("#chkBox input[@type=checkbox]:checked").size();
            var checkValues = '';
            $("#chkBox input[@type=checkbox]:checked").each(function(){
                checkValues += $(this).parent().attr("checkValue") + ",";
            });
            alert("选中了" + total + "个" + "\n" + "值：" + checkValues.substring(0,checkValues.length-1));
        }
    script>
head>
<body>
    <form id="form1" runat="server">
    <div>
        主要思路就是为ListItem加一个"checkValue"属性，前台通过javascript找到。
    div>
    <div>
        <input type="button" onclick="f();" value="取值" />
        <asp:CheckBoxList ID="chkBox" runat="server">
        asp:CheckBoxList>
    div>
    form>
body>
html>

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 test_CheckBoxListValue : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
            Bind();
    }
    private void Bind()
    {
        ListItem li1 = new ListItem("1", "1");
        li1.Attributes.Add("checkValue", "1");
        chkBox.Items.Add(li1);

        ListItem li2 = new ListItem("2", "2");
        li2.Attributes.Add("checkValue", "2");
        chkBox.Items.Add(li2);
    }
}

ITPub博客

Javascript得到CheckBoxList的Value

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