asp.net动态加载checkbox的全选/全不选

asp.net动态加载checkbox的全选/全不选:以下为演示例子
CheckAlll.aspx

CheckAll.asp.cs

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;

namespace TJBASE.Web