某一个时候，CheckBoxList的选择太多，用户需要一个全选或全取消的功能。下面Insus.NET使用Javascript来实现它。

准备好一个对象：

using System;using System.Collections.Generic;using System.Linq;using System.Web;/// 
/// Summary description for MusicType/// 
namespace Insus.NET{    public class MusicType    {        private int _ID;        private string _TypeName;        public int ID        {            get { return _ID; }            set { _ID = value; }        }        public string TypeName        {            get { return _TypeName; }            set { _TypeName = value; }        }        public MusicType()        {            //            // TODO: Add constructor logic here            //        }        public MusicType(int id, string typeName)        {            this._ID = id;            this._TypeName = typeName;        }            }}

填充对象：

public List
      
        GetMusicType()    {        List
       
         mt = new List
        
         ();        mt.Add(new MusicType(1, "甜密情歌"));        mt.Add(new MusicType(2, "网络红歌"));        mt.Add(new MusicType(3, "儿童歌曲"));        mt.Add(new MusicType(4, "民族精选"));        mt.Add(new MusicType(5, "校园歌曲"));        mt.Add(new MusicType(6, "摇滚音乐"));        mt.Add(new MusicType(7, "胎教音乐"));        mt.Add(new MusicType(8, "红色名曲"));        mt.Add(new MusicType(9, "串烧金曲"));        mt.Add(new MusicType(10, "动慢歌曲"));        return mt;    }
        
       
      

在站点建一个aspx网页，并拉两个控件，一个是CheckBox和CheckBoxList:

全选
      
            
      

接下来，我们为CheckBoxList绑定数据：

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using Insus.NET;public partial class Default2 : System.Web.UI.Page{    protected void Page_Load(object sender, EventArgs e)    {        if (!IsPostBack)            Data_Binding();    }    private void Data_Binding()    {        this.CheckBoxListMusicType.DataSource = GetMusicType();        this.CheckBoxListMusicType.DataTextField = "TypeName";        this.CheckBoxListMusicType.DataValueField = "ID";        this.CheckBoxListMusicType.DataBind ();    }   }

最后是写Javascript代码：

ok完成，看看效果：