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webform1.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="test4_8.WebForm1" %>
           
   
    
    
        
             
     
        
                 
                  
                  
                  
                  
                  
                  
              
             
     
        
         
    
    
   

webform1.aspx.cs

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;namespace test4_8{    public partial class WebForm1 : System.Web.UI.Page    {        protected void Page_Load(object sender, EventArgs e)        {        }        protected void CheckBoxList1_SelectedIndexChanged(object sender, EventArgs e)        {            string result = string.Empty;            for (int i = 0; i < CheckBoxList1.Items.Count; i++)            {                if (CheckBoxList1.Items[i].Selected == true)                {                    result += CheckBoxList1.Items[i].Text + " ";                }            }            lbl_tips.Text = Label1.Text + result;        }    }}