原文发布时间为：2008-07-29 —— 来源于本人的百度文章 [由搬家工具导入]

using System;
using System.Data;
using System.Configuration;
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 _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        switch (((Button)sender).CommandName)
        {
            case "a":
                Label1.Text = "aaa";
                break;
            case "b":
                Label1.Text = "bbb";
                break;

            case "c":
                Label1.Text = "ccc";
                break;
        }
    }
    protected void a(object sender, CommandEventArgs e)
    {

    }
    protected void AdRotator1_AdCreated(object sender, AdCreatedEventArgs e)
    {
        string url = e.AlternateText;
        string sdate = e.AdProperties["Sdate"].ToString();
        string edate = e.AdProperties["Edate"].ToString();
        Response.Write(url + "start date:" + sdate + ",end date:" + edate);
    }
    protected void BulletedList2_DataBound(object sender, EventArgs e)
    {
        for (int i = 0; i < BulletedList2.Items.Count; i++)
        {
            BulletedList2.Items[i].Value = http://www.mamicode.com/"http://www." + BulletedList2.Items[i].Value + ".com";
        }

    }

    protected void BulletedList3_Click(object sender, BulletedListEventArgs e)
    {
        Response.Write("<br>"+BulletedList3.Items[e.Index].Value);
    }
}

----------------------------

广告控件的XML文档 Ad.XML内容：

<?xml version="1.0" encoding="utf-8"?>
<Advertisements>
<Ad>
    <ImageUrl>~/image/baidu.gif</ImageUrl>
    <NavigateUrl>http://www.baidu.com</NavigateUrl>
    <AlternateText>baidu</AlternateText>
    <Keyword>baiduzhidao</Keyword>
    <Impressions>50</Impressions>
    <Sdate>6/23/2008</Sdate>
    <Edate>6/29/2008</Edate>
</Ad>
<Ad>
    <ImageUrl>~/image/google.gif</ImageUrl>
    <NavigateUrl>http://www.google.com</NavigateUrl>
    <AlternateText>google</AlternateText>
    <Keyword>google gou</Keyword>
    <Impressions>30</Impressions>
    <Sdate>6/23/2008</Sdate>
    <Edate>7/23/2008</Edate>
</Ad>
<Ad>
    <ImageUrl>~/image/iask.gif</ImageUrl>
    <NavigateUrl>http://www.iask.com</NavigateUrl>
    <AlternateText>iask</AlternateText>
    <Keyword>aiwen</Keyword>
    <Impressions>50</Impressions>
    <Sdate>7/1/2008</Sdate>
    <Edate>9/23/2008</Edate>
</Ad>
</Advertisements>

net3：Button的CommandName使用，AdRotator，BulletedList的使用