asp.net 中如何获取Repeater控件FooterTemplate内的控件?

前台
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="repeater获取控件.aspx.cs" Inherits="repeater获取控件" %>

'>

SelectCommand="SELECT * FROM [test126]">

后台
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

public partial class repeater获取控件 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}
protected void Repeater1_ItemCommand(object source, RepeaterCommandEventArgs e)
{
if (e.CommandName.Equals("get"))
{
Button button = Repeater1.Controls[Repeater1.Controls.Count-1].FindControl("Button2") as Button;//关键在于Controls[Repeater1.Controls.Count-1]
string s = button.CommandName;
}
}
}