如果你用vs2008来做的话会比较简单，只要拖两个控件就好了。ScriptManager和UpdatePanel，ScriptManager要在UpdatePanel前拖入。然后在UpdatePanel里面拖表格控件。里面放图片和文字的用ImageButton和LinkButton。点击事件写同一段代码。
前台代码：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="
http://www.w3.org/1999/xhtml">
<head runat="server">
<title>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<table>
<tr >
<td>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:ImageButton ID="ImageButton1" runat="server"
onclick="ImageButton1_Click" />
<asp:LinkButton ID="LinkButton1" runat="server" onclick="ImageButton1_Click">看不请?点击此处换一张</asp:LinkButton>
</ContentTemplate>
</asp:UpdatePanel>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
.cs代码（后台代码）
using System;
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 _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
{
//此处写代码，实现换图
}
}本回答被提问者采纳