ASP2.0中实现无刷新界面功能

WEB代码如下，主要实现了ICallbackEventHandler接口。比较简单，不多说了。自己看代码

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 ,ICallbackEventHandler
{
string s = "";
protected void Page_Load(object sender, EventArgs e)
{

}

#region ICallbackEventHandler 成员

public string GetCallbackResult()
{
return "服务器的值"+s;
}

public void RaiseCallbackEvent(string eventArgument)
{
s = eventArgument;
}

#endregion
}


＜%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %＞

＜!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ""＞