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      AjaxTestPopupControl.aspx
     <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="AjaxTestPopupControl.aspx.cs"
Inherits="WebDemo.Ajax.AjaxTestPopupControl" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
<!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>ÎÞ±êÌâÒ³</title>
<mce:style type="text/css"><!--
/*Popup Control*/
.popupControl
{
background-color:White;
position:absolute;
visibility:hidden;
}

--></mce:style>
</head>
<body>
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AjaxÈëÃÅÍÆ¼ö

¶ÔÏëѧAjaxµÄÐÂÈË£¬Ç¿ÁÒÍÆ¼öÒ»ÏÂÎÄÕ£º¡¶ÕÆÎÕ Ajax ϵÁС·     http://www.ibm.com/developerworks/cn/web/wa-ajaxintro/
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php µÄ ajax ʵÏÖ

<script type="text/javascript" src="jquery-1.3.2.min.js"></script>
<input type="button" onclick="test();" value="Ìá½»"/>
<script type="text/javascript">
    function test(){
            var valid = {
& ......

ÍêÃÀAjaxÀà,Ö§³Öʼþ

<scrīpt Language="Javascrīpt">
<!--
// author:±¼ÌÚµÄÐÄ
//     qq:7180001
function Ajax(OnError,OnState,OnDownloadEnd)
{
        this.ErrorStr                 = null;
        ......

ASP.NET+Ajax+JavascriptʵÏÖÒ³Ãæ¶¨´Îˢйö¶¯ÄÚÈÝ

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AJAX (XHR)Òì²½ÇëÇóµÄһЩÈÏʶ

function sendAsynchronRequest(url,parameter,callback){
 createXMLHttpRequest();
 if(parameter == null){
  xmlHttp.onreadystatechange = callback;
  xmlHttp.open("GET",url,true);//µ±GETÇëÇóʱ£¬ÔÚµØÖ·À¸ÖÐÊÇ´ø²ÎÊýµÄ£¬¶ø²ÎÊýΪNULL£¬ËùÒÔÓÃgetÇëÇó£¬send(null)
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