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 ×îÐÂÎÄÕ : ajax

ASP.NET ʾÀý AJAX Ó¦ÓóÌÐò


      ±¾½Ì³Ì´´½¨Ê¹Óà ASP.NET µÄ AJAX ¹¦ÄܵĻù±¾Ê¾ÀýÓ¦ÓóÌÐò¡£Äú¿ÉÒÔÁ˽⵽ÓÐ¹Ø ASP.NET µÄ AJAX ¹¦Äܵĸü¶àÐÅÏ¢£¬½«ÖªµÀÕâЩ¹¦ÄÜÖ¼ÔÚ½â¾öÄÄЩ¼¼ÊõÎÊÌ⣬ÒÔ¼°ÒÔϽéÉÜÐÔÎĵµ½«Éæ¼°ÄÄЩÖØÒªµÄ AJAX ×é¼þ£º
·ASP.NET AJAX Overview
·Ìí¼Ó AJAX ºÍ¿Í»§¶Ë¹¦ÄÜ
ÔÚ±¾½Ì³ÌÖУ¬Äú½«Éú³ÉÒ»¸öÓ¦ÓóÌÐò£¬¸ÃÓ¦ÓóÌÐò¿ÉÏÔʾ AdventureWorks ʾÀýÊý¾Ý¿âÖеÄÔ±¹¤Êý¾ÝÒ³¡£¸ÃÓ¦ÓóÌÐòʹÓà UpdatePanel ¿Ø¼þ½öË¢ÐÂÒ³ÃæÖз¢Éú¸ü¸ÄµÄ²¿·Ö£¬¶ø²»»á·¢ÉúÒ³ÃæÉÁ˸£¬Ò³ÃæÉÁ˸ÊÇ°éËæ»Ø·¢·¢ÉúµÄ¡£Õâ³ÆΪ“²¿·ÖÒ³¸üД¡£¸ÃʾÀýÓ¦ÓóÌÐò»¹Ê¹Óà UpdateProgress ¿Ø¼þ£¬ÔÚ½øÐв¿·ÖÒ³¸üÐÂʱÏÔʾ״̬ÏûÏ¢¡£
 
Ò»¡¢´´½¨ ASP.NET ÍøÕ¾
1¡¢Æô¶¯ Visual Studio¡£
2¡¢ÔÚ“Îļþ”²Ëµ¥ÖУ¬µ¥»÷“н¨ÍøÕ¾”¡£ÏÔʾ“н¨ÍøÕ¾”¶Ô»°¿ò¡£
3¡¢ÔÚ“Visual Studio ÒÑ°²×°µÄÄ£°å”Ö®ÏÂÑ¡Ôñ“ASP.NET ÍøÕ¾”¡£
4¡¢ÊäÈëλÖúÍÓïÑÔ£¬È»ºóµ¥»÷“È·¶¨”¡£
 
¶þ¡¢Ïò ASP.NET ÍøÒ³Ìí¼Ó UpdatePanel ¿Ø¼þ
´´½¨Ò»¸ö ASP.NET ÍøÕ¾Ö®ºó£¬ÔÙ´´½¨Ò»¸ö°üÀ¨ UpdatePanel ¿Ø¼þµÄ ASP.NET ÍøÒ³¡£Ô ......

ASP.NET ʾÀý AJAX Ó¦ÓóÌÐò


      ±¾½Ì³Ì´´½¨Ê¹Óà ASP.NET µÄ AJAX ¹¦ÄܵĻù±¾Ê¾ÀýÓ¦ÓóÌÐò¡£Äú¿ÉÒÔÁ˽⵽ÓÐ¹Ø ASP.NET µÄ AJAX ¹¦Äܵĸü¶àÐÅÏ¢£¬½«ÖªµÀÕâЩ¹¦ÄÜÖ¼ÔÚ½â¾öÄÄЩ¼¼ÊõÎÊÌ⣬ÒÔ¼°ÒÔϽéÉÜÐÔÎĵµ½«Éæ¼°ÄÄЩÖØÒªµÄ AJAX ×é¼þ£º
·ASP.NET AJAX Overview
·Ìí¼Ó AJAX ºÍ¿Í»§¶Ë¹¦ÄÜ
ÔÚ±¾½Ì³ÌÖУ¬Äú½«Éú³ÉÒ»¸öÓ¦ÓóÌÐò£¬¸ÃÓ¦ÓóÌÐò¿ÉÏÔʾ AdventureWorks ʾÀýÊý¾Ý¿âÖеÄÔ±¹¤Êý¾ÝÒ³¡£¸ÃÓ¦ÓóÌÐòʹÓà UpdatePanel ¿Ø¼þ½öË¢ÐÂÒ³ÃæÖз¢Éú¸ü¸ÄµÄ²¿·Ö£¬¶ø²»»á·¢ÉúÒ³ÃæÉÁ˸£¬Ò³ÃæÉÁ˸ÊÇ°éËæ»Ø·¢·¢ÉúµÄ¡£Õâ³ÆΪ“²¿·ÖÒ³¸üД¡£¸ÃʾÀýÓ¦ÓóÌÐò»¹Ê¹Óà UpdateProgress ¿Ø¼þ£¬ÔÚ½øÐв¿·ÖÒ³¸üÐÂʱÏÔʾ״̬ÏûÏ¢¡£
 
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3¡¢ÔÚ“Visual Studio ÒÑ°²×°µÄÄ£°å”Ö®ÏÂÑ¡Ôñ“ASP.NET ÍøÕ¾”¡£
4¡¢ÊäÈëλÖúÍÓïÑÔ£¬È»ºóµ¥»÷“È·¶¨”¡£
 
¶þ¡¢Ïò ASP.NET ÍøÒ³Ìí¼Ó UpdatePanel ¿Ø¼þ
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ajax Àý×Ó

 <script type="text/javascript">
  //¶¨ÒåXMLHttpRequest¶ÔÏó±äÁ¿
  var xmlHttpRequest;
  
  /*
   * ´´½¨XMLHttpRequest¶ÔÏó¡£
   * ±¾º¯ÊýÖ÷ÒªÍê³ÉXMLHttpRequest¶ÔÏóµÄ´´½¨£¬ºËÐÄ·ÖΪÒÔÏÂÁ½¸ö²¿·Ö£º
   * µÚÒ»²½£ºÊ×ÏÈÅжÏä¯ÀÀÆ÷ÊÇ·ñ°ÑXMLHttpRequest¶ÔÏóʵÏÖΪ±¾µØJavaScript¶ÔÏó£¬Èç¹û´æÔÚwindow.XMLHttpRequest£¬ÄÇô¾Í´´½¨XMLHttpRequest¶ÔÏó¡£
   * µÚ¶þ²½£ºÈç¹û²»´æÔÚwindow.XMLHttpRequest,ÄÇô¾Í³¢ÊÔÔÚMicrosoftä¯ÀÀÆ÷¶ÔÏóÖд´½¨¸Ã¶ÔÏó¡£ÔÚÕâ¸ö¹ý³ÌÖУ¬Ïȳ¢ÊÔʹÓÃMsxml2.XMLHTTP¶ÔÏó´´½¨Ëü£¬Èç¹ûʧ°Ü
   * ¾ÍÓÃMicrosoft.XMLHTTP¶ÔÏó
   */
  function createXMLHttpRequest(){
   if(window.XMLHttpRequest){ //Mozillaä¯ÀÀÆ÷
    xmlHttpRequest = new XMLHttpRequest();
   }else if(window.ActiveXObject){ //IEä¯ÀÀÆ÷
    try{
     xmlHttpRequest = new ActiveXObject("Msxm12.XMLHTTP");
   ......

FABridge½Ì³Ì(Flex+Ajax) 2

ʹÓÃjsÀ´²Ù×÷flex
Ê×ÏÈÔÚfademo.mxmlÖÐÉùÃ÷Ò»¸öbutton£¬²¢Ìí¼ÓÒ»¸öbtnClick·½·¨£º
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/halo" minWidth="0" minHeight="0" width="400" height="300" xmlns:bridge="bridge.*">
<fx:Declarations>
<bridge:FABridge/>
<!-- Place non-visual elements (e.g., services, value objects) here -->
</fx:Declarations>
<fx:Script>
<!--[CDATA[
import mx.controls.Alert;
public function btnClick():void
{
Alert.show("°´Å¥±»µã»÷ÁË","title");
}
]]-->
</fx:Script>
<s:TextInput x="160" y="96" id="txtName"/>
<s:Button x="218" y="139" label="°´Å¥" id=&q ......

FABridge½Ì³Ì(Flex+Ajax) 2

ʹÓÃjsÀ´²Ù×÷flex
Ê×ÏÈÔÚfademo.mxmlÖÐÉùÃ÷Ò»¸öbutton£¬²¢Ìí¼ÓÒ»¸öbtnClick·½·¨£º
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/halo" minWidth="0" minHeight="0" width="400" height="300" xmlns:bridge="bridge.*">
<fx:Declarations>
<bridge:FABridge/>
<!-- Place non-visual elements (e.g., services, value objects) here -->
</fx:Declarations>
<fx:Script>
<!--[CDATA[
import mx.controls.Alert;
public function btnClick():void
{
Alert.show("°´Å¥±»µã»÷ÁË","title");
}
]]-->
</fx:Script>
<s:TextInput x="160" y="96" id="txtName"/>
<s:Button x="218" y="139" label="°´Å¥" id=&q ......

³¬¿áµÄAjax¿ò¼Ü£ºqooxdoo1.0·¢²¼

qooxdooÊÇÒ»¸ö×ÔÓÉÃâ·ÑµÄAjax GUI¿ò¼Ü£¬ÏÖÔÚËüµÄ1.0°æ±¾ÌṩÁËÏÂÔØ¡£ qooxdooµÄ·¢ÒôΪ ['ku:ksdu:],£¬ËüÌṩÁËʹÓÃJavaScriptʵÏÖ¼¸ºõËùÓУ¬½¨Á¢Àà×ÀÃæWebÓ¦ÓóÌÐòËùÐèµÄÓû§½çÃæ¡£¸ù¾Ý¿ª·¢ÕßHTML£¬ CSS»ò DOM֪ʶ²»ÊDZØÐèµÄ¡£Õâ¸ö¼Ü¹¹¿ÉÒÔÔËÐÐÔÚËùÓÐÖ÷Á÷µÄä¯ÀÀÆ÷ÉÏ£¬ÀýÈ磺Internet Explorer, Firefox, Safari, OperaºÍChrome¡£
ÔÚ¹Ù·½ÍøÕ¾£¬ÌṩÁËʾÀýÓ¦ÓóÌÐò²Ù×÷»·¾³£¬Äã¿ÉÒÔÔÚÏß»ñµÃqooxdooµÄÑÝʾ£¬ÑÝʾƽ̨ÌṩÁ˱í¸ñ¡¢±íµ¥¡¢Ê÷¡¢Êý¾ÝÀ¦°ó¡¢Ö÷Ìâ¡¢ÓïÑÔ¡¢ÍÏÀ­²Ù×÷¡¢html±à¼­Æ÷µÈ¹¦ÄÜ¡£
qooxdoo²ÉÓÃË«ÖØÐí¿É·½Ê½£¬ÔÊÐíÓû§Ñ¡ÔñLGPL»òEPLÐí¿ÉÖ¤¡£
ÑÝʾƽ̨£ºhttp://demo.qooxdoo.org/1.0/demobrowser/
ÏÂÔØ£ºqooxdoo1.0 ......

AJaxʵÏÖ¾Ö²¿Ë¢Ð¹¦ÄܵÄÁôÑÔ°å

¹«Ë¾×î½ü¸øÎÒÒ»¸öÈÎÎñ£º°ÑÒ»¸öÓÃiframe×öµÄÁôÑÔ°å¸ÄдÓÃAjax×ö£¬ÕâÑù×öµÄÔ­ÒòÊÇ£º¶ÔËÑË÷ÒýÇæµÄÓÅ»¯¡£ËäÈ»ºÜÔç¾ÍÖªµÀAjax¿ÉÒÔ×ö¾Ö²¿Ë¢Ð£¬µ«ÒòΪ×Ô¼ºÊǸձÏÒµÈëÖ°µÄ²ËÄñ£¬½ö½öÊÇÖªµÀÓÐÕâô¸ö¼¼Êõ¿ÉÒÔ×öÕâÑùÒ»¹¦ÄܶøÒÑ¡£Ò»±ßѧһ±ß×ö¡£ÏÖÔÚÕ⹦ÄÜ»¹Ã»ÍêȫŪºÃ£¬ÏÈ×ܽáÏÂ˼·ÒÔ±ã¸üºÃµÄѧϰ£º
ÒµÎñÂß¼­£ºÔÚÏßÑÐÌֻᣬÌáÎÊÕßÒ³ÃæÁ¢¼´¾Ö²¿Ë¢Ð£¬ÆäËûÓû§´ò¿ªÁËÕâ¸öÒ³Ã涨ʱ¾Ö²¿Ë¢Ð¡£
ËùÓÃ֪ʶ£ºajax  ¶¨Ê±Æ÷ ÍùÖ÷Ò³Ãæ¾Ö²¿divÀïÒì²½¼ÓÔؽøÒ»¸öÏÔʾÌáÎÊÕßËùÌáÎÊÌâÁбíµÄÒ³Ãæ
´úÂ룺
//Çå¿ÕÊäÈë¿ò£¬ÌáʾÒÑÊäÈë
function submitQA() {
    document.qasubmit.body.value = "";
    qahint.innerHTML = "<b>¡¡ÄúµÄ·¢ÑÔÒѾ­Ìá½»£¬»¶Ó­¼ÌÐø·¢ÑÔ¡£Ð»Ð»¡£</b>"
}
//µã»÷ÎÊÌâÌá½»µ÷ÓÃ
function readySubmit() {
    setTimeout(submitQA, 1000);
    setTimeout(function(){assign('tv');} , 1500);
}
//Òì²½¼ÓÔØÊý¾Ý´¦ÀíÒ³Ãæ
function load(id) {
    assign(id);
    setTimeout(function () { load(id);},5000);
}
//ÍùÖ÷Ò³div²åÈë ......

Ajax¼ì²â×¢²áÓû§ÊÇ·ñ´æÔÚ(.NET)

HTML´úÂëÈçÏÂ:
LoginValidate.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="LoginValidate.aspx.cs" Inherits="LoginValidate" %>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>ÑéÖ¤Óû§ÃûÊÇ·ñ´æÔÚ</title>
<script type="text/javascript">
    var xmlHttp;
    function createXMLHttpRequest()
    {
        if(window.ActiveXObject)
        {
            xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
        }
        else if(window.XMLHttpRequest)
        {
            xmlHttp = new XMLHttpRequest();
        ......
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