Ajax

I. What is Ajax? AJAX is called "Asynchronous JavaScript and XML" (Asynchronous JavaScript and XML). Ajax is not a technology. It is actually several technologies, each of which has its own unique characteristics, combined into a powerful new

That is, when the onchange event in the regional drop-down box is triggered, the options of the agent drop-down box are changed accordingly. For example, if you select Hunan> Changsha, the agent drop-down box only displays the agent in Changsha.I

Obviously, AJax is a technology that uses JavaScript scripts to access data.AJAX enables asynchronous update of web pages. This means that the webpage is partially updated without reloading the entire webpage.XMLHttpRequest is the key to AJAX

The JS Code is as follows.After Ajax is called. A strange problem. The returned resultString value is "OK" but is not equal to the string "OK.What parameters are added to the results returned by Ajax calling out. println?The comments cannot be

Copy codeThe Code is as follows: Page 1Copy codeThe Code is as follows:Include ("include/db. inc ");$ Ws = $ _ GET ['worksheet '];If (empty ($ ws) | strlen ($ ws) // Echo 'oo ';Exit ();}$ Db = new db ();$ Str = '';$ SQL = "select * from user where

Client code mouseover. phpCopy codeThe Code is as follows: mouse suspension test Server code:Mouseover_check.phpCopy codeThe Code is as follows:Header ("Content-type: text/html; charset = gb2312 ");Header ("cache-control: no-cache,

Many companies are currently working on standard static pages. To enhance the user experience, AJax effects are often involved, and an important technology (Tool) used by AJax is designed) the XMLHttpRequest object. Today I learned some methods and

Below is my programHTML:Copy codeThe Code is as follows: No title page enter the name: Request. ashx:CodeCopy codeThe Code is as follows:Using System;Using System. Web;Public class request: IHttpHandler {Public void ProcessRequest (HttpContext

First, let's know how to create this object in javascript:Program codeVar xmlHttp = new XMLHttpRequest ();This line of simple code creates the XMLHttpRequest object in Mozilla, Firefox, Safari, Opera, and basically all non-Microsoft browsers that

Data to be asynchronously transmitted:Xml Code........Ajax asynchronous transmission code:Js CodeCopy codeThe Code is as follows:Var postData = "input =" + escape (inputJSON) + "& script =" + escape (xml) +"& FeedGeneral =" + escape (feedGeneral

GOOGLE maps use AJAX, but GOOGLE does not support AJAX, and most search engines do not. Therefore, if AJAX is used as a website, the website ranking and traffic can be imagined, although it may be supported by the development of search engines in

Improper handling may affect user experience and cause inexplicable problems.The following solutions are provided based on your own ideas and online reference. Each solution has different advantages and disadvantages. WelcomeLet's make

Objective: To directly use prototype because some modules in the blog program need to use ajax. js is relatively large (more than 40 k), and only uses the ajax function. Therefore, to reduce the download burden, you cannot change the prototype

Copy codeThe Code is as follows:// JavaScript DocumentFunction $ (id){Return document. getElementById (id );}Function echo (obj, html){$ (Obj). innerHTML = html;}Function fopen (obj){$ (Obj). style. display = "";}Function fclose (obj){$ (Obj). style.

Copy codeThe Code is as follows:Var xmlhttp = null;If (window. XMLHttpRequest ){Xmlhttp = new XMLHttpRequest ();}If (! Xmlhttp & window. ActiveXObject){Try{Xmlhttp = new ActiveXObject ("Msxml2.XMLHTTP. 5.0 ")}Catch (e){Try{Xmlhttp = new

Header ("Content-Type: text/html; charset = UTF-8 ");Function AjaxPage ($ Total, $ ListNub, $ CurrentPage, $ Url, $ AjaxAction, $ HalfPer = '', $ ViewId = ''){// Calculate the total number of pages$ TotalPage = @ ceil ($ Total/$ ListNub );$ Total = $

DEMO of the lib function application of the new website version DEMO of the new website-lib Function Application 1 2 3 4 5 6 7 8 drag window (1) close the window the Ricoh R series is well-known. The R7 launched last year is a perfect product,

In this case, the local cache is checked before AJAX is obtained. If the local cache already contains the same content, the remote server is not accessed. This operation can increase the speed and reduce the pressure on the server. But the

Create a navigation menu for product classification based on the customer's needs, which was previously read recursively using ASP. It is slow and consumes a lot of server resources. Simply change it to AJAX + XML. Share it with you. I hope you can

You can use the XMLHTTP component or IFRAME to obtain data from the same domain. This is simple because there is no cross-origin access permission problem.However, to access data in different domains, XMLHTTP does not have the permission to obtain