ajax beginform

Do the web often need to consider the issue of session expiration, session expiration let the page jump to the login interface, but there is such a problem, when the page expires, the user request backstage way there are two kinds: traditional and asynchronous request way , the traditional way to solve, Request to the background, intercept to the expiration of the operation, direct jump, but the asynchronous request will not refresh the entire page, so the session expiration of the processing ca

Ajax Ajax is not omnipotent, in the appropriate situation to use AJAX, in order to give full play to its strengths, improve system performance and user experience, can not be abused for technology. Ajax is characterized by asynchronous interaction, dynamic updating of Web pages, so its scope is more interactive, freque

Now that you've become interested in Ajax, it's important to know when to use AJAX technology and when not. First, don't be afraid to try new methods in your application. We believe that almost every Web application can benefit from Ajax technology, but don't overdo it. It's appropriate to start with validation, but don't limit your initiative. You can, of course

Implement cross-origin ajax requests based on iframe to obtain ajax data in webpages. As we all know, ajax requests cannot be sent in different domains. the browser reports the following error: At the same time, the embedded iframe cannot perform cross-domain communication, that is, the iframe of different domains cannot read data from each other (of course, the

jquery is very well encapsulated in asynchronous commits, and it's very troublesome to work with Ajax to deal with compatibility issues between browsers, and jquery greatly simplifies our operations without having to think about the browser as a direct use!$.post, $.get is a simple method, if you want to deal with complex logic, still need to use the Jquery.ajax ()I. GENERAL format of $.ajax$.

Examples of Ajax asynchronous requests and ajax asynchronous requests The full name of AJAX is Asynchronous JavaScript and XML (Asynchronous JavaScript and XML ). AJAX is not a new programming language, but a new method that uses existing standards. Ajax is the art of exchan

The jQuery ajax global function handles ajax redirection after the session expires. For web applications, you often need to consider the issue of session expiration. When a session expires, the page will jump to the logon interface. However, there is a problem that when the page expires, there are two ways for users to request the background: traditional methods and asynchronous request methods can solve th

Ajax and ajax Technologies I. Working Principles of Ajax (Asynchronous JavaScript and XML) 1) AJAX adopts Asynchronous interaction. AJAX introduces an intermediate media between the user and the server, thus eliminating the disadvantages of processing-waiting-processing-wa

Ajax principles and encapsulation details, Ajax principles encapsulation details Ajax is used every day. The jquery library is well-encapsulated and easy to use. Let's take a look at its internal principles and manually encapsulate an Ajax library.For more information about ajax