build your own ajax web applications PHẦN 9 pptx

... right, as you run your searches, the page URI displayed in the location bar will change like so: webservices2.html webservices2.html#0 webservices2.html#1 webservices2.html#2 webservices2.html#3 This ... asynchronous connections that AJAX makes possible gives developers some very powerful pos- sibilities in terms of the new features we can build into web applications. AJAX Chess Ga...

Ngày tải lên: 12/08/2014, 09:21

... { color: #3 39; border: 1px solid #cce; } .errPrompt { color: #93 3; 98 Chapter 4: AJAX and POST Requests Licensed to siowchen@darke.biz .done { color:# 393 ; border:1px solid # 393 ; } Making ... left; } .processing { color: #3 39; border: 1px solid #333 399 ; } .done { color: # 393 ; border: 1px solid # 393 ; } .bar { background: #ddf; float: left; } 82 Chapter 3: The “A” i...

Ngày tải lên: 12/08/2014, 09:21

... specific to AJAX applications. Any web app that provides multiple people with access to the same data will experience concurrency issues, but using AJAX may magnify its effects in your users’ ... the content’s state on the server. This is a bigger issue with AJAX applications than it is with old-fashioned web apps, because AJAX applications make changes to data in small pie...

Ngày tải lên: 12/08/2014, 09:21

... and show you how to develop AJAX web applications of your own. AJAX Web Applications AJAX can be a great solution for many web development projects—it can empower web apps to step up and take ... Effect 190 AJAX Fat-client Code 191 Legacy Browsers and Accessibility 191 Usability: the Back Button Problem 192 Debugging Client-side AJAX 194 Further Reading 196 Cross...

Ngày tải lên: 12/08/2014, 09:21

... to create accessible user interfaces for your AJAX applications. Just as you wouldn’t develop your site in Firefox and deploy it without testing it in your other supported browsers (especially ... thing you can do to make your code work in screen readers is, of course, to sit down and use your app with screen readers. Here’s a brief list of some commercial screen reader applica...

Ngày tải lên: 12/08/2014, 09:21

... Software and Microsoft in 199 5. The idea of XML-RPC is that your code can call functions on another machine, and get the result back just as if it were calling code inside your own application. The ... specific to AJAX applications. Any web app that provides multiple people with access to the same data will experience concurrency issues, but using AJAX may magnify its effects in...

Ngày tải lên: 12/08/2014, 09:21

... that you’ve seen a few AJAX applications at work, you might have an idea of another potential problem with AJAX- style web applications: the process of making updates to a web page in small pieces ... shared by many, many people who have used AJAX applications. Your goal as an AJAX application developer should be to eliminate that possibility by using AJAX only in situation...

Ngày tải lên: 12/08/2014, 09:21

... search history. Building your own Back Button The most straightforward way to solve the Back button problem is to add your own navigation right into the application—to put your own Back and Forward buttons ... is To get your own keys, you’ll need to sign up on eBay’s Developers’ Program web site. 6 Once you’ve signed up, instructions on how to get your keys will be emaile...

Ngày tải lên: 12/08/2014, 09:21

... the one shown in Figure 3.3, or you see the timeout message shown in Figure 3.4. Figure 3.3. A response received by your AJAX application Don’t worry if you receive the timeout message shown in ... appmonitor2.html in your web browser, click Start, and wait for fakeserver.php to wake from its sleep and send ok back to your page. You can expect one of two outcomes: either a response...

Ngày tải lên: 12/08/2014, 09:21

... left; } .processing { color: #3 39; border: 1px solid #333 399 ; } .done { color: # 393 ; border: 1px solid # 393 ; } .bar { background: #ddf; float: left; } 82 Chapter 3: The “A” in AJAX Licensed to siowchen@darke.biz CSV ... web application login By AJAX- ifying a web application’s login form you can provide your users an ex- perience that’s much closer to that of a traditio...

Ngày tải lên: 12/08/2014, 09:21