build your own ajax web applications PHẦN 4 pot

... to siowchen@darke.biz An Application Login Figure 4. 1. The 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 ... in the web applic- ation context, is also known as “unobtrusive DHTML”) should underpin the design of our code. This principle proposes that we should build our app’s more 90 Chapter 4...

Ngày tải lên: 12/08/2014, 09:21

... extra effort on your part can save your users significant time and effort in the long run. Indeed, it’s this kind of attention to usability detail that separates the good AJAX applications from ... padding-top: 24px; } #uiDiv { width: 360px; height: 220px; padding: 24px; background: #eeeeee; border: 1px solid #dddddd; margin: auto; } #formDiv { width: 300px; 92 Chapter 4:...

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

... 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 ... xi 1. AJAX: the Overview 1 2. Basic XMLHttpRequest 13 3. The “A” in AJAX 41 4. AJAX and POST Requests 85 5. Broader AJAX with Edit-in-place 129 6. Web Services and Sli...

Ngày tải lên: 12/08/2014, 09:21

... in your web browser and try to log in with bogus details. You should see the animated dots, followed by the “Could not verify your login information” message shown in Figure 4. 4. Figure 4. 4. ... 230px; float: left; } The end result, shown in Figure 4. 6, is a form that looks identical to the one built using a single large table. 1 14 Chapter 4: AJAX and POST Requests Licensed...

Ngày tải lên: 12/08/2014, 09:21

... content to be locked, 1 64 Chapter 5: Broader AJAX with Edit-in-place Licensed to siowchen@darke.biz web “mashup” that displays the location of the best real estate deals in your town with Google Maps. Slide-and-hide ... 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 mag...

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 ... users of your AJAX app know that the page is communicating with the server? Well, instead of the old spinning globe or waving flag animations that display in the browser chrome, AJAX a...

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

... 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