Download Adding Ajax by Shelley Powers PDF

By Shelley Powers

Including Ajax is perfect for the intermediate to complex internet builders between you who're frightened and harassed approximately Ajax, pondering that it'll strength you to begin over together with your craft. This clean consultant will calm these fears via supplying a wholly new method of the subject. instead of introduce Ajax as a very new approach of doing issues, this e-book exhibits you the way to combine Ajax with current websites, and does so by way of development to Ajax instead of construction from an Ajax starting place. by means of interpreting this e-book, you'll learn the way Ajax permits you to create "rich" internet functions, yet extra importantly, you will see how the practices you persist with feed correct into Ajax - and that, ordinarily, you already paintings with the applied sciences concerned. including bits and items frequently makes even more feel than tearing down and rebuilding, and you can learn how to combine Ajax together with your traditional strategy. on the finish of including Ajax, there is mirrored image on no matter if beginning over should be a enjoyable suggestion, yet through then you definitely could be even more ok with it.

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Extra resources for Adding Ajax

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Progressive Enhancement Versus Massive Overhaul | 27 A summary of what’s been covered in this chapter gives us the following set of steps for simplifying and preparing for your Ajax development: 1. Validate the existing pages for target XHTML and CSS specifications and make required corrections. 2. Convert old HTML table layouts to CSS/XHTML, clean up deprecated or outof-date HTML elements, and convert HTML to XHTML. 3. Define a plan for adding Ajax effects, including which sections of the site are going to be completely rewritten, which will be modified, and which effects will be incorporated.

It’s the same CSS file used for all of the drink examples with an addition described later in this chapter. Example 2-2. jpg) no-repeat fixed top left; color: #000; } body { font-family: Verdana, Arial, sans-serif; } form { color: #000; padding: 20px; text-align: left; } h1 { margin-left: 380px; } label { display: block; margin-bottom: 10px; } 32 | Chapter 2: The Ajax Bits Example 2-2. CSS for all of the Drinks applications in this chapter (continued) #drinkblock { margin-left: 380px; width: 500px; } The code, markup, and style settings represented in Examples 2-1 and 2-2 form a perfectly good application, but if the functionality is to be used by another application, it must be duplicated.

One of the options I listed was a drop-down menu that popped open either when the mouse was over a top-level menu item or when the item was clicked—a quite common use of DHTML frequently extended to Ajax. Surprisingly, the behavior of the drop-down menu wasn’t especially interesting to my readers. They tended to be more interested in having control over their interaction with the site than they were controlling the navigation between pages. Understanding Your Client Base | 21 Now, if I had a more complex site structure, the menu might have been more essential.

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