Read e-book online Ajax: The Complete Reference PDF

By Thomas A. Powell

ISBN-10: 0071596623

ISBN-13: 9780071596626

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Additional info for Ajax: The Complete Reference

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If you do not account for network failures, the Ajax application will appear fragile and certainly not deliver on the promise of the desktop-like experience. Chapter 6 discusses such network concerns in great detail and wraps the solutions into a communications library that will be used to build example Ajax applications. Effects upon Traditional Web Architecture Typical Ajax applications will very likely sit on a single URL with updates happening within the page. This is very different from the architecture traditionally used on the Web where one URL is equated to one page or a particular state within the application.

Consider adding an invisible inline frame in the page, like this one: Now find this tag using a DOM call and set its src value to the server-side program that should be invoked along with a query string containing the data to be transmitted. setAttribute("src",url); It isn’t necessary to preload the iframe into the page, the DOM can be used to insert it dynamically. html), notice that your browser will likely show an indication of network activity, which may not be desirable.

Replace(/\%20/g, "+"); } Since this is quite a bit different from the other modifications of the rating example, the complete code for using iframes with POST is presented here for inspection. html. A screen capture that reveals what is happening behind the scenes in the example is shown in Figure 2-3. innerHTML = "Thank you for voting. You rated this question a " + ratingVal + ". value);"> Hate It - [ 1 2 3 4 5 ] - Love It

NOTE If you try to show the values of the iframe form yourself by making the frame visible, you may not see anything, depending on the browser in question and how you pause the submission.

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Ajax: The Complete Reference by Thomas A. Powell

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