Download Beginning Ajax by Chris Ullman PDF

By Chris Ullman

Utilizing confirmed examples and explaining recommendations step-by-step, this booklet exhibits you the way development Ajax-enabled websites and purposes permits extra interactive person interfaces than ever earlier than. you will know about the variations in features among client-side and server-side improvement recommendations, in addition to how Ajax crosses this boundary. you are going to additionally become aware of how Ajax concepts should be summed up via styles (which are improvement versions that you will use repeatedly). With a mastery of those strategies, you possibly can breathe new existence into your sites.

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Additional info for Beginning Ajax

Example text

There are several nonstandard methods in IE, and items such as ActiveX controls can’t be used in the other browsers. You can add items to the DOM or alter them using a scripting language (such as JavaScript or VBScript), and they will appear on the page immediately. They are typically addressed in the format that addresses the page in hierarchical format, such as the following code, which addresses a button called “button” on a form and changes the text of that button. getElementById(“myTextbox”); You can then assign values to the variable you have created to alter the values.

Unfortunately, Gmail can’t easily be demonstrated without signing up, and currently signups are available only to a limited amount of countries. So, let’s take a look at some other examples. html). You have to sign up for an account to be able to see the tool in action, but because it’s free and photo manipulation tools on web applications are a great way of demonstrating Ajax techniques, you should look into it. Once you’ve logged in, you can access the tool via the Organize menu by selecting the Organize All Your Photos option (Figure 1-1).

One thing that makes me slightly reluctant to recommend this site for Ajax techniques is that auto-suggest boxes have a bad press with some users. They can be seen as intrusive or confusing or both. ” This has much to do with the code that does the “predicting” of what you’re going to type. In Google Suggest, this is a good application of the technique, but when using something similar to perform form validation, you should be careful not to intrude on the usability of the form. A simple error message will often suffice.

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