February 2007
Intermediate to advanced
65 pages
1h 10m
English
Content preview from AJAX and JavaServer™ FacesBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Form Completion
One of the prototypical Ajax use cases is form completion, where a user enters information in a field that causes other fields on the page to change. For example, we can use Ajax to react to the value entered into a Zip Code field, as shown in Figure 2.
Figure 2. Form completion (Top: User enters an unknown Zip Code. Bottom: User enters a known Zip Code.)
When the user leaves the Zip Code textfield, we send an Ajax request to the server, passing the current value of the Zip Code field as a request parameter. We associate the Zip Code field with the event handler like this:
The zipChanged function uses Prototype to send the Ajax ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.