At the Forge - Dojo Events and Ajax
Listing 3. hello.php
<? echo "Hello from the server!"; ?>
The button itself is defined as we might do with any button to which we expect to attach an event, with an id attribute. It sits inside of a very small HTML form, named “theForm”:
<form id="theForm"> <input type="button" id="theButton" value="Press here" /> </form>
Using Dojo events, we connect the button to a function (ajaxAlert):
Finally, our ajaxArgs object is bound, and we're off and running. Clicking on the button means the associated Dojo event is invoked, which is ajaxAlert. That function, thanks to dojo.io.bind, then sends its arguments to the defined URL and invokes the load function upon successful completion. This is surprisingly straightforward and opens up many possible avenues for using Ajax in applications.
The main source for information about Dojo, as well as Dojo software releases, is dojotoolkit.org. Documentation for the toolkit is still a bit sparse, but it has improved significantly in the last few months, and continued improvements seem likely, given Dojo's growing popularity. The main URL for Dojo documentation is at dojotoolkit.org/docs, and Dojo.book (the Wiki-based Dojo documentation) is at manual.dojotoolkit.org/index.html.
Finally, a noteworthy introduction to Dojo events is at www.dojotoolkit.org/docs/dojo_event_system.html.
Reuven M. Lerner, a longtime Web/database consultant, is a PhD candidate in Learning Sciences at Northwestern University in Evanston, Illinois. He currently lives with his wife and three children in Skokie, Illinois. You can read his Weblog at altneuland.lerner.co.il.
- since i have read the title i
2 hours 28 min ago
- Belanja Online Cari Voucher Diskon
2 hours 33 min ago
- The kernel doesn't really
14 hours 44 min ago
15 hours 15 min ago
15 hours 15 min ago
17 hours 20 min ago
- This should be very helpful
18 hours 34 min ago
- As much as I share your point
20 hours 54 min ago
- So girls had it better ?
1 day 25 min ago
- Reply to comment | Linux Journal
1 day 46 min ago