So How Do You Code an AJAX Web Page?
PetManimal writes "Computerworld has a long excerpt from a book by Edmond Woychowsky about how to code Web pages in AJAX. It gives a good explanation of how the technology works, and also has some visuals and code snippets that you can play with. From the article: 'Beyond the XMLHTTP Request object, which has been around for several years as a solution looking for a problem, there is nothing weird needed. Basically, it is how the individual pieces are put together. When they're put together in one way, it is nothing more than a pile of parts; however, when put together in another way, the monster essentially rises from its slab.'"
1. Open Visual Studio
2. Download and install the ATLAS framework
3. Wrap your webpage in an update panel
4. Add a script manager
5. Lather, rinse, and repeat
Seriously...one drag-and-drop and you'll never see another page refresh.
The article is very verbose. It has some value, I suppose - it helped me to decide I didn't want to buy the book. There are more concise introductions to Ajax here and here
There is also an interesting library of Javascript/ECMAscript functions to perform common Ajax chores here
Slashdot is currently testing just that among a small group over users. http://slashdot.org/faq/com-mod.shtml#cm120