I hardly ever review books and probably wouldn't have bothered this time if it were not for an email from Amazon seeking one. I decided to go ahead with a review because this book really filled a need I had for working with AJAX for the first time. It had me up and running in very short order. Did it go over a couple things along the way that I already knew? Yes. But I didn't mind it in that it treated all topics in an intelligent manner and helped explain where AJAX fit into the broader world of web development. Definitely geared for .NET. That's what I wanted. If that's what you're looking for, you won't be disappointed.

I had done some little test applications utilizing Ajax and/or Atlas prior to reading this book, and I wanted this book to really give a solid base from which to move forward with.

Mr. Woolston's writing style is personable but not too over the top. One thing I did not like about the writing style is the manner in which code is laid out at times. For instance, with many of the sample applications, Mr. Woolston will dump about 5-6 pages of code into the book and then work towards restating it in part afterwards with some explanation. I can see where it would be useful if not in front of the sample code/a PC, but in reality this book will not be useful if not in front of a computer working on the examples.

There are other times where some of the content is not really useful in furthering education about Ajax and certain examples it feels are stretched to make the chapters longer. I think there was likely a challenge in filling out a reasonable sized book because simply put - the fundamental elements of Ajax aren't that complex. I found myself done with the book in a period of less than a week.

Those things said, after reading the book I can certainly say the overall content has an excellent "perspective of the landscape". From a history of Ajax to a little primer on Javascript, CSS/DOM, and the XmlHttpRequest, he moves forward to examples of Ajax demonstrating the technology with an Ajax framework named Anthem. The main meat of the book are really these examples, where practice implements the ideas from the prior chapters.

Lastly, the book closes with a few chapters covering security, testing, usability, performance, and a token chapter on Atlas.

One other element that I appreciated in this book was the identification of a few free tools out there to aid in Ajax development. Those tools in their own right would have definitely contributed to some time savings a week or two ago when I was struggling with a couple DOM/CSS issues prior to reading this book!

In summary, perhaps a book stretched to fit it's cover but nevertheless a very useful read to me and I would certainly recommend it.

i didnot think that i would like this book because for me apress is famous with their books having lacking style of examples. Normally you find yourself lost in the examples eventough the topic is covered very well.
This book is different than others absolutely; it starts with what is ajax; and why ajax and with simple examples.
if you dont know javascript; it is still ok because one of the chapters covers javascript; so you can learn enough javascript to handle the simple ajax pages.
Before diving into ajax; it tells you about different ajax libraries; so i like this part too; you will have an idea about other ajax libraries too.
I could not run the first example which is the easiest one and i struggle a lot to solve it;but most of the codes in the book is easy to implement.
And guess what; as you can see from the title; the book is for .NET developers; so if you are a .NET developer; this is right book to buy.
It is not like other apress books that have coding examples problem. the sequence for the chapter makes the book easy to follow.
After reading this book; i start reading some tutorials about Atlas ( which is basically Microsoft's Ajax ) and it really helps you to understand atlas too;
If you like google maps; or virtual maps; this books has a suprise for you :)
i read 4-5 different books from apress and this one is the best; i will highly recommend this book to all .net developers who want to learn ajax with .net

About 3/4 done with this book. Today I just built my 1st Ajax feature in a few hours at work with the suff I learned. This books is a quick read with great examples works in both 1.1 and 2.0. Buy it!

Pro Ajax and the .NET 2.0 Platform gets high marks from me because it is concise, informative and easy to follow. After reading the first three chapters I had a clear understanding of what Ajax really is. Author Dan Woolston has extensive experience with AJAX and he seemed to share it all here without overwhelming this reader.

Woolston did not waste my time in getting me up to speed. In the first three chapters I learned how to write my own reusable (cross browser) JavaScript functions that will work together to execute an Ajax call.

Of course I might rely on one of the various existing frameworks to do this for me. However, now I know what's going on under the covers and I can make an informed decision about what Ajax to use and when. I know exactly what is happening when Ajax is implemented and why.The book also does a nice job of covering CSS and the DOM (document object model). As you know (or will know after reading), these combine with JavaScript to create the foundation of Ajax! Once you understand how they work together you'll know more about Ajax than 90% of your developer friends.

Excellent Feature #1: The overview of JavaScript, CSS and the DOM is fantastic. I really appreciated the fact that it was concise and dead-on accurate in addressing the specific elements that a .NET developer needs to understand in order to code Ajax.

Continuing on, after the book had me up to speed with Ajax, it went into n-tier design. This is important because, in theory, a programmer can go hog wild on Ajax and break tons of rules regarding sound application architecture. So I was impressed that Woolston transitioned directly into best-practices for how and when to use Ajax.

The first third of the book covers Ajax theory and best-practices. With Ajax, one size does not fit all. Therefore, chapter seven includes overviews of many popular Ajax frameworks including non .NET frameworks such as Ruby on Rails, WebORB, xajax (PHP) and Direct Web Remoting (Java). It also covers .NET frameworks including Ajax.NET, Anthem and Atlas.

The other two thirds of the book are devoted to Ajax programming concepts. The author uses the Anthem framework for most of this coding. Anthem is an open-source, .NET framework in C# that is compatible with ASP.NET 1.1 and 2.0. It is extremely lightweight, requiring only one class file for core functionality.

Excellent Feature #2: The book's code walkthroughs are based on a fully functional n-tier sample application that you can download free. The sample application uses the AdventureWorks database which is also a free download from Microsoft if you don't already have access to it.

You might think that some .NET features and topics lend themselves to Ajax technology and therefore should be covered in more detail. You'd be right. Woolston sets aside complete chapters on Web services, Custom Controls, ASP.NET Security and Web Parts.

Excellent Feature #3: When you're done learning how to build your own Ajax, there are two chapters devoted to debugging and testing Ajax.

One of the last chapters was my favorite. Chapter 19 is all about usability. As you may know, Ajax solves many usability problems. But can also create new ones. Woolston addresses the good, the bad and the ugly.

The book provides ideas and examples of good Ajax. The author has test-driven many Ajax controls and shares his trials and tribulations. This feedback no doubt will save developers valuable time.

The book also discusses potential pitfalls of using Ajax. Woolston tackles cross-browser compatibility issues and how to best overcome them. He also talks about how to deal with the browser's back button. How to handle browsers with disabled JavaScript and how to work past the problem of pageshifting.

Some of the other usability topics covered in Chapter 19 include Ajax menus, bookmarking, type-aheads, connected controls, code visibility and page paradigms.

Suffices to say this book packs a big Ajax punch. I highly recommend it to any of my peers who are interested in building Ajax functionality into their web applications. This book is applicable to .NET developers who are working with ASP.NET 1.1 or 2.0. In my opinion, web developers of any skill level will find it helpful.