Foundation Flex for Developers: Data-Driven Applications with PHP, ASP.NET, ColdFusion, and LCDS [ペーパーバック]

This is not a good book to learn from unless you learn best by thinking very deeply about what the teacher says and correcting errors.
I am up to Page 27 and have worked through the first example with FlexBuilder3. The book is riddled with problems, including typographical errors, imprecise explanations, and even a conceptual error.

Example page 21: click="txtResult.text= = String(cboUnit.selectedItem.data ..."
While reading this I wasted about two minutes trying to puzzle out why there would be two equals signs in a row before deciding that this is probably a typo. By working the example on my computer I confirmed this.

Example page 23: The book refers to both a NumberValidator and NumericValidator.
An engaged student will have to wonder, are there two different kinds of Validator, or is the teacher lazy? No one wants a lazy teacher but that appears to be the case here.

Example page 23: "The CDATA declaration prevents Flex Builder from parsing the contents of the..."
I believe this is an imprecision that can seriously throw someone off who is trying to learn this stuff. In fact the CDATA declaration prevents the *compiler* from parsing the contents of the... Flex Builder only gets involved because it happens to invoke the compiler, but the compiler is a separate agent here, and the critical one that should have been named.

Example page 26: "This event object will also be dispatched when the user clicks the Convert button because the validator uses the click TriggerEvent."
I don't mean to be an impertinent student, but I would suggest that this is just plain wrong and it reveals a conceptual misunderstanding on the author's part. In fact, in the code the author presents, the validator is invoked by an explicit call to a validate() method; the correct validation is done because the NumberValidator object has its source property set to the TextInput object. The TriggerEvent is not necessary, as I verified by commenting out this part of the author's code.

To be generous, this book is indeed teaching me Flex, but by a very peculiar pedagogical approach. Maybe indeed one learns better by being forced to think very hard about the validity of every single statement and sentence. What worries me is if this author launches off on the wrong track with regard to coding style and program architecture. Since I now know that I cannot trust this author, I'm not sure how much longer I'll stick with the book.

My recommendation: find a better book.

To be honest, i was really excited when i saw that title "data driven applications with php, asp.net, coldfusion and lcds". what do you expect from a 600 page book that contains less than 90 pages on the topic it portrays. i have always liked the author but she disappointed me this time. its a good book yes...but if you are looking into getting deep into data driven flex applications using server side technologies like php, coldfusion etc...look else where.

I didn't enjoy this book for two reasons.
Firstly, if you are at all familiar with Flex, it was very wordy and basic. This meant that you had to spend a lot of time scanning over stuff to make sure it wasn't covering anything that you didn't already know.
Secondly, it really didn't explore the XML/AMF options or validation or data integrity or performance or data dictionary techniques. I was left with the feeling that the authors had never been involved in a large data oriented software development project.
So on the hole, rather a waste of time for me. I suspect that if you come from a Flash design background and want to move across to systems development, this might be a useful resource.