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Lawrence J. Tenny

Larry Tenny

Entity Framework 4.0 Recipes: A Problem-Solution Approach Paperback – Illustrated, 6 May 2010

by Larry Tenny (Author), Zeeshan Hirani (Author)

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Getting Started With Entity Framework
Entity Data Modeling Fundamentals
Querying an Entity Data Model
Using Entity Framework in ASP.NET
Loading Entities and Navigation Properties
Beyond the Basics with Modeling and Inheritance
Working with Object Services
Plain Old CLR Objects
Using the Entity Framework in N-Tier Applications
Stored Procedures
Functions
Customizing Entity Framework Objects
Improving Performance
Concurrency
Advanced Modeling

Print length

648 pages
Language

English
Publisher

Apress
Publication date

6 May 2010
Dimensions

20.32 x 3.71 x 24.77 cm
ISBN-10

1430227036
ISBN-13

978-1430227038
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Product description

About the Author

Larry Tenny has more than 20 years experience developing applications using a broad range of development tools primarily targeting the Microsoft platform. He has extensive .NET development experience. He has a Ph.D. in computer science from Indiana University.

Product details

Publisher ‏ : ‎ Apress; 1st ed. edition (6 May 2010)
Language ‏ : ‎ English
Paperback ‏ : ‎ 648 pages
ISBN-10 ‏ : ‎ 1430227036
ISBN-13 ‏ : ‎ 978-1430227038
Dimensions ‏ : ‎ 20.32 x 3.71 x 24.77 cm

Customer Reviews:
23 ratings

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Lawrence J. Tenny
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Larry Tenny
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Larry Tenny has more than 20 years of experience in developing applications using a broad range of development tools primarily targeting the Microsoft platform. He has extensive .NET development experience and a Ph.D. in Computer Science from Indiana University in the United States.
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Zeeshan Hirani
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Zeeshan Hirani is a longtime .NET and database developer. He currently works at a top Internet e-commerce site where he is involved in Microsoft technologies like Entity Framework,LINQ TO SQL,ASP.NET and Silverlight.He has extensive experience with many ORM and database technologies, which provides him with a unique perspective on Microsoft's Entity Framework. He has written several articles, maintains an influential Entity Framework blog, and is a frequent contributor to many .NET forums. He is a Microsoft MVP.
He has a Bachelors in Information Systems and is currently getting his MBA from University of Dallas.
For more updates on his work, visit his blog at below address..
http://weblogs.asp.net/zeeshanhirani
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Paul1307

An excellent "How To..."

Reviewed in the United States on 24 March 2012

Verified Purchase

I learned more in the first 25 pages than I had trying to plow through the 1,000 or so pages of the MS (un)help(ful)section of the .NET 4.0 documentation, so definitely, I highly recommend this book. It is, as the title notes, essentially a cookbook of individual recipes for handling a myriad of tasks using Entity Framework. It does not contain deep explanations of the origins or genesis of EF, nor does it offer apologies for Entity Framework's shortcomings. It just shows you how to get things done using simple code examples along with brief but thorough and concise explanations of "the how." You can learn an awful lot just by seeing code that performs a task simply and elegantly with little fuss. Good coding should always emphasize simplicity and maintainability over cleverness and the programmer's bravado, and the examples in this book are clear and simple, and easily understood even for someone inexperienced in Entity Framework.

While some comments noted that there is some confusion in presenting both a LINQ and Entity SQL solutions I suspect their intent was to provide solutions for those already familiar with LINQ as well as a solution in Entity SQL for those who have never been exposed to it. For those unfamiliar with either technique, I think the code speaks for itself: to me it's obvious that Entity SQL is simply more concise, "tighter" in terms of verbiage and clearer in its intent; more intuitive. Those more familiar with LINQ might disagree, but then, that's why the solutions are presented using both techniques: your choice. As for "confusing," or which one's "right," both work equally well, and are nicely contrasted with one another. I'd venture, however, that the MS future is evolving towards Entity SQL and away from LINQ; clearly that's where development is ongoing. So be it.

Clearly, Entity Framework is an evolving technology. This book address the future where "a database" may in fact only be a metaphor for a multitude of storage mechanisms and devices physically dispersed and diverse. EF handles that through the conceptual model, and this book gives you techniques for communicating with that conceptual model; MS handles all the rest. The complexity of diverse storage is sidestepped, or more to the point, simply ignored, as the code examples in the book simply and elegantly demonstrate communication with the conceptual model. For those looking towards the future of communicating with data, I highly recommend this book.

One person found this helpful

D. G.

A must-have book for any .NET developer

Reviewed in the United States on 17 July 2010

Verified Purchase

Some people are born to be great teachers.
The authors of this book are definitely among them.

I have only a very brief hands-on exposure to EF (Entity Framework), and it was for .NET 3.5.
Among other things, I had to change the foreign key values in a self-referencing SQL Server table so that the foreign key now "points" to another primary key. It's very similar to the classic example of moving an entire subtree in a hierarchy structure under another "parent" (into another subtree).
The project was on an extremely tight schedule, and after wasting an hour or so trying to figure out the EntityKey stuff, I gave up and used good old classic ADO.NET (SqlConnection, SqlCommand, etc.).
The problem was caused by one of the very annoying deficiencies in EF 3.5, which were fixed by Microsoft in the EF 4.0 (.NET 4.0) release, along with quite a few other improvements.

Essentially, EF is a very compelling replacement for "classic" ADO.NET, and even for the not-so-old LINQ-to-SQL.

This book contains a lot of short concise "recipes" for practically every conceivable "real-world" situation you might have when using a database from .NET.
Needless to say, it has an example for my situation (described above), too.

Unlike most other technical books, this one has a much more practical structure:
1. A short Chapter 1 gives you an overview of the basic concepts and principles of EF 4.0.
2 - ... and then you jump right into writing real code!..

You can use this book as a manual for a thorough study of Entity Framework 4.
And/or, you can use it as [probably, the best] reference material for your own project challenges.

Each recipe is only a few pages long (mostly, code snippets), and it contains just enough theory for a novice to understand the code sample.

At the same time that the book can be used as a reference, it also walks you through the entire EF from simple stuff to more complex and less-often used scenarios.

So far, I'm approximately 1/4 through the book, and I can't stop reading it. By the way, it's also a very easy read.

I would have given this book 10 stars, but regretfully, 5 is the maximum.

My recommendation: if you are a .NET developer, get this book. You'll love it.

4 people found this helpful

Javaman

Nicely written book

Reviewed in the United States on 9 February 2011

Verified Purchase

I'm typically not a fan of these types of books, scenario driven with solutions being shown. That's because I don't want to be shown how to do something, rather I want to know why it's done so I can do it on my own anytime I want.

This book is an exception to that rule, partially because EF 4.0 is so simple to use that you really don't have a huge mystery hanging over you as to what's it's there to do. But indeed, there are lots of little things that you can do to make the experience much better. This book shows those tweaks and explains them well.

The book appears to be well organized, in that the examples start off with what would be the most common problems encountered. Then it moves on into more complex stuff as you read. The authors clearly have a command of EF 4.0 and did a good job on this book.

Buy it!

Viktar Karpach

One of the best .NET books

Reviewed in the United States on 30 July 2010

Verified Purchase

This is excellent book with a lot real life examples. Usually developers think in terms of database. Table maps to an object, LINQ to SQL kind of approach.

However EF4.0 gives you ability to map your objects to part of the table or to multiple tables. It shows you how inheritance can be represented in database.

Even if you not going to use EF in your working environment, still this book gives you a lot of ideas and best practices to think of.

2 people found this helpful

Michael W. Schellenberger

Learn by Example Only

Reviewed in the United States on 19 December 2010

Verified Purchase

The book has great recipes but for me it needs another chapter or 2 on the EF terminology. As the book states there is a lot of terminology rotating around data modeling. I have been a developer for 20+ years mostly all with MS technologies and I must say I was somewhat overwhelmed with this new data modeling terminology.

I must admit I am more a theory kind of guy and prefer to know how things work thus I am able to resolve new problems as they might arise. I also know that sometimes knowing all of the theory can be bad in the sense that it takes longer to get some work done while learning.

I have walked away from this book with more questions about the EF and data modeling than I started with. Yes I have new knowledge of EF and modeling but I wonder how correct it is. Trying to infer the real meaning of these new (to a coder) data modeling patterns from a click here, drag there type experience leaves me wondering.

I would suggest a book that covers more theory prior to this if you are new to the EF.

4 people found this helpful

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Entity Framework 4.0 Recipes: A Problem-Solution Approach Paperback – Illustrated, 6 May 2010

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About the authors

Lawrence J. Tenny

Larry Tenny

Zeeshan Hirani

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