Free Ebook Programming Entity Framework: DbContext: Querying, Changing, and Validating Your Data with Entity Framework
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Programming Entity Framework: DbContext: Querying, Changing, and Validating Your Data with Entity Framework
Free Ebook Programming Entity Framework: DbContext: Querying, Changing, and Validating Your Data with Entity Framework
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About the Author
Julia Lerman is the leading independent authority on the Entity Framework and has been using and teaching the technology since its inception in 2006. She is well known in the .NET community as a Microsoft MVP, ASPInsider, and INETA Speaker. Julia is a frequent presenter at technical conferences around the world and writes articles for many well-known technical publications including the Data Points column in MSDN Magazine.Julia lives in Vermont with her husband, Rich, and gigantic dog, Sampson, where she runs the Vermont.NET User Group. You can read her blog at www.thedatafarm.com/blog and follow her on Twitter at julielerman.Rowan is based in Seattle, Washington and works as a Program Manager for the ADO.Net Entity Framework team at Microsoft. Prior to moving to the US he resided in the small state of Tasmania in Australia. Rowan speaks at technical conferences and blogs at http://romiller.com. Outside of technology Rowan's passions include snowboarding, mountain biking, horse riding, rock climbing and pretty much anything else that involves being active. The primary focus of his life, however, is to follow Jesus.
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Product details
Paperback: 258 pages
Publisher: O'Reilly Media; 1 edition (March 10, 2012)
Language: English
ISBN-10: 9781449312961
ISBN-13: 978-1449312961
ASIN: 1449312969
Product Dimensions:
7 x 0.5 x 9.2 inches
Shipping Weight: 14.4 ounces (View shipping rates and policies)
Average Customer Review:
4.0 out of 5 stars
38 customer reviews
Amazon Best Sellers Rank:
#247,197 in Books (See Top 100 in Books)
The book is well presented, and helped fill in knowledge gaps left after rushing to get out my first EF app. On a deeper level though, I have to comment that it is frustrating to have the framework experts choose to break up the framework topics into a number of separate and out-of-phase books. e.g. here is a book covering just one class? Could there be afew more chapters covering the best practices in codefirst, etc? Is this the ORM of the Microsoft powerhouse, or of two men in a garage?
A technical book without an index! Really?!? The book is otherwise a good resource. But seriously, no index?!?
I purchased the first EF book based on EF4 and it was good but more confusing when trying to implement EF5 with DbContext. This book was helpful however it would help to have a reference in the back of the book to look up different topics. As far as I can tell it is the only book out there on EF5 and DbContext. I am currently working with EF5 on a project. After I completely implement the website using EF5 I will make a decision if I will ever use another ORM or not. I may go back to rolling my own SQL Stored Procedures, DAL, and BLL as I have done many times in the past which gives me more control and I fully understand the full data mapping. The only benefit to any ORM is time it should save to develop a project. Stored Procedures is the foundation anyway of any ORM plus it protects from injection. I have used other concepts from MS for data access and they were not bad but difficult to work with some times. I was trying to break up my project into layers and found it difficult with EF5 so I started over and put things into one project until I fully understand how to work with it better. I intend to breakup the project into layers later if I discover the need for scale-ability. Trying to implement repository pattern and unit of work is confusing since I have not tried those concepts in the past and also since EF is suppose to be doing that behind the scenes; it seems kind of redundant to implement some type of patterns if EF is already implementing a pattern. I like to use a DAL and a BLL. So EF should take the place of the DAL. I do like the concept of generating from the database plus update from the database. I am not sure any ORM will meet anyone's plug and play needs. The book is written to walk one through the concepts step by step but I tend to jump around technical books looking for instant answers to immediate problems. Mainly because I don't have the time to walk through a text book page by page I have projects to complete. I am not a full time developer so I look for quick answers to problems as I go along. I wish this book would give a fully layered example of using a DAL and BLL to also include a N-tier example with DAL and BLL. I rated this book 4 stars as it did give me some answers but it is the only book out there for EF5 using DbContext. I am using VS 2012 purposely for running EF5 and it is buggy. I spent many days with it crashing on me before I got it stable. I am in with VS 2012 for the long haul as it should get better.
This book is well written and has excellent detail. The main issue is that much of the detail of the book relies on owning or having read the previous book programming_entity_framework_2nd_edition. Together they give very good insight into DbContext and Entity Framework. I'm not sure how much can be taken away from this text without programming_entity_framework_2nd_edition so that is the only reason for not giving a 5 star rating.
Would highly recommend this as a starting point to EF. Will give you what you need to know to get started and should be a good reference through intermediate EF programming.
This is a really nice book, clear and full of details about Entity Framework and DbContext. It helps you to understand many concepts of EF's design and how to apply it in your code.For who are using DbContext, due the fact it is easy to start to use, but still not have a great understanding about how it works under the hood, I think this book can be a good start.
An excellent book. Delivered clean and new.
Great for learning more about entity.
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