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Entity Framework 4.0 Recipes: A Problem-Solution Approach
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Entity Framework 4.0 Recipes provides an exhaustive collection of ready-to-use code solutions for Microsoft's Entity framework, Microsoft's vision for the future of data access. Entity framework is a model-centric data access platform with an ocean of new concepts and patterns for developers to learn. With this book, you will learn the core concepts of Entity framework through a broad range of clear and concise solutions to everyday data access tasks. Armed with this experience, you will be ready to dive deep into Entity framework, experiment with new approaches, and develop ways to solve even the most difficult data access challenges. If you are a developer who likes to learn by example, then this is the right book for you. * Gives ready-to-use, real-world recipes to help you with everyday tasks * Provides guideposts for learning core concepts * Maps out key landmarks for experimenting with your own solutions What you'll learn * Solve the most common data access problems using Entity framework. * Implement basic data access design patterns using Entity framework. * Seamlessly model your solutions across both code and data. * Improve data access performance. * Use data binding to simplify and reduce your code. * Leverage the recipes to empower your own exploration of Entity framework. Who this book is for This book is for anyone learning Microsoft's Entity framework - Microsoft's primary data access platform. If you have ever struggled to learn a new technology, programming model, or way of doing something, you know how helpful simple, real-world examples can be. For the beginning developer, this book provides concrete examples for common data access tasks. For developers with experience with previous Microsoft access platforms, this book provides a task-by-task mapping between previous approaches and the patterns used in Entity framework. Table of Contents * Getting Started With Entity Framework * Entity Data Modeling Fundamentals * Querying an Entity Data Model * Using Entity Framework in ASPNET * 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
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23 von 25 Kunden fanden die folgende Rezension hilfreich
Don't buy the Kindle version....
21. Januar 2011
Format:Kindle Edition|Von Amazon bestätigter Kauf
The Kindle version is so incomplete as to be completely worthless. Almost none of the images or example code that is referenced made it into the Kindle version from the print version.
11 von 12 Kunden fanden die folgende Rezension hilfreich
Excellent book with great coverage of Entity Framework 4.0
3. Juni 2010
Format:Taschenbuch|Von Amazon bestätigter Kauf
This is absolutely the book to have if you are programming with Entity Framework. This book covers all kinds modeling scenarios, improving performance (this was really important for me), querying using both linq and entity SQL, POCO, n-tier applications, and a bunch of other stuff.
The cool thing about this book is that it's full of examples, tons of code that actually works, and has a bunch of stuff I've never seen anywhere else about EF.
The book is very well organized and the author has a good writing style. Everything is right to the point.
I just do not think you can do without this book if you are going to do anything besides play around with the Entity Framework.
The cool thing about this book is that it's full of examples, tons of code that actually works, and has a bunch of stuff I've never seen anywhere else about EF.
The book is very well organized and the author has a good writing style. Everything is right to the point.
I just do not think you can do without this book if you are going to do anything besides play around with the Entity Framework.
14 von 16 Kunden fanden die folgende Rezension hilfreich
Good book on EF 4.0
25. August 2010
Format:Taschenbuch
I have learned a lot from this book and used some methods in the book for my application, so I am a grateful reader. Since this book has been praised by so many reviews, I thought it would be most useful for me to state the strengths of this book quickly then follow it with my reservations that prevented me from giving 5 stars to it.
It is very readable and well organized. It is more than a collection of recipes because the first few chapters could give a beginner a good start on EF. Some people may think it has a lot of redundancy by providing a complete list of the code for each recipe, I personally like the completeness (I have the eBook version so the thickness does not bother me at all).
Here are my reservations:
1. There are three methods to query a conceptual model in EF - LINQ to Entities, Entity SQL, Query builder methods. This could be confusing to novice readers. The book mixes all of them and it may be the best approach to mix them to achieve the most elegant code, but I wish the author could share the rationale of each mixture which can be very educational.
2. Each recipe is a method to solve a problem with a specific approach but it may not be the best overall method. I wish the book could clearly point out this. A typical example is recipe 4-3 which is a method for assigning a value to a property with code during data saving. This is a very common scenario for data entry applications (e.g. setting the user ID value which is not entered by the user for each record) and it is usually achieved by a single line of code in an event handler of a control. In the case of the recipe, it can be handled by one statement in the ItermInserting handler of the DetailsView, but the recipe uses a pure EF way of creating a partial method to intercept SavingChanges event.
3. I think the best way to achieve a solid data model is to have a solid database design and the EF conceptual model should just be a reflection of that. EF has matured a lot but the latest version EF 4.0 still has some glitches or undesirable behaviors. It is quite possible that someone may have to recreate the model from the database and it may happen many times. If a lot of "custom" modifications are made to EF model, all of them have to be repeated and this may require a lot of work, good documentation or memory. The book has a lot recipes doing exact this and some of them even get into the XML code editing. I wish the book could clearly point out the caveats of doing this.
It is very readable and well organized. It is more than a collection of recipes because the first few chapters could give a beginner a good start on EF. Some people may think it has a lot of redundancy by providing a complete list of the code for each recipe, I personally like the completeness (I have the eBook version so the thickness does not bother me at all).
Here are my reservations:
1. There are three methods to query a conceptual model in EF - LINQ to Entities, Entity SQL, Query builder methods. This could be confusing to novice readers. The book mixes all of them and it may be the best approach to mix them to achieve the most elegant code, but I wish the author could share the rationale of each mixture which can be very educational.
2. Each recipe is a method to solve a problem with a specific approach but it may not be the best overall method. I wish the book could clearly point out this. A typical example is recipe 4-3 which is a method for assigning a value to a property with code during data saving. This is a very common scenario for data entry applications (e.g. setting the user ID value which is not entered by the user for each record) and it is usually achieved by a single line of code in an event handler of a control. In the case of the recipe, it can be handled by one statement in the ItermInserting handler of the DetailsView, but the recipe uses a pure EF way of creating a partial method to intercept SavingChanges event.
3. I think the best way to achieve a solid data model is to have a solid database design and the EF conceptual model should just be a reflection of that. EF has matured a lot but the latest version EF 4.0 still has some glitches or undesirable behaviors. It is quite possible that someone may have to recreate the model from the database and it may happen many times. If a lot of "custom" modifications are made to EF model, all of them have to be repeated and this may require a lot of work, good documentation or memory. The book has a lot recipes doing exact this and some of them even get into the XML code editing. I wish the book could clearly point out the caveats of doing this.
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