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Product Description
Product Description
LINQ is the part of the .NET Framework that provides a generic approach to querying data from different data sources. It has quickly become the next must-have skill for .NET developers. Pro LINQ: Language Integrated Query in C# 2010 is all about code. Literally, this book starts with code and ends with code. Most books show the simplest examples of how to use a method, but they so rarely show how to use the more complex prototypes. This book is different. Demonstrating the overwhelming majority of LINQ operators and prototypes, it is a veritable treasury of LINQ examples.
Rather than obscure the relevant LINQ principles in code examples by focusing on a demonstration application you have no interest in writing, this book cuts right to the chase of each LINQ operator, method, or class. However, where complexity is necessary to truly demonstrate an issue, the examples are right there in the thick of it. For example, code samples demonstrating how to handle concurrency conflicts actually create concurrency conflicts so you can step through the code and see them unfold.
Face it, most technical books, while informative, are dull. LINQ need not be dull. Written with a sense of humor, this book will attempt to entertain you on your journey through the wonderland of LINQ and C# 2010.
What you’ll learn
- How to leverage all the new LINQ relevant C# 2008 language features including extension methods, lambda expressions, anonymous data types, and partial methods.
- How to use LINQ to Objects to query in-memory data collections such as arrays, ArrayLists, and Lists to retrieve the data you want.
- Why some queries are deferred, how a deferred query can bite you, and how you can make deferred queries work for you.
- How to use LINQ to XML to revolutionize your creation, manipulation, and searching of XML data.
- How to query DataSets with LINQ to DataSet so you can coexist with legacy code and use LINQ to query databases other than SQL Server.
How to query Databases with LINQ to SQL, write your own entity classes, and understand how to handle concurrency conflicts.
Who this book is for
This book is written for the proficient C# developer, but you do not need to be up on all the latest C# features to understand the material. When you finish this book, you will have a much greater understanding of the latest C# features.
Table of Contents
- Hello LINQ
- C# Language Enhancements for LINQ
- LINQ to Objects Introduction
- Deferred Operators
- Nondeferred Operators
- LINQ to XML Introduction
- The LINQ to XML API
- LINQ to XML Operators
- Additional XML Capabilities
- LINQ to DataSet Operators
- Additional DataSet Capabilities
- LINQ to SQL Introduct ion
- LINQ to SQL Tips and Tools
- LINQ to SQL Database Operations
- LINQ to SQL Ent ity Classes
- The LINQ to SQL DataContext
- LINQ to SQL Concurrency Conflicts
- Additional LINQ to SQL Capabilities
- LINQ to Entities Introduction
- LINQ to Entities Operations
- LINQ to Entities Classes
- Parallel LINQ Introduction
- Using Parallel LINQ
- Parallel LINQ Operators
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Customer Reviews
There is a piece of code that is endlessly repeated throughout the book (probably not as much as 20% of the content but pretty close) and for me it was so tiring to assure myself each time it was the same code. Sitting in front of a computer doing the exercises would probably have been a different experience of course.
My only suggestion to the author would be to include a chapter on how to use best practices and patterns to implement LINQ in a real world scenario.
Overall, I really recommend this book.
The book is comprehensive, well-organized, the prose is clear and the samples are understandable. You can cover a lot of pages quickly within a topic as each sample builds on previous ones, presented at the beginning of a section. The authors highlight and explain unexpected pitfalls as well as "standard fare".
Jimmy does not mention chapters 4 & 5: these are an overview of all the operators, organized by type and category. This isn't a section you can necessarily read through, as the mind bogs down and boggles after a certain number of entries. But it's a useful reference tool.
The XML chapters were real eye-openers and something I can apply immediately. The SQL information isn't as relevant for me, at the moment, so I can't comment on that. Linq to Entities is also useful.
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