Download e-book for kindle: LINQ to Objects Using C# 4.0: Using and Extending LINQ to by Troy Magennis

By Troy Magennis

ISBN-10: 0321637003

ISBN-13: 9780321637000

Your whole Example-Rich advisor to utilizing and increasing LINQ to things and PLINQ


Using LINQ to things, .NET builders can write queries over item collections with an identical deep performance that was to be had in basic terms with SQL and relational databases. Now, for the 1st time, builders have a accomplished and authoritative advisor to utilising LINQ to things in real-world software program. Microsoft MVP Troy Magennis introduces cutting-edge innovations for operating with in-memory collections extra elegantly and efficiently—and writing code that's awfully strong, strong, and versatile.


Drawing on his unsurpassed adventure coding software program utilizing LINQ and webhosting the preferred website, Magennis provides well timed, reasonable strategies to a large spectrum of improvement demanding situations, similar to combining info from a number of resources, and attaining optimum functionality with tremendous huge units of knowledge. You’ll start with short quick-starts that stroll you thru LINQ to things’ key good points and question syntax. subsequent, you’ll drill all the way down to distinct thoughts for using and increasing those good points with C# 4.0 and C# 3.0—including code examples that mirror the realities of creation development.


Coverage contains

  • Writing easy LINQ queries with C#: filtering, projecting, and sorting information from in-memory collections
  • Mastering complicated recommendations for grouping and becoming a member of info and knowing the functionality implications of every technique
  • Taking complete benefit of LINQ’s usual question operators
  • Creating customized question operators that stick to most sensible practices for coding styles and blunder handling
  • Writing extra fluent, readable LINQ queries with C# 4.0’s language improvements, together with the hot dynamic features
  • Combining LINQ with COM-Interop to entry facts resources corresponding to Microsoft Excel
  • Using Parallel LINQ to things (PLINQ) to optimize queries for multi-core processors, and the way to construct customized parallel question operators
  • Integrating the easiest LINQ to things styles into your daily coding

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Read or Download LINQ to Objects Using C# 4.0: Using and Extending LINQ to Objects and Parallel LINQ (PLINQ) (Addison-Wesley Microsoft Technology Series) PDF

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Download PDF by Troy Magennis: LINQ to Objects Using C# 4.0: Using and Extending LINQ to

Your entire Example-Rich advisor to utilizing and increasing LINQ to things and PLINQ   utilizing LINQ to things, . web builders can write queries over item collections with a similar deep performance that was on hand in simple terms with SQL and relational databases. Now, for the 1st time, builders have a accomplished and authoritative advisor to making use of LINQ to things in real-world software program.

Additional resources for LINQ to Objects Using C# 4.0: Using and Extending LINQ to Objects and Parallel LINQ (PLINQ) (Addison-Wesley Microsoft Technology Series)

Sample text

N => n < 5 (int n) => n < 5 n => n % 2 == 1 (n, index) => n < index (explicit parameter typing) (true for odd numbers) (multiple parameters) From the Library of Wow! eBook 28 Chapter 2 Introducing LINQ to Objects Lambda expressions will become second nature when you begin writing LINQ code; for now, just get comfortable with the fact that a lambda expression is simply a nicer way of passing code to another function to execute. Listing 2-6 demonstrates some before and after shots of inlining code as a delegate.

Code will be simpler, often faster, and easier to read. Net languages are being improved to support tomorrow’s coding challenges. The next chapter looks more closely at how to construct basic LINQ queries in C#, a prerequisite to understanding the more advanced features covered in later chapters. References 1. Box, Don and Hejlsberg, Anders. 2006. LINQ Project Overview, May. doc. From the Library of Wow! eBook This page intentionally left blank From the Library of Wow! eBook C H A P T E R 2 INTRODUCING LINQ TO OBJECTS Goals of this chapter: ■ ■ ■ Define the capabilities of LINQ to Objects.

To understand the basic query syntax, Listings 2-8 and 2-9 demonstrate simple LINQ to Object queries, with their respective console output shown in Outputs 2-3 and 2-4. From the Library of Wow! WriteLine(result); Output 2-4 27 LINQ to Objects extends any type that inherits from IEnumerable (using extension methods as described earlier), introducing a set of query operations similar to those in an SQL language. NET Base Class Libraries implement the From the Library of Wow! eBook 32 Chapter 2 Introducing LINQ to Objects interface, so with one set of extension methods, Microsoft has added query ability to all collections.

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