February 2008
Intermediate to advanced
172 pages
3h 29m
English
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Chapter 1. LINQ Pocket Reference
LINQ, or Language Integrated Query, allows you to write structured type-safe queries over local object collections and remote data sources. It is a new feature of C# 3.0 and .NET Framework 3.5.
LINQ lets you query any collection implementing IEnumerable<>, whether an array, list, XML
DOM, or remote data source (such as a table in SQL Server). LINQ offers
the benefits of both compile-time type checking and dynamic query
composition.
The core types that support LINQ are defined in the System.Linq and System.Linq.Expressions namespaces in the
System.Core assembly.
Note
The examples in this book mirror the examples in Chapters 8–10 of C# 3.0 in a Nutshell (O’Reilly) and are preloaded into an interactive querying tool called LINQPad. You can download LINQPad from http://www.linqpad.net/.
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.