April 2016
Intermediate to advanced
1536 pages
44h 2m
English
Content preview from Professional C# 6 and .NET Core 1.0
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13 Language Integrated Query
What’s In This Chapter?
- Traditional queries across objects using List
- Extension methods
- LINQ query operators
- Parallel LINQ
- Expression trees
Wrox.com Code Downloads for This Chapter
The wrox.com code downloads for this chapter are found at www.wrox.com/go/professionalcsharp6 on the Download Code tab. The code for this chapter is divided into the following major examples:
- LINQ Intro
- Enumerable Sample
- Parallel LINQ
- Expression Trees
LINQ Overview
LINQ (Language Integrated Query) integrates query syntax inside the C# programming language, making it possible to access different data sources with the same syntax. LINQ accomplishes this by offering an abstraction layer.
This chapter describes the core principles of LINQ and the language extensions for C# that make the C# LINQ Query possible.
This chapter starts with a simple LINQ query before diving into the full potential of LINQ. The C# language offers integrated query language that is converted to method calls. This section shows you what the conversion looks like so you can use all the possibilities of LINQ.
Lists and Entities
The LINQ queries in this chapter are performed on a collection containing Formula-1 champions from 1950 to 2015. This data needs to be prepared with entity ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.