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  • Book Overview & Buying C# 6 and .NET Core 1.0
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C# 6 and .NET Core 1.0

C# 6 and .NET Core 1.0

By : Mark J. Price
3.8 (11)
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C# 6 and .NET Core 1.0

C# 6 and .NET Core 1.0

3.8 (11)
By: Mark J. Price

Overview of this book

With the release of .NET Core 1.0, you can now create applications for Mac OS X and Linux, as well as Windows, using the development tools you know and love. C# 6 and .NET Core 1.0 has been divided into three high-impact sections to help start putting these new features to work. First, we'll run you through the basics of C#, as well as object-orient programming, before taking a quick tour through the latest features of C# 6 such as string interpolation for easier variable value output, exception filtering, and how to perform static class imports. We'll also cover both the full-feature, mature .NET Framework and the new, cross-platform .NET Core. After quickly taking you through C# and how .NET works, we'll dive into the internals of the .NET class libraries, covering topics such as performance, monitoring, debugging, internationalization, serialization, and encryption. We'll look at Entity Framework Core 1.0 and how to develop Code-First entity data models, as well as how to use LINQ to query and manipulate that data. The final section will demonstrate the major types of applications that you can build and deploy cross-device and cross-platform. In this section, we'll cover Universal Windows Platform (UWP) apps, web applications, and web services. Lastly, we'll help you build a complete application that can be hosted on all of today's most popular platforms, including Linux and Docker. By the end of the book, you'll be armed with all the knowledge you need to build modern, cross-platform applications using C# and .NET Core.
Table of Contents (20 chapters)
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19
Index

Using multiple threads with Parallel LINQ


By default, only one thread is used to execute a LINQ query. Parallel LINQ (PLINQ) is an easy way to enable multiple threads to execute a query.

To see it in action, we will start with some code that only uses a single thread to double 200 million integers.

Add a new console application project named Ch09_PLINQ. Import the System.Diagnostics namespace and statically import the System.Console type.

Add the following statements to the Main method:

var watch = Stopwatch.StartNew();
Write("Press ENTER to start. ");
ReadLine();
watch.Start();
IEnumerable<int> numbers = Enumerable.Range(1, 200000000);
var squares = numbers.Select(number => number * 2).ToArray();
watch.Stop();
WriteLine($"{watch.ElapsedMilliseconds:#,##0} ellapsed milliseconds.");

Press Ctrl + F5 to run the application, but do not press Enter yet.

Right-click on the Windows Taskbar or press Ctrl + Alt + Delete, and then click on Task Manager.

At the bottom of the Task Manager window,...

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