Book Image

C# Programming Cookbook

By : Dirk Strauss
Book Image

C# Programming Cookbook

By: Dirk Strauss

Overview of this book

During your application development workflow, there is always a moment when you need to get out of a tight spot. Through a recipe-based approach, this book will help you overcome common programming problems and get your applications ready to face the modern world. We start with C# 6, giving you hands-on experience with the new language features. Next, we work through the tasks that you perform on a daily basis such as working with strings, generics, and lots more. Gradually, we move on to more advanced topics such as the concept of object-oriented programming, asynchronous programming, reactive extensions, and code contracts. You will learn responsive high performance programming in C# and how to create applications with Azure. Next, we will review the choices available when choosing a source control solution. At the end of the book, we will show you how to create secure and robust code, and will help you ramp up your skills when using the new version of C# 6 and Visual Studio
Table of Contents (21 chapters)
C# Programming Cookbook
Credits
About the Author
Acknowledgements
About the Reviewer
www.PacktPub.com
Preface
Index

Using a parallel foreach loop to run multiple threads


A while ago, during a work retreat (yes, the company I work for is really that cool), Graham Rook, who is one of my colleagues, showed me a parallel foreach loop. It certainly speeds up processing a great deal. But here's the rub. It makes no sense using a parallel foreach loop if you're dealing with small amounts of data or little tasks. The parallel foreach loop excels when there is bulk processing to do or huge amounts of data to process.

Getting ready

We will start off by looking at where the parallel foreach loop does not perform better than the standard foreach loop. For this, we will create a small list of 500 items and just iterate over the list, writing the items to the console window.

For the second example that illustrates the power of the parallel foreach loop, we will use the same list and create a file for each item in the list. The power and benefit of the parallel foreach loop will be evident in the second example.

How to...