Key FeaturesThis book is based on the latest version of .NET, .NET Core 1.0.The code is explained piece by piece and the application of the pattern is also showcased.This fast-paced guide shows you how to implement the patterns into your existing applicationsBook DescriptionKnowing about design patterns enables developers to improve their code base, promoting code reuse and making their design more robust.This book focuses on the practical aspects of programming in .NET. You will learn about some of the relevant design patterns (and their application) that are most widely used. We start with classic object-oriented programming (OOP) techniques, evaluate parallel programming and concurrency models, enhance implementations by mixing OOP and functional programming, and finally to the reactive programming model where functional programming and OOP are used in synergy to write better code.Throughout this book, well show you how to deal with architecture/design techniques, GoF patterns, relevant patterns from other catalogs, functional programming, and reactive programming techniques.After reading this book, you will be able to convincingly leverage these design patterns (factory pattern, builder pattern, prototype pattern, adapter pattern, facade pattern, decorator pattern, observer pattern and so on) for your programs. You will also be able to write fluid functional code in .NET that would leverage concurrency and parallelism!What You Will LearnPut patterns and pattern catalogs into the right perspectiveApply patterns for software development under C#/.NETUse GoF and other patterns in real-life development scenariosBe able to enrich your design vocabulary and well articulate your design thoughtsLeverage object/functional programming by mixing OOP and FPUnderstand the reactive programming model using Rx and RxJsWriting compositional code using C# LINQ constructsBe able to implement concurrent/parallel programming techniques using idioms under .NETAvoiding pitfalls when creating compositional, readable, and maintainable code using imperative, functional, and reactive code.About the AuthorPraseed Pai is a software engineering/re-engineering professional with good business acumen, technical competency, and software engineering skills. He has presented on various topics in more than two hundred technical events in the last decade and half. His areas of interest include software architecture, design patterns, domain-specific languages, engineering software development, computer graphics, and machine learning. Currently, he is associated with the UST global as a senior solutions architect in their consulting division. He is also the primary force behind the SLANGFORDOTNET compiler infrastructure, which has been ported to VB.NET (CLR), Java (JVM), C++ (LLVM), Python, JavaScript, and Ruby. He lives in the city of Kochi with his wife and two kids.Shine Xavier is a core software engineering practitioner with an extreme passion for designing/building software solutions, application frameworks, and accelerators that help maintain productivity, code quality, performance, and security. His areas of interest include functional programming, interpreters, JavaScript library development, visual programming, algorithms, performance engineering, automation, enterprise mobility, IoT and machine learning. He is currently associated with UST Global as a senior architect, where he continues to provide technical leadership in customer engagements, pre-sales, practice development, product development, innovation, and technology adoption. He lives with his wife and three kids in Thiruvananthapuram, Kerala, India.Table of ContentsAn Introduction to Patterns and Pattern CatalogsWhy We Need Design Patterns?A Logging LibraryTargeting Multiple DatabasesProducing Tabular ReportsPlotting Mathematical ExpressionsPatterns in the .NET Base Class LibraryConcurrent and Parallel Programming under .NETFunctional Programming Techniques for Better State ManagementPattern Implementation Using Object/Functional ProgrammingWhat is Reactive Programming?Reactive Programming Using .NET Rx ExtensionsReactive Programming Using RxJSA Road Ahead