C#: Design Patterns Part 1

Course details

Design patterns are an important part of programming. Rather than programming solutions to every issue from scratch, developers can implement these patterns that solve common problems. In this course, instructor Richard Goforth explains the purpose and effective use of key design patterns in C#. Richard begins by discussing why design patterns make sense, what they are, and how they are grouped and categorized. He then provides an overview of the creational, behavioral, and structural Gang of Four design patterns and how they are applied in C# and .NET. Next, he takes a deeper dive into the Iterator, Factory Method, and Adapter patterns, providing hands-on challenges that help you master the application of these patterns in your own code.

Concepts

Introduction

Object-oriented design patterns in C#
What you should know
Review of terms
Using the exercise files and installing .NET SDK

Defining Software Design Patterns

Object-oriented programming
What isn't OOP for design patterns
C#, OOP, and design patterns
What are design patterns
Why do you need design patterns
A short history of design patterns
Categories of design patterns
Challenge - Design patterns outside of software
Solution - Design patterns outside of software

Get Started with Design Patterns

Using software design patterns
Software design pattern drawbacks
Overview of the creational patterns for C#
Overview of the structural patterns for C#
Overview of the behavioral patterns for C#

The Iterator Pattern

Iterator pattern definition
Explicit iterator implementation in C# for generated data
Combining iterators in C# with LINQ
Challenge - Simultaneous iterators
Solution - Simultaneous iterators

The Factory Method Pattern

Factory Method pattern definition
Factory Method pattern to choose the implementation of an action dynamically
Factory Method design pattern for unit testing
Challenge - Factory Method with dependency injection
Solution - Factory Method with dependency injection

The Adapter Pattern

Adapter pattern definition
Adapter in C# - Adapt FileStream to ILogger
Adapter pattern for ViewModel mapping
Challenge - Class adapter vs. object adapter
Solution - Class adapter vs. object adapter

Conclusion

Next steps