C# Design Patterns

Build better code by leveraging design patterns in C#. Learn about the purpose and effective use of design patterns, and discover how to apply Gang of Four patterns in your code.

Syllabus

Introduction

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

1. 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

2. 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#

3. 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

4. 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

5. 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

Taught by

Richard Goforth

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