C#: Design Patterns Part 2

Course details

Design patterns in C# can save you a lot of time, as you don’t have to recreate code that has already been proven. In this course, instructor Richard Goforth explains what design patterns are and how you can recognize and implement five C# patterns: Observer, Builder, Command, Proxy, and Chain of Responsibility. For each pattern, Richard gives a definition, at least one example of how to implement or use it, any other explanations you may need, and a practice challenge. He concludes with some suggestions on where to continue your education in C# application design with patterns.

Concepts

0. Introduction

01 - Object-oriented design patterns in C#, part 2
02 - Using the exercise files and installing .NET SDK

1. Observer

03 - Observer pattern definition
04 - Simple event delegate observer implementation in C#
05 - Using INotifyPropertyChanged to observe model changes in C#
06 - Challenge - Replace a direct call with the Observer pattern
07 - Solution - Replace a direct call with the Observer pattern

2. Builder

08 - Builder pattern definition
09 - Simple builder implementation in C#
10 - Explore the ApplicationBuilder pattern being used in an enterprise MVC application
11 - Implement the Builder pattern in an MVC application
12 - Challenge - Fluent order builder
13 - Solution - Fluent order builder

3. Command

14 - Command pattern definition
15 - Simple Command pattern implementation in C#
16 - Implement a data update command in a C# MVC application
17 - Challenge - Undo with the Command pattern
18 - Solution - Undo with the Command pattern

4. Proxy

19 - Proxy pattern definition
20 - Simple proxy file access in C#
21 - Caching data service proxy with MVC in C#
22 - Challenge - Proxy Facade
23 - Solution - Proxy Facade

5. Chain of Responsibility

24 - Chain of Responsibility pattern definition
25 - Simple Chain of Responsibility exception handling in C#
26 - ASP.NET Core request pipeline as a Chain of Responsibility
27 - Add a filter to the ASP.NET core Chain of Responsibility
28 - Challenge - Chain of Responsibility grocery list
29 - Solution - Chain of Responsibility grocery list

Conclusion

30 - Next steps

C#: Design Patterns Part 2

Authors

Richard Goforth