A practical guide to the Single Responsibility Principle (SRP) in C# and .NET, explaining what 'one reason to change' really means and how to apply it. Covers the ActiveRecord pattern as a classic SRP violation, the role of POCO classes, cross-cutting concerns (persistence, logging, authentication), and how to measure SRP compliance using the Lack of Cohesion Of Methods (LCOM) metric. Also discusses god classes, class-size code smells, and provides concrete guidelines for keeping C# classes focused and maintainable.
Table of contents
The SOLID Principles in C#: A Quick SummarySingle Responsibility Principle Explained with a C# ExampleSingle Responsibility Principle and the Reason to ChangeSingle Responsibility Principle and High Cohesion (LCOM)Single Responsibility Principle and Fat Code SmellsSimple Guidelines to Adhere to the Single Responsibility Principle in C#Single Responsibility Principle FAQConclusion24 Impressions