
SOLID Principles in C#: A Practical Guide with Real-World Examples
TL;DR - SOLID principles SRP: one class, one reason to change OCP: extend without modifying LSP: subclasses must behave like base types ISP: keep interfaces focused DIP: depend on abstractions, not implementations Introduction This SOLID tutorial in C# walks through each principle: SRP, OCP, LSP, ISP, and DIP, with practical code, refactoring examples, and real-world scenarios. If you’ve been coding for a while, you’ve probably heard of SOLID. It’s a set of five design principles that Robert C. Martin (better known as “Uncle Bob”) came up with back in the early 2000s. Since then, these ideas have become pretty much essential knowledge for anyone writing object-oriented code. ...