Stop Guessing Types in C#: typeof, GetType and IsAssignableFrom Explained
Let's break down the real jobs of typeof, object.GetType and Type.IsAssignableFrom with small, runnable examples and a few nerdy references for fun. You will learn when to reach for each API, why EF Core and infrastructure code lean on assignability checks, and how pattern matching fits into the story. We will cover null pitfalls, open generic comparisons and proxy types. By the end, your type checks will read clearly and behave predictably.
