Blog

Mert Özen's blog posts on software development, backend, frontend, and DevOps.

Series

.NET Core Web API 36 C# Fundamentals 20 Object-Oriented Programming in C# 16 C# Collections and Generics 11 LINQ 17 Asynchronous Programming in C# 17 Advanced C# 14 C# Versions 6

2 posts found #inheritance

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Backend PART 06

Polymorphism in C#: virtual, override, new and Abstract Classes

Letting the runtime decide with virtual and override, an if-free cart loop for shipping costs, base calls and overriding ToString, hiding with new and the CS0114 trap, abstract classes and the template method, sealed override and the NullReferenceException of calling a virtual method from a constructor.

7 Nov 2026 10 min 9

Backend PART 05

Inheritance in C#: base, sealed and the Constructor Chain

Inheritance with Product, Book and EBook: what a derived class sees and protected, the constructor chain with base and the reverse order of field initializers, upcasting, downcasting, is and as, stopping derivation with sealed, and how an Order derived from List breaks encapsulation.

7 Nov 2026 11 min 8