Does using virtual methods violates LSP( L part of SOLID principles) or there are some exceptions?

Question

Hi all,

Does using virtual methods violates LSP( L part of SOLID principles) or there are some exceptions?

Thanks in advance, Saghar Ayyaz

Answer 1

Why do you think that? Virtual methods in themselves are just a mechanism for polymorphism. The Liskov Substitution Principle is a just constraint on how you implement the overrides (and other aspects of descendant classes) in order to get predictable polymorphic behaviour.