Question

Recently I used a class that inherits from a collection instead of having the collection instantiated within the class, is this acceptable or does it create unseen problems further down the road? Examples below for the sake of clarity:

public class Cars : List<aCar> 

instead of something like:

public class Cars {  List<aCar> CarList = new List<aCar>(); } 

Any thoughts?

Answer 1

The problem with this is that your Cars class will still have the interface it inherits from List, which may allow operations you don’t want.