IList to IList

Question

I have a few classes:

class Vehicle
{
}

class Car : Vehicle
{
}

I have a list of the derived class: IList cars;

Answer 1

You're facing the problem that there is limited co- and contravariance in C#. There is an interesting approach in C# 4.0, described here at the very ending. However, it creates some other limitations that are related to the truck-problem in the answer from Novelocrat.