Specifying the return type of an abstract method from a Base Class according to a Sub Class

Question

I have the following structure:

abstract class Base {
        public abstract List<...> Get(); //What should be the generic type?
}

class SubOne :         


        

Answer 1

Try this:

public abstract class Base {
  public abstract List Foo();
}

public class Derived : Base {   // Any derived class will now return a List of
  public List Foo() { ... }     //   itself.
}