Component Registration Override C#: how to resolve?

Question

Assuming the classes have the following structure for the purpose of recycling useful code:

public abstract class BaseWriter {...}

public class CommonWriter : BaseWriter {...}
public class CustomWriter : CommonWriter {...}

we have also another class that instantiates these writers, however these being initialized by dependency injection:

public class RawReports {
   public CommonWriter Common {get; set;}
   public CustomWriter Custom {get; set;}
}

I had a problem, injecting like below because all instances of BaseWriter were initialized with CommonWriter implementation:

services.DeclareServicesFor<CommonWriter>();
services.DeclareServicesFor<CustomWriter>();

How do i solve it and keep using dependency injection?

Answer 1

Later in the day, I saw that I could solve this by defining the superclass as default implementation, and the subclass would be instantiated when necessary:

services.DeclareService(null, 
                       [typeof(CommonWriter)],
                        DeclarationPolicies.IsDefaultImplementation);
services.DeclareServicesFor<CustomWriter>()

the CommonWriter probably overrun all implementations because it was the first to be registered.