using System.Collections.Generic;

​

public class Program

{

    public static class DataStore{

        public static List<T> ListObjects<T, U>(){

            return null;

        }

    }

    public static List<BaseGenericType<BaseType>> ListEntityView<T, U>()

        where T : BaseGenericType<BaseType>, new()

        where U : BaseType, new()

    {

        return DataStore.ListObjects<BaseGenericType<BaseType>, U>();

    }

    public class BaseGenericType<T>{

    }

    public class BaseType{

    }

    public class DerivedGenericType<T> : BaseGenericType<T> {

    }

    public class DerivedType : BaseType{

    }

​

    public static void Main()

    {

        ListEntityView<DerivedGenericType<DerivedType>, DerivedType>(); 

    }

}

​