Hi,<BR><BR>I have a base class whose destructor is pure virtual, so the class is abstract.<BR><BR>I have a derived class (subtype) whose multi-argument constructor wants to call the base class's zero ...

In general, it's considered rude to seal classes because it prevents other developers from extending the class through inheritance. However, when you declare a base class it's considered perfectly ...

If you create a CustomerRepository that inherits from ReadRepository, you might choose to set the type of your base class: Public Class CustomerRepository Inherits ReadRepository(Of Customer) End ...