I want to start subclassing SF Buisness Objects (so I can imbed ny own Code in some of the methods)  and am not sure how to do this. I have successfully subclassed a few controls (TextBoxes, Lables) etc and they are working fine, so I am using a similar approcah for Buisness Objects.

I tried :  

public class KernelBO : MicroFour.StrataFrame.Business.BusinessLayer
{
}

My project compiles ok. I then created a new Business Object in the normal way , and went in manually and changed the generated code

from:
public partial class SquBO : MicroFour.StrataFrame.Business.BusinessLayer
to:
public partial class SquBO : KernelBaseSF.KernelBO

but got an error in compiling the Business Objects Project (KernelBaseSF.KernelBO does not contain a constructor that takes 2 arguments

What am I doing wrong here ?