DataPortal.Delete<T>(object criteria) Why not?

I implemented an Editable Root, it has DataPortal_Delete method

 

private void DataPortal_Delete(int Id)

{

}

 

And

 

Private static void Delete(int Id)

{

            DataPortal.Delete(Id);

}

 

It don’t work because “DataPortal.Delete” find method by GetObjectType(object criteria), while criteria’s type is int

 

I think Csla should be implemented DataPortal.Delete<T>(object criteria) method

 

Thanks.