Visitor Pattern with VB.Net

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Let's say I have a visitor interface like this:

''' <remarks>Visitor Pattern</remarks>
Public Interface IVisitor
    Sub Visit(value As Type1)
    Sub Visit(value As Type2)
    Sub Visit(value As Type3)
    Sub Visit(value As Type4)
    Sub Visit(value As ...)
    ...
End Interface

Is there a way for my concrete visitors to avoid implementing Visit functions they don't need? I'd like to avoid doing stuff like this in my concrete visitors:

#Region "Methods not implemented (not needed)"

    Public Sub Visit(value As Type4) Implements IVisitor.Visit

    End Sub

    ...

I know that I can't use the Overridable keyword in Interface. So maybe I should just drop Interface for Overridable Sub in my base class?

asked 1 min ago

CTZStef

863