On Apr 8, 2006, at 12:45 AM, Thom McGrath wrote:
If I have ClassA which has a shared property, visible, all instances
of ClassA share this property, right? Well if I subclass ClassA into
ClassB, do all instances of both ClassA and ClassB share this property
since ClassB is a ClassA? Or do all ClassA's share a visible property
and all ClassB's share a different visible property?
Shared properties belong to the class, not any given instance. I would
consider it a bug that you can say instanceOfClass.sharedProp; use
ClassName.sharedProp. In my simple test:
Class Class1
Shared Property foo as integer
End Class
Class Class2 Inherits Class1
End Class
Sub Window1.Open()
Class1.foo = 42
msgBox( str( Class2.foo ) )
End Sub
the msgbox() shows 42. There is only one instance of any shared
property, inherited by subclasses (like a method, except you can't
shadow it).
HTH!
-- Asher
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