Shadows keyword in VB.NET

Shadows Keyword

Use shadows to define method hiding explicitly. The child member temporarily hides the parent member and activates its own. This is called shadowing. The purpose of shadows is to Protects against a subsequent base-class modification that introduces a member you have already defined in your derived class.If you do not specify either Shadows or Overrides, the compiler issues a warning message to help you be sure which kind of redefinition you want to use. If you ignore the warning, the shadowing mechanism is used.

Module Module1

Class A

Public Sub Show()

Console.WriteLine("Calling from A")

End Sub

End Class

Class B

Inherits A

Public Shadows Sub Show()

Console.WriteLine("Calling from B")

End Sub

End Class

Class C

Inherits B

Public Shadows Sub Show()

Console.WriteLine("Calling from C")

End Sub

End Class

Class Test

Public Shared Sub Main()

Dim x As A

x = New A()

x.Show()

x = New B()

x.Show()

x = New C()

x.Show()

End Sub

End Class

End Module

OUTPUT: