About This Code
Brief Description:
EmptyEnumeration class
Contributor:
Johan Känngård
Notes Version:
R4.x, R5.x, R6.x
Last Modified:
17 Dec 2002
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Code / Description
An Enumeration that always is emtpy.
Public Class EmptyEnumeration As Enumeration
' An Enumeration that always is empty.
Public Sub new()
End Sub
Public Function hasMoreElements() As Variant
hasMoreElements = False
End Function
Public Function nextElement() As Variant
Error 2000, "No more elements"
End Function
End Class
Usage / Example
Dim enum As New EmptyEnumeration()
Do While enum.hasMoreElements()
' Will never happen in this case...
Print enum.nextElement()
Loop