Overloading SmartDate constructor to take an enum instead of boolean

Public Sub New(ByVal value As Date, ByVal emptyDefaultValue As EmptyDefault)
   Me.New(value, (emptyDefaultValue = EmptyDefault.Min))
End Sub

Public Sub New(ByVal value As String, _
               ByVal emptyDefaultValue As EmptyDefault)
   Me.New(value, (emptyDefaultValue = EmptyDefault.Min))
End Sub

This would allow client code to explicitly specify what the empty default should be in a way that would be apparent to anyone looking at the code.

Example:
Private mEnded as New SmartDate(SmartDate.EmptyDefault.Max)