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Is a readonly field in VB.NET thread safe? For example, see the code below:

Class Customer
  ReadOnly Name As String

  ReadOnly ZIP As Integer = 98112

  Sub New(ByVal Name As String)

    Me.Name = Name

  End Sub
End Class
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  • By field do you mean a variable or a property? Commented Jun 8, 2012 at 14:02

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Yes, if nobody can write it, everyone is synced on its value.

Besides, you could make this integer constant (or shared readonly)

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    you are helpful Commented Jun 8, 2012 at 8:25
  • I would strongly recommend making it constant, as this documents that A) ZIP will not change within the constructor and B) that all customers have the same ZIP. B is achievable without A by making it shared. Commented Jun 8, 2012 at 17:26

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