Check if the backend value is defined for an Enum

 

Public Enum Status As Integer
   Unknown = -3
   Late = -1
   OnTime = 0
   Early = 1
End Enum

Module Example
   Public Sub Main()
      Dim values() As Integer = { -3, -1, 0, 1, 5, Int32.MaxValue }
      For Each value In values
         Dim status As Status
         If [Enum].IsDefined(GetType(Status), value)
            status = CType(value, Status) 
         Else
            status = Status.Unknown
         End If
         Console.WriteLine("Converted {0:N0} to {1}", value, status)
      Next   
   End Sub
End Module

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Check if the backend value is defined for an Enum : Enum « Data Types « VB.Net

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