como usar o enum em vbnet

Enum SecurityLevel
    IllegalEntry = -1
    MinimumSecurity = 0
    MaximumSecurity = 1
End Enum

Public Enum InterfaceColors
    MistyRose = &HE1E4FF&
    SlateGray = &H908070&
    DodgerBlue = &HFF901E&
    DeepSkyBlue = &HFFBF00&
    SpringGreen = &H7FFF00&
    ForestGreen = &H228B22&
    Goldenrod = &H20A5DA&
    Firebrick = &H2222B2&
End Enum

Public Class Egg
    Enum EggSizeEnum
        Jumbo
        ExtraLarge
        Large
        Medium
        Small
    End Enum

    Public Sub Poach()
        Dim size As EggSizeEnum

        size = EggSizeEnum.Medium
        ' Continue processing...
    End Sub
End Class

Public Sub Scramble(ByVal size As Egg.EggSizeEnum)
    ' Process for the three largest sizes.
    ' Throw an exception for any other size.
    Select Case size
        Case Egg.EggSizeEnum.Jumbo
            ' Process.
        Case Egg.EggSizeEnum.ExtraLarge
            ' Process.
        Case Egg.EggSizeEnum.Large
            ' Process.
        Case Else
            Throw New ApplicationException("size is invalid: " & size.ToString)
    End Select
End Sub

Enum EggSizeEnum
    Jumbo
    ExtraLarge
    Large
    Medium
    Small
End Enum

Public Sub Iterate()
    Dim names = [Enum].GetNames(GetType(EggSizeEnum))
    For Each name In names
        Console.Write(name & " ")
    Next
    Console.WriteLine()
    ' Output: Jumbo ExtraLarge Large Medium Small 

    Dim values = [Enum].GetValues(GetType(EggSizeEnum))
    For Each value In values
        Console.Write(value & " ")
    Next
    Console.WriteLine()
    ' Output: 0 1 2 3 4 
End Sub

[ <attributelist> ] [ accessmodifier ]  [ Shadows ]
Enum enumerationname [ As datatype ]
   memberlist
End Enum

Public Enum MyEnum As Byte
    Zero
    One
    Two
End Enum