Enum.HasFlag Method tells whether one or more bit fields are set in the current instance.

 


<Flags> Public Enum Pet
   None = 0
   Dog = 1
   Cat = 2
   Bird = 4
   Rabbit = 8
   Other = 16
End Enum

Module Example
   Public Sub Main()
      Dim petsInFamilies() As Pet = { Pet.None, Pet.Dog Or Pet.Cat, Pet.Dog }
      Dim familiesWithoutPets As Integer
      Dim familiesWithDog As Integer

      For Each petsInFamily In petsInFamilies
         If petsInFamily.Equals(Pet.None) Then
            familiesWithoutPets += 1 
         Else If petsInFamily.HasFlag(Pet.Dog) Then
            familiesWithDog += 1
         End If
      Next
      Console.WriteLine(familiesWithoutPets)   
      Console.WriteLine(familiesWithDog)   
   End Sub
End Module

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Enum.HasFlag Method tells whether one or more bit fields are set in the current instance. : Enum « Data Types « VB.Net

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