FlagsAttribute Indicates that an enumeration can be treated as a bit field; that is, a set of flags.

 

Imports System
Imports Microsoft.VisualBasic

Module FlagsAttributeDemo
    Enum SingleHue as Short
        Black = 0
        Red = 1
        Green = 2
        Blue = 4
    End Enum
    <FlagsAttribute( )> _
    Enum MultiHue as Short
        Black = 0
        Red = 1
        Green = 2
        Blue = 4
    End Enum

    Sub Main( )
        Dim val as Integer
        For val = 0 to 8
            Console.WriteLine( "{0,3} - {1}",val, CType( val, SingleHue ).ToString( ) )
        Next val

        For val = 0 to 8
            Console.WriteLine( "{0,3} - {1}", _
                val, CType( val, MultiHue ).ToString( ) )
        Next val
    End Sub 
End Module

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FlagsAttribute Indicates that an enumeration can be treated as a bit field; that is, a set of flags. : Enum « Data Types « VB.Net

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