using System;

​

public class Program

{

    public static void Main()

    {

        // workflow A has A: true

        Console.WriteLine(WorkFlow.A.HasWorkFlow(WorkFlow.A));

        // workflow AandB has A: true

        Console.WriteLine(WorkFlow.AandB.HasWorkFlow(WorkFlow.A));

        // workflow AandB has C: false

        Console.WriteLine(WorkFlow.AandB.HasWorkFlow(WorkFlow.C)); 

    }

}

​

public enum WorkFlow

{

    Default = 1,

    A = 2,

    B = 4,

    C = 16,

    AandB = WorkFlow.A + WorkFlow.B,

    AandBandC = WorkFlow.A + WorkFlow.B + WorkFlow.C

}

​

public static class Extensions

{

    public static bool HasWorkFlow(this WorkFlow super, WorkFlow flow)

    {

        return super.HasFlag(flow);

    }

}