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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace EnumExample
{
namespace WithFlagAttribute
{
namespace Correct
{
[Flags]
public enum DaysOfTheWeek
{
Sunday = 1,
Monday = 1 << 1,
Tuesday = 1 << 2,
Wednesday = 1 << 3,
Thursday = 1 << 4,
Friday = 1 << 5,
Saturday = 1 << 6,
}
}
namespace Incorrect
{
[Flags]
public enum DaysOfTheWeek
{
Sunday = 1,
Monday = 2,
Tuesday = 3,
Wednesday = 4,
Thursday = 5,
Friday = 6,
Saturday = 7,
}
}
}
namespace WithOutFlagsAttribute
{
namespace Correct
{
public enum DaysOfTheWeek
{
Sunday = 1,
Monday = 1 << 1,
Tuesday = 1 << 2,
Wednesday = 1 << 3,
Thursday = 1 << 4,
Friday = 1 << 5,
Saturday = 1 << 6,
}
}
namespace Incorrect
{
public enum DaysOfTheWeek
{
Sunday = 1,
Monday = 2,
Tuesday = 3,
Wednesday = 4,
Thursday = 5,
Friday = 6,
Saturday = 7,
}
}
}
class Program
{
static void Main(string[] args)
{
#region Decleration and Setup
WithFlagAttribute.Correct.DaysOfTheWeek correctWithFlags;
WithFlagAttribute.Incorrect.DaysOfTheWeek incorrectWithFlags;
WithOutFlagsAttribute.Correct.DaysOfTheWeek correctWithOutFlags;
WithOutFlagsAttribute.Incorrect.DaysOfTheWeek incorrectWithOutFlags;
Console.WriteLine("Adding Monday, Wednesday, and Friday to the enumerators...");
Console.WriteLine();
Console.WriteLine("correctWithFlags = Monday | Tuesday | Wednesday;");
Console.WriteLine();
Console.WriteLine("incorrectWithFlags = Monday | Tuesday | Wednesday;");
Console.WriteLine();
Console.WriteLine("correctWithOutFlags = Monday | Tuesday | Wednesday;");
Console.WriteLine();
Console.WriteLine("incorrectWithOutFlags = Monday | Tuesday | Wednesday;");
Console.WriteLine();
correctWithFlags = WithFlagAttribute.Correct.DaysOfTheWeek.Monday | WithFlagAttribute.Correct.DaysOfTheWeek.Tuesday | WithFlagAttribute.Correct.DaysOfTheWeek.Wednesday;
incorrectWithFlags = WithFlagAttribute.Incorrect.DaysOfTheWeek.Monday | WithFlagAttribute.Incorrect.DaysOfTheWeek.Tuesday | WithFlagAttribute.Incorrect.DaysOfTheWeek.Wednesday;
correctWithOutFlags = WithOutFlagsAttribute.Correct.DaysOfTheWeek.Monday | WithOutFlagsAttribute.Correct.DaysOfTheWeek.Tuesday | WithOutFlagsAttribute.Correct.DaysOfTheWeek.Wednesday;
incorrectWithOutFlags = WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Monday | WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Tuesday | WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Wednesday;
#endregion
#region Checking correctWithFlags
Console.WriteLine("Checking correctWithFlags:");
if ((correctWithFlags & WithFlagAttribute.Correct.DaysOfTheWeek.Sunday) == WithFlagAttribute.Correct.DaysOfTheWeek.Sunday)
Console.WriteLine("\tContains Sunday!");
else
Console.WriteLine("\tDoes not contain Sunday!");
if ((correctWithFlags & WithFlagAttribute.Correct.DaysOfTheWeek.Monday) == WithFlagAttribute.Correct.DaysOfTheWeek.Monday)
Console.WriteLine("\tContains Monday!");
else
Console.WriteLine("\tDoes not contain Monday!");
if ((correctWithFlags & WithFlagAttribute.Correct.DaysOfTheWeek.Tuesday) == WithFlagAttribute.Correct.DaysOfTheWeek.Tuesday)
Console.WriteLine("\tContains Tuesday!");
else
Console.WriteLine("\tDoes not contain Tuesday!");
if ((correctWithFlags & WithFlagAttribute.Correct.DaysOfTheWeek.Wednesday) == WithFlagAttribute.Correct.DaysOfTheWeek.Wednesday)
Console.WriteLine("\tContains Wednesday!");
else
Console.WriteLine("\tDoes not contain Wednesday!");
if ((correctWithFlags & WithFlagAttribute.Correct.DaysOfTheWeek.Thursday) == WithFlagAttribute.Correct.DaysOfTheWeek.Thursday)
Console.WriteLine("\tContains Thursday!");
else
Console.WriteLine("\tDoes not contain Thursday!");
if ((correctWithFlags & WithFlagAttribute.Correct.DaysOfTheWeek.Friday) == WithFlagAttribute.Correct.DaysOfTheWeek.Friday)
Console.WriteLine("\tContains Friday!");
else
Console.WriteLine("\tDoes not contain Friday!");
if ((correctWithFlags & WithFlagAttribute.Correct.DaysOfTheWeek.Saturday) == WithFlagAttribute.Correct.DaysOfTheWeek.Saturday)
Console.WriteLine("\tContains Saturday!");
else
Console.WriteLine("\tDoes not contain Saturday!");
#endregion
Console.WriteLine();
#region Checking incorrectWithFlags
Console.WriteLine("Checking incorrectWithFlags:");
if ((incorrectWithFlags & WithFlagAttribute.Incorrect.DaysOfTheWeek.Sunday) == WithFlagAttribute.Incorrect.DaysOfTheWeek.Sunday)
Console.WriteLine("\tContains Sunday!");
else
Console.WriteLine("\tDoes not contain Sunday!");
if ((incorrectWithFlags & WithFlagAttribute.Incorrect.DaysOfTheWeek.Monday) == WithFlagAttribute.Incorrect.DaysOfTheWeek.Monday)
Console.WriteLine("\tContains Monday!");
else
Console.WriteLine("\tDoes not contain Monday!");
if ((incorrectWithFlags & WithFlagAttribute.Incorrect.DaysOfTheWeek.Tuesday) == WithFlagAttribute.Incorrect.DaysOfTheWeek.Tuesday)
Console.WriteLine("\tContains Tuesday!");
else
Console.WriteLine("\tDoes not contain Tuesday!");
if ((incorrectWithFlags & WithFlagAttribute.Incorrect.DaysOfTheWeek.Wednesday) == WithFlagAttribute.Incorrect.DaysOfTheWeek.Wednesday)
Console.WriteLine("\tContains Wednesday!");
else
Console.WriteLine("\tDoes not contain Wednesday!");
if ((incorrectWithFlags & WithFlagAttribute.Incorrect.DaysOfTheWeek.Thursday) == WithFlagAttribute.Incorrect.DaysOfTheWeek.Thursday)
Console.WriteLine("\tContains Thursday!");
else
Console.WriteLine("\tDoes not contain Thursday!");
if ((incorrectWithFlags & WithFlagAttribute.Incorrect.DaysOfTheWeek.Friday) == WithFlagAttribute.Incorrect.DaysOfTheWeek.Friday)
Console.WriteLine("\tContains Friday!");
else
Console.WriteLine("\tDoes not contain Friday!");
if ((incorrectWithFlags & WithFlagAttribute.Incorrect.DaysOfTheWeek.Saturday) == WithFlagAttribute.Incorrect.DaysOfTheWeek.Saturday)
Console.WriteLine("\tContains Saturday!");
else
Console.WriteLine("\tDoes not contain Saturday!");
#endregion
Console.WriteLine();
#region Checking correctWithOutFlags
Console.WriteLine("Checking correctWithOutFlags:");
if ((correctWithOutFlags & WithOutFlagsAttribute.Correct.DaysOfTheWeek.Sunday) == WithOutFlagsAttribute.Correct.DaysOfTheWeek.Sunday)
Console.WriteLine("\tContains Sunday!");
else
Console.WriteLine("\tDoes not contain Sunday!");
if ((correctWithOutFlags & WithOutFlagsAttribute.Correct.DaysOfTheWeek.Monday) == WithOutFlagsAttribute.Correct.DaysOfTheWeek.Monday)
Console.WriteLine("\tContains Monday!");
else
Console.WriteLine("\tDoes not contain Monday!");
if ((correctWithOutFlags & WithOutFlagsAttribute.Correct.DaysOfTheWeek.Tuesday) == WithOutFlagsAttribute.Correct.DaysOfTheWeek.Tuesday)
Console.WriteLine("\tContains Tuesday!");
else
Console.WriteLine("\tDoes not contain Tuesday!");
if ((correctWithOutFlags & WithOutFlagsAttribute.Correct.DaysOfTheWeek.Wednesday) == WithOutFlagsAttribute.Correct.DaysOfTheWeek.Wednesday)
Console.WriteLine("\tContains Wednesday!");
else
Console.WriteLine("\tDoes not contain Wednesday!");
if ((correctWithOutFlags & WithOutFlagsAttribute.Correct.DaysOfTheWeek.Thursday) == WithOutFlagsAttribute.Correct.DaysOfTheWeek.Thursday)
Console.WriteLine("\tContains Thursday!");
else
Console.WriteLine("\tDoes not contain Thursday!");
if ((correctWithOutFlags & WithOutFlagsAttribute.Correct.DaysOfTheWeek.Friday) == WithOutFlagsAttribute.Correct.DaysOfTheWeek.Friday)
Console.WriteLine("\tContains Sunday!");
else
Console.WriteLine("\tDoes not contain Friday!");
if ((correctWithOutFlags & WithOutFlagsAttribute.Correct.DaysOfTheWeek.Saturday) == WithOutFlagsAttribute.Correct.DaysOfTheWeek.Saturday)
Console.WriteLine("\tContains Saturday!");
else
Console.WriteLine("\tDoes not contain Saturday!");
#endregion
Console.WriteLine();
#region Checking incorrectWithOutFlags
Console.WriteLine("Checking incorrectWithOutFlags:");
if ((incorrectWithOutFlags & WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Sunday) == WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Sunday)
Console.WriteLine("\tContains Sunday!");
else
Console.WriteLine("\tDoes not contain Sunday!");
if ((incorrectWithOutFlags & WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Monday) == WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Monday)
Console.WriteLine("\tContains Monday!");
else
Console.WriteLine("\tDoes not contain Monday!");
if ((incorrectWithOutFlags & WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Tuesday) == WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Tuesday)
Console.WriteLine("\tContains Tuesday!");
else
Console.WriteLine("\tDoes not contain Tuesday!");
if ((incorrectWithOutFlags & WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Wednesday) == WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Wednesday)
Console.WriteLine("\tContains Wednesday!");
else
Console.WriteLine("\tDoes not contain Wednesday!");
if ((incorrectWithOutFlags & WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Thursday) == WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Thursday)
Console.WriteLine("\tContains Thursday!");
else
Console.WriteLine("\tDoes not contain Thursday!");
if ((incorrectWithOutFlags & WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Friday) == WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Friday)
Console.WriteLine("\tContains Friday!");
else
Console.WriteLine("\tDoes not contain Friday!");
if ((incorrectWithOutFlags & WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Saturday) == WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Saturday)
Console.WriteLine("\tContains Saturday!");
else
Console.WriteLine("\tDoes not contain Saturday!");
#endregion
Console.WriteLine();
CheckUsingHasFlag(correctWithFlags, incorrectWithFlags, correctWithOutFlags, incorrectWithOutFlags);
Console.ReadKey();
}
private static void CheckUsingHasFlag(WithFlagAttribute.Correct.DaysOfTheWeek correctWithFlags, WithFlagAttribute.Incorrect.DaysOfTheWeek incorrectWithFlags, WithOutFlagsAttribute.Correct.DaysOfTheWeek correctWithOutFlags, WithOutFlagsAttribute.Incorrect.DaysOfTheWeek incorrectWithOutFlags)
{
#region Checking correctWithFlags using HasFlag
Console.WriteLine("Checking correctWithFlags using HasFlag:");
if ((correctWithFlags.HasFlag(WithFlagAttribute.Correct.DaysOfTheWeek.Sunday)))
Console.WriteLine("\tContains Sunday!");
else
Console.WriteLine("\tDoes not contain Sunday!");
if ((correctWithFlags.HasFlag(WithFlagAttribute.Correct.DaysOfTheWeek.Monday)))
Console.WriteLine("\tContains Monday!");
else
Console.WriteLine("\tDoes not contain Monday!");
if ((correctWithFlags.HasFlag(WithFlagAttribute.Correct.DaysOfTheWeek.Tuesday)))
Console.WriteLine("\tContains Tuesday!");
else
Console.WriteLine("\tDoes not contain Tuesday!");
if ((correctWithFlags.HasFlag(WithFlagAttribute.Correct.DaysOfTheWeek.Wednesday)))
Console.WriteLine("\tContains Wednesday!");
else
Console.WriteLine("\tDoes not contain Wednesday!");
if ((correctWithFlags.HasFlag(WithFlagAttribute.Correct.DaysOfTheWeek.Thursday)))
Console.WriteLine("\tContains Thursday!");
else
Console.WriteLine("\tDoes not contain Thursday!");
if ((correctWithFlags.HasFlag(WithFlagAttribute.Correct.DaysOfTheWeek.Friday)))
Console.WriteLine("\tContains Friday!");
else
Console.WriteLine("\tDoes not contain Friday!");
if ((correctWithFlags.HasFlag(WithFlagAttribute.Correct.DaysOfTheWeek.Saturday)))
Console.WriteLine("\tContains Saturday!");
else
Console.WriteLine("\tDoes not contain Saturday!");
#endregion
Console.WriteLine();
#region Checking incorrectWithFlags using HasFlag
Console.WriteLine("Checking incorrectWithFlags using HasFlag:");
if ((incorrectWithFlags.HasFlag(WithFlagAttribute.Incorrect.DaysOfTheWeek.Sunday)))
Console.WriteLine("\tContains Sunday!");
else
Console.WriteLine("\tDoes not contain Sunday!");
if ((incorrectWithFlags.HasFlag(WithFlagAttribute.Incorrect.DaysOfTheWeek.Monday)))
Console.WriteLine("\tContains Monday!");
else
Console.WriteLine("\tDoes not contain Monday!");
if ((incorrectWithFlags.HasFlag(WithFlagAttribute.Incorrect.DaysOfTheWeek.Tuesday)))
Console.WriteLine("\tContains Tuesday!");
else
Console.WriteLine("\tDoes not contain Tuesday!");
if ((incorrectWithFlags.HasFlag(WithFlagAttribute.Incorrect.DaysOfTheWeek.Wednesday)))
Console.WriteLine("\tContains Wednesday!");
else
Console.WriteLine("\tDoes not contain Wednesday!");
if ((incorrectWithFlags.HasFlag(WithFlagAttribute.Incorrect.DaysOfTheWeek.Thursday)))
Console.WriteLine("\tContains Thursday!");
else
Console.WriteLine("\tDoes not contain Thursday!");
if ((incorrectWithFlags.HasFlag(WithFlagAttribute.Incorrect.DaysOfTheWeek.Friday)))
Console.WriteLine("\tContains Friday!");
else
Console.WriteLine("\tDoes not contain Friday!");
if ((incorrectWithFlags.HasFlag(WithFlagAttribute.Incorrect.DaysOfTheWeek.Saturday)))
Console.WriteLine("\tContains Saturday!");
else
Console.WriteLine("\tDoes not contain Saturday!");
#endregion
Console.WriteLine();
#region Checking correctWithOutFlags using HasFlag
Console.WriteLine("Checking correctWithOutFlags using HasFlag:");
if ((correctWithOutFlags.HasFlag(WithOutFlagsAttribute.Correct.DaysOfTheWeek.Sunday)))
Console.WriteLine("\tContains Sunday!");
else
Console.WriteLine("\tDoes not contain Sunday!");
if ((correctWithOutFlags.HasFlag(WithOutFlagsAttribute.Correct.DaysOfTheWeek.Monday)))
Console.WriteLine("\tContains Monday!");
else
Console.WriteLine("\tDoes not contain Monday!");
if ((correctWithOutFlags.HasFlag(WithOutFlagsAttribute.Correct.DaysOfTheWeek.Tuesday)))
Console.WriteLine("\tContains Tuesday!");
else
Console.WriteLine("\tDoes not contain Tuesday!");
if ((correctWithOutFlags.HasFlag(WithOutFlagsAttribute.Correct.DaysOfTheWeek.Wednesday)))
Console.WriteLine("\tContains Wednesday!");
else
Console.WriteLine("\tDoes not contain Wednesday!");
if ((correctWithOutFlags.HasFlag(WithOutFlagsAttribute.Correct.DaysOfTheWeek.Thursday)))
Console.WriteLine("\tContains Thursday!");
else
Console.WriteLine("\tDoes not contain Thursday!");
if ((correctWithOutFlags.HasFlag(WithOutFlagsAttribute.Correct.DaysOfTheWeek.Friday)))
Console.WriteLine("\tContains Sunday!");
else
Console.WriteLine("\tDoes not contain Friday!");
if ((correctWithOutFlags.HasFlag(WithOutFlagsAttribute.Correct.DaysOfTheWeek.Saturday)))
Console.WriteLine("\tContains Saturday!");
else
Console.WriteLine("\tDoes not contain Saturday!");
#endregion
Console.WriteLine();
#region Checking incorrectWithOutFlags using HasFlag
Console.WriteLine("Checking incorrectWithOutFlags using HasFlag:");
if ((incorrectWithOutFlags.HasFlag(WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Sunday)))
Console.WriteLine("\tContains Sunday!");
else
Console.WriteLine("\tDoes not contain Sunday!");
if ((incorrectWithOutFlags.HasFlag(WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Monday)))
Console.WriteLine("\tContains Monday!");
else
Console.WriteLine("\tDoes not contain Monday!");
if ((incorrectWithOutFlags.HasFlag(WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Tuesday)))
Console.WriteLine("\tContains Tuesday!");
else
Console.WriteLine("\tDoes not contain Tuesday!");
if ((incorrectWithOutFlags.HasFlag(WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Wednesday)))
Console.WriteLine("\tContains Wednesday!");
else
Console.WriteLine("\tDoes not contain Wednesday!");
if ((incorrectWithOutFlags.HasFlag(WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Thursday)))
Console.WriteLine("\tContains Thursday!");
else
Console.WriteLine("\tDoes not contain Thursday!");
if ((incorrectWithOutFlags.HasFlag(WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Friday)))
Console.WriteLine("\tContains Friday!");
else
Console.WriteLine("\tDoes not contain Friday!");
if ((incorrectWithOutFlags.HasFlag(WithOutFlagsAttribute.Incorrect.DaysOfTheWeek.Saturday)))
Console.WriteLine("\tContains Saturday!");
else
Console.WriteLine("\tDoes not contain Saturday!");
#endregion
Console.WriteLine();
}
}
}
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I've been a .NET developer since 2006 when I graduated college. I've had lots of opportunities over the years to work on various projects in various industries. In the last few years, I've found my true calling in the DevOps arena. Now, you find me helping companies do better at developing software. When I'm actually away from keyboard, not tinkering with some new technology or side project, you'll find me actively volunteering in my community as EMT/Firefighter.
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