Created
August 3, 2012 02:12
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Enum Flag Extensions
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using System; | |
using System.Collections.Generic; | |
using System.Linq; | |
using System.Web; | |
namespace Enum.Extensions | |
{ | |
public static class EnumerationExtensions | |
{ | |
public static bool Has<T>(this System.Enum type, T value) | |
{ | |
try | |
{ | |
return (((int)(object)type & (int)(object)value) == (int)(object)value); | |
} | |
catch | |
{ | |
return false; | |
} | |
} | |
public static bool Is<T>(this System.Enum type, T value) | |
{ | |
try | |
{ | |
return (int)(object)type == (int)(object)value; | |
} | |
catch | |
{ | |
return false; | |
} | |
} | |
public static T Add<T>(this System.Enum type, T value) | |
{ | |
try | |
{ | |
return (T)(object)(((int)(object)type | (int)(object)value)); | |
} | |
catch (Exception ex) | |
{ | |
throw new ArgumentException( | |
string.Format( | |
"Could not append value from enumerated type '{0}'.", | |
typeof(T).Name | |
), ex); | |
} | |
} | |
public static T Remove<T>(this System.Enum type, T value) | |
{ | |
try | |
{ | |
return (T)(object)(((int)(object)type & ~(int)(object)value)); | |
} | |
catch (Exception ex) | |
{ | |
throw new ArgumentException( | |
string.Format( | |
"Could not remove value from enumerated type '{0}'.", | |
typeof(T).Name | |
), ex); | |
} | |
} | |
} | |
} |
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