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| -rw-r--r-- | csharp.html.markdown | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/csharp.html.markdown b/csharp.html.markdown index 61db6a8a..4258a0c6 100644 --- a/csharp.html.markdown +++ b/csharp.html.markdown @@ -622,6 +622,22 @@ on a new line! ""Wow!"", the masses cried"; public BikeBrand Brand; // After declaring an enum type, we can declare the field of this type + // Decorate an enum with the FlagsAttribute to indicate that multiple values can be switched on + [Flags] // Any class derived from Attribute can be used to decorate types, methods, parameters etc + public enum BikeAccessories + { + None = 0, + Bell = 1, + MudGuards = 2, // need to set the values manually! + Racks = 4, + Lights = 8, + Full = Bell | MudGuards | Racks | Lights + } + + // Usage: aBike.Accessories.HasFlag(Bicycle.BikeAccessories.Bell) + // Before .NET 4: (aBike.Accessories & Bicycle.BikeAccessories.Bell) == Bicycle.BikeAccessories.Bell + public BikeAccessories Accessories { get; set; } + // Static members belong to the type itself rather then specific object. // You can access them without a reference to any object: // Console.WriteLine("Bicycles created: " + Bicycle.bicyclesCreated); @@ -825,7 +841,6 @@ on a new line! ""Wow!"", the masses cried"; ## Topics Not Covered - * Flags * Attributes * Exceptions, Abstraction * ASP.NET (Web Forms/MVC/WebMatrix) |