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Enums.dib
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Enums.dib
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#!markdown
# Enums
#!markdown
### Simple Enum
#!csharp
enum WeekDay
{
Monday,
Tuesday,
Wednesday,
Thursday,
Friday,
Saturday,
Sunday
}
#!csharp
display("");
WeekDay day = WeekDay.Monday;
Console.WriteLine(day);
day = WeekDay.Thursday;
Console.WriteLine(day);
day = (WeekDay)4;
Console.WriteLine(day);
day = WeekDay.Tuesday;
Console.WriteLine((int)day);
Console.WriteLine(day == WeekDay.Tuesday);
#!markdown
### Simple enum with assigned values
#!csharp
enum WeekDay
{
Monday = 1,
Tuesday = 2,
Wednesday = 3,
Thursday = 4,
Friday = 5,
Saturday = 6,
Sunday = 7
}
#!csharp
display("");
WeekDay day = WeekDay.Monday;
Console.WriteLine(day);
day = WeekDay.Thursday;
Console.WriteLine(day);
day = (WeekDay)4;
Console.WriteLine(day);
day = WeekDay.Tuesday;
Console.WriteLine((int)day);
Console.WriteLine(day == WeekDay.Tuesday);
#!markdown
### Enum with flags
#!csharp
[Flags]
public enum CarOptions
{
// The flag for SunRoof is 0001.
SunRoof = 0x01,
// The flag for Spoiler is 0010.
Spoiler = 0x02,
// The flag for FogLights is 0100.
FogLights = 0x04,
// The flag for TintedWindows is 1000.
TintedWindows = 0x08,
SpoilerAndSunRoof = 0x01 | 0x02
}
#!csharp
// The bitwise OR of 0001 and 0100 is 0101.
CarOptions options = CarOptions.SunRoof | CarOptions.FogLights;
// Because the Flags attribute is specified, Console.WriteLine displays
// the name of each enum element that corresponds to a flag that has
// the value 1 in variable options.
Console.WriteLine(options);
// Print out the integer value of SunRoof | FogLights, which is 0101, which is 5
Console.WriteLine((int)options);
Console.WriteLine(options.HasFlag(CarOptions.SunRoof));
Console.WriteLine(options.HasFlag(CarOptions.FogLights));
Console.WriteLine(options.HasFlag(CarOptions.TintedWindows));