Web11 Answers Sorted by: 331 In .NET 4 there is a new method Enum.HasFlag. This allows you to write: if ( testItem.HasFlag ( FlagTest.Flag1 ) ) { // Do Stuff } which is much more readable, IMO. The .NET source indicates that this … WebAug 18, 2024 · Use the Enum.ToObject () method to convert integers to enum members, as shown below. Example: Convert int to Enum using Enum.ToObject () int i = 2, j = 6, k = 10; Week day1, day2, day3; day1 = (Week)Enum.ToObject(typeof(Week), i); //Wednesday day2 = (Week)Enum.ToObject(typeof(Week), j); //Sunday day3 = …
C# NET中的标志枚举_C#_.net_Enums_Enum Flags - 多多扣
WebMay 26, 2015 · 1. Expanding on @Telastyn's answer, you can declare your flags as an enum with the Flags attribute instead of using an array of booleans: [Flags] public enum Options : uint { Empty = 0, FancyClouds = 1, EnhancedGrassTextures = 2, HiDefNoses = 4, NoPantsMode = 8, // etc. values are increasing powers of 2 up to 2^31 } WebApr 10, 2024 · I have a method that takes an Enum value as a parameter, but not all enums are valid. I want to do something like this. public void Method (T type) where T : Enum, IValidEnum {} public enum ValidEnum : IValidEnum {} public enum NotValidEnum {} Method (ValidEnum.Value) // ok Method (NotValidEnum.Value) // Exeption. Know someone who … can mold smell like fish
C# Language Tutorial => Enum as flags
WebJul 5, 2013 · With c# the underlying type of an enum is an integral. Because it is an integral, you can logically OR the enums together. When using either of the above methods for equality will fail if enums are logically OR'd together. WebAug 16, 2024 · We can use some bit-fiddling to find out if a value is only composed of valid Enum values. Basically, we'll do the following: Loop through the valid flags options: If providedValue ∧ enumValue > 0, then providedValue = providedValue ⊕ enumValue If providedValue > 0 then it is not composed strictly of the valid enum options WebOct 25, 2024 · int result = 0; foreach (MyEnum f in flags) { result = f; // You might need to cast — (int)f. } return result; OTOH, you should use the FlagsAttribute for improved type safety: [Flags] enum MyEnum { ... } private MyEnum ConvertToBitFlags (MyEnum [] flags) { MyEnum result = 0; foreach (MyEnum f in flags) { result = f; } return result; } can mold spores exist on old boxed papers