The [Flags] attribute should be used whenever the enumerable represents a collection of possible values, rather than a single value. Such collections are often used with bitwise operators, for example: var allowedColors = MyColor.Red | MyColor.Green | MyColor.Blue; Note that the [Flags] attribute doesn’t enable this by itself – all it does is allow a … Read more
Both are technically correct. If you look at the source code for .equals(), it simply defers to ==. I use ==, however, as that will be null safe.
Just cast the enum, e.g. int something = (int) Question.Role; The above will work for the vast majority of enums you see in the wild, as the default underlying type for an enum is int. However, as cecilphillip points out, enums can have different underlying types. If an enum is declared as a uint, long, … Read more
How can I cast int to enum?
How to enumerate an enum
The issue is related to the modulo operator which expects a binary expression of two integers. I’d suggest reading up a little on the rules of modulo and finding a way to adjust your code. Here is an answer about this and a suggestion how to go about fixing this error. Why does modulus division … Read more
In all versions of C++, the second version (Foo::States::BAR) using scope syntax is the more conventional and will be less surprising for future maintainers of your code. Since the value is a constant, there is no need for an instance of the class, so this is similar to how static methods are most often called … Read more
Enum values should be from the same type. So your second example almost works. If you are using flags, you should give all the values an name or index, not just one: enum cardValue { Val2 = “2”, Val3 = “3”, Val4 = “4”, ValA = “A” }; Also, variable names, class names, enum values, … Read more