c# check enum is contained in options

2018-06-19 07:53:46

This question already has an answer here:

What does the [Flags] Enum Attribute mean in C#? 10 answers

The simplest way is to use & :

if ((available & me) != 0)

You can use 0 here as there's an implicit conversion from the constant 0 to any enum, which is very handy.

Note that your enum should be defined using the Flags attribute and appropriate bit-oriented values though:

[Flags]
public enum Fruits
{
    Apple = 1 << 0,
    Orange = 1 << 1,
    Grape = 1 << 2,
    Ananas = 1 << 3,
    Banana = 1 << 4
}

If you don't want to make it a Flags enum, you should use a List<Fruit> or similar to store available options.

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