C#, Flags Enum, Generic function to look for a flag

Question

I\'d like one general purpose function that could be used with any Flags style enum to see if a flag exists.

This doesn\'t compile, but if anyone has a suggestion, I

Answer 1

Today, you can set the c# language version to >=7.3 and use the next code as the reference:

public static class EnumExt
{
    public static IEnumerable Explode(this TEnum enumValue) where TEnum : Enum
    {
        var res = Enum.GetValues(enumValue.GetType())
            .Cast()
            .Where(x => enumValue.HasFlag(x));
        return res;
    }

    public static string ExplodeToString(this TEnum enumValue, string delimeter = ",") where TEnum : Enum
    {
        return string.Join(delimeter, Explode(enumValue));
    }
}