public enum ContentLanguage
{
    KR, EN
}
public static class LanguageState
{
    public static ContentLanguage current_language = ContentLanguage.KR;
}

열거형 수량

System.Enum.GetValues(typeof(DeviceState)).Length;

열거형 열람

foreach (Days r in Enum.GetValues(typeof(Days)))
{
    Console.WriteLine(r);
}