public enum MyEnum
{
   One=1,
   Two=2,
   Three=3
}

Enum.GetNames(typeof(MyEnum))
                            .Select(exEnum =>
                                (MyEnum)Enum.Parse(typeof(MyEnum), exEnum))
                            .ToList();

Enum.GetValues(typeof(MyEnum)).Cast<MyEnum>();

public static class MyGlobals
{
   public static readonly List<MyEnum> EnumList =
       Enum.GetValues(typeof(MyEnum)).Cast<MyEnum>().ToList();
}

public static List<T> EnumToList<T>()

{

 Type enumType = typeof(T);

 // Can't use type constraints on value types, so have to do check like this

 if (enumType.BaseType != typeof(Enum))

  throw new ArgumentException("T must be of type System.Enum");

 return new List<T>(Enum.GetValues(enumType) as IEnumerable<T>);

}