Get Enums in List() object

public enum PaymentType

    {

        Unknown = 0,

        Points = 1,

        Comps = 2,

        Promo = 3,

        Cash = 4,

        UnPaid = 5

    }

public static List<string> paymentTypes = null;

if (paymentTypes == null)

            {

       List<PaymentType> paymentValues = Enum.GetValues(typeof(PaymentType)).Cast<PaymentType>().ToList<PaymentType>();

                paymentTypes = new List<string>();

                foreach (var item in paymentValues)

                {

                    paymentTypes.Add(item.ToString());

                }

            }

Now check output in paymentTypes object.