using System;

using System.Text;

public class Program

{

    public enum EaProducts

        {

            HedgeFunds = -1,

            ManagedAccounts = -2,

            AllDataSets = -3

        }

    public static void Main()

    {

        var id = new int[] {-3, -1, 3, 4};

        foreach(var item in id) {

            if (System.Enum.IsDefined(typeof(EaProducts), item))

            {

                Console.WriteLine("id is currently {0} it is contained in the ENUM!!!", item);

            } else {

                Console.WriteLine("id is currently {0} it is NOT contained in the enum :(:(:(:(:(:(", item);

            }

        }

    }

}