using System;

using System.Globalization;

public class Program {

  public enum ArubaBleErrorCodes {

    ArubaFloorImageUnavailable = 4000,

    ArubaSomeOtherCode = 4001,

  } 

  public static void Main() {

    string stBefore = ArubaBleErrorCodes.ArubaFloorImageUnavailable.ToString(); // Current Code

    string stAfter = nameof(ArubaBleErrorCodes.ArubaFloorImageUnavailable);     // My recommendation

    string stCode = ((int) ArubaBleErrorCodes.ArubaFloorImageUnavailable).ToString(CultureInfo.InvariantCulture); // If we want the code, not name

    Console.WriteLine($"{stBefore} :: {stAfter} :: {stCode}");

  }

}