public static bool Delete(Int32 trackingNumberId)
        {
            TrackingNumber trackingNumber = new TrackingNumber();

            if (trackingNumber.Load(trackingNumberId))
            {
                return(trackingNumber.Delete());
            }
            return(false);
        }
 public static bool Delete(TrackingNumber trackingNumber)
 {
     return(trackingNumber.Delete());
 }