public WageRateNode(WageRateTypes wageRateType, decimal forDriverWithForwarder, decimal forDriverWithoutForwarder, decimal forForwarder)
 {
     Date = null;
     Rate = new WageRate(wageRateType, forDriverWithForwarder, forDriverWithoutForwarder, forForwarder);
 }
 public WageRateNode(DateTime date, WageRateTypes wageRateType, decimal forDriverWithForwarder, decimal forDriverWithoutForwarder, decimal forForwarder)
 {
     Date = date;
     Rate = new WageRate(wageRateType, forDriverWithForwarder, forDriverWithoutForwarder, forForwarder);
 }