public override string GetStepParameters() { var parameters = new List <string>(); parameters.Add(RecurrenceType.ToStepValue()); parameters.Add(DayComponent != null ? DayComponent.ToStepValue() : "$"); parameters.Add(WeekdayComponent != null ? WeekdayComponent.ToStepValue() : "$"); parameters.Add(MonthComponent != null ? MonthComponent.ToStepValue() : "$"); parameters.Add(Position != null ? Position.ToStepValue() : "$"); parameters.Add(Interval != null ? Interval.ToStepValue() : "$"); parameters.Add(Occurrences != null ? Occurrences.ToStepValue() : "$"); parameters.Add(TimePeriods != null ? TimePeriods.ToStepValue() : "$"); return(string.Join(", ", parameters.ToArray())); }