} // default constructor
protected Tour(
string name,
int duration,
decimal price,
string location,
TypesOfTours typesOfTours,
string description,
DateTime tourStart
)
{
Name = name ?? throw new ArgumentNullException(nameof(name)); // check null
if (duration <= 0)
{
throw new ArgumentException(nameof(duration)); // check validity of parameters
}
Duration = duration;
if (price < 0)
{
throw new ArgumentException(nameof(duration)); // check validity of parameters
}
Price = price;
Location = location ?? throw new ArgumentNullException(nameof(location)); // check null
Type = typesOfTours;
Description = description ?? throw new ArgumentNullException(nameof(description)); // check null
TourStart = tourStart;
TourEnd = TourStart.AddDays(Duration);
}
public List <Tour> ListToursByType(TypesOfTours type)
{
/*
* input data: type - specific type of tour
* return data: list of tours that match this type
*/
return(_tours.Where(t => t.Type == type).ToList());
}
public int ToursCountByType(TypesOfTours type)
{
return(_tours.Count(tour => tour.Type == type));
}