public ProductBase(int id, string title, decimal price, CategoryBase category)
{
if (id <= 0 || price < 0)
{
throw new ArgumentException();
}
Id = id;
Price = price;
Title = title.ThrowIfNull(nameof(title));
Category = category.ThrowIfNull(nameof(category));
}
public CampaignBase(int id, string title, decimal discount, CategoryBase category)
{
if (id <= 0 || discount < 0)
{
throw new ArgumentException();
}
Id = id;
Discount = discount;
Title = title.ThrowIfNull(nameof(title));
Category = category.ThrowIfNull(nameof(category));
}