public override string ToString()
{
string a = String.Format("Produkt: {0}{4}{4}Typ: {1}{4}{4}Cena:{4}{2}{4}{4}Komentarz:{4}{3}",
NameOfProduct, Type, PriceOfProduct.ToString(), Comments, Environment.NewLine);
return(a);
}
public void ChangeCurrency(Waluta a)
{
PriceOfProduct.ChangeCurrency(a);
}