static void Main(string[] args)
{
var prospect = new SalesProspect
{
CustomerNumber = 1,
Name = "Erno Perälä",
Address = "<unknown>",
CustomerType = "Lead"
};
Console.WriteLine("Start");
Console.WriteLine("-----");
Console.WriteLine("{0}", prospect.ToString());
var careTaker = new CareTaker();
careTaker.StoreState(prospect.SaveMemento());
// change prospect data
prospect.Address = "Ernolantie 6";
careTaker.StoreState(prospect.SaveMemento());
Console.WriteLine("After first change");
Console.WriteLine("------------------");
Console.WriteLine("{0}", prospect.ToString());
// change prospect data again
prospect.CustomerType = "Prospect";
careTaker.StoreState(prospect.SaveMemento());
Console.WriteLine("After second change");
Console.WriteLine("------------");
Console.WriteLine("{0}", prospect.ToString());
// restore to previous state
prospect.RestoreMemento(careTaker.GetMemento());
Console.WriteLine("After first restore");
Console.WriteLine("-------------------");
Console.WriteLine("{0}", prospect.ToString());
// restore to previous state
prospect.RestoreMemento(careTaker.GetMemento());
Console.WriteLine("After second restore");
Console.WriteLine("-------------------");
Console.WriteLine("{0}", prospect.ToString());
Console.ReadLine();
}
static void Main(string[] args)
{
var prospect = new SalesProspect
{
CustomerNumber = 1,
Name = "Erno Perälä",
Address = "<unknown>",
CustomerType = "Lead"
};
Console.WriteLine("Start");
Console.WriteLine("-----");
Console.WriteLine("{0}", prospect.ToString());
var careTaker = new CareTaker();
careTaker.StoreState(prospect.SaveMemento());
// change prospect data
prospect.Address = "Ernolantie 6";
careTaker.StoreState(prospect.SaveMemento());
Console.WriteLine("After first change");
Console.WriteLine("------------------");
Console.WriteLine("{0}", prospect.ToString());
// change prospect data again
prospect.CustomerType = "Prospect";
careTaker.StoreState(prospect.SaveMemento());
Console.WriteLine("After second change");
Console.WriteLine("------------");
Console.WriteLine("{0}", prospect.ToString());
// restore to previous state
prospect.RestoreMemento(careTaker.GetMemento());
Console.WriteLine("After first restore");
Console.WriteLine("-------------------");
Console.WriteLine("{0}", prospect.ToString());
// restore to previous state
prospect.RestoreMemento(careTaker.GetMemento());
Console.WriteLine("After second restore");
Console.WriteLine("-------------------");
Console.WriteLine("{0}", prospect.ToString());
Console.ReadLine();
}