/// <summary>
/// Entry point into console application.
/// </summary>
public static void Demonstrate()
{
// Configure Observer pattern
ConcreteSubject s = new ConcreteSubject();
s.Attach(new ConcreteObserver(s, "X"));
s.Attach(new ConcreteObserver(s, "Y"));
s.Attach(new ConcreteObserver(s, "Z"));
// Change subject and notify observers
s.SubjectState = "ABC";
s.Notify();
// Wait for user
Console.ReadKey();
}
public ConcreteObserver(ConcreteSubject subject, string name)
{
Subject = subject;
_name = name;
}
public ConcreteObserver(ConcreteSubject sub)
{
subject = sub;
}
// Constructor
public ConcreteObserver(
ConcreteSubject subject, string name)
{
this._subject = subject;
this._name = name;
}