static void Main(string[] args)
{
Shape shape = new Shape();
Sub1 sb = new Sub1(shape);
Sub2 sb2 = new Sub2(shape);
shape.Draw();
}
static void Main(string[] args)
{
Shape shape = new Shape();
Subscriber1 sub = new Subscriber1(shape);
Subscriber2 sub2 = new Subscriber2(shape);
shape.Draw();
// Keep the console window open in debug mode.
System.Console.WriteLine("Press any key to exit.");
System.Console.ReadKey();
}
public Sub2(Shape shape)
{
IShape obj = (IShape)shape;
obj.OnDraw += new EventHandler(obj_OnDraw);
}
public Sub1(Shape shape)
{
IDrawObject obj = (IDrawObject)shape;
obj.OnDraw += new EventHandler(obj_OnDraw);
}
public Subscriber2(Shape shape)
{
IShape d = (IShape)shape;
d.OnDraw += new EventHandler(d_OnDraw);
}
// References the shape object as an IDrawingObject
public Subscriber1(Shape shape)
{
IDrawingObject d = (IDrawingObject)shape;
d.OnDraw += new EventHandler(d_OnDraw);
}