//Listing 82
public static void CreateAndRaise()
{
Pub p = new Pub();
p.OnChange += () => Console.WriteLine("Event Raised to method 1");
p.OnChange += () => Console.WriteLine("Event Raised to method 2");
p.Raise();
}
public static void CreateAndRaiseOne()
{
Pub p = new Pub();
//the below code is incorrect, an event cannot be directly assigned to operator
//p.OnChangeOne = () => Console.WriteLine("Event Raised to method 1");
p.OnChangeOne += () => Console.WriteLine("Event Raised to method 2");
p.RaiseOne();
}
//Listing 87
public static void CreateAndRaiseFour()
{
Pub p = new Pub();
p.OnChangeFour += (sender, e) => Console.WriteLine("Subscriber 1 called");
p.OnChangeFour += (sender, e) => { throw new Exception(); }; /*Console.WriteLine("Subscriber 2 called");*/
p.OnChangeFour += (sender, e) => Console.WriteLine("Subscriber 3 called");
try { p.RaiseFour();}
catch(AggregateException ex) { Console.WriteLine(ex.InnerExceptions.Count); }
}
//Listing 84
public static void CreateAndRaiseTwo()
{
Pub p = new Pub();
p.OnChangeTwo += (sender, e) => Console.WriteLine("Event raised: {0}", e.Value);
p.RaiseTwo();
}