public static void Main(string[] args)
{
C1 c1 = new C1(); // create instance of class that raises event
L1 l1 = new L1(); // create instance of 1st class that handles event
L2 l2 = new L2(); // create instande of 2nd class that handles event
// no handlers are yet registered on the event
try
{
c1.Raise(); // will crash and output exception as no handler set yet
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
c1.SafeRaise(); // safe, will print message
l1.AddListener(c1); // add as listener
c1.Raise(); // prints handled message
l2.AddListener(c1); // add 2nd listener
c1.Raise(); // both print handled message
Console.ReadLine(); // stop console from closing
}
public static void Main(string[] args)
{
C1 c1 = new C1();
L1 l1 = new L1();
L2 l2 = new L2();
try
{
c1.Raise(); // will crash
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
c1.Raise2(); // safe
l1.AddListener(c1);
c1.Raise();
l2.AddListener(c1); // more then 1 listener possible
c1.Raise();
Console.ReadLine();
}