public static void ExecuteMain()
{
TestDeleGate td = new TestDeleGate();
TestDeleGate.ShowMessage message = null;
message += new TestDeleGate.ShowMessage(td.message1);
message += new TestDeleGate.ShowMessage(td.message2);
message += new TestDeleGate.ShowMessage(td.message3);
message("Hello Multicast Delegates"); //Print Delegates 1 to 3
message -= new TestDeleGate.ShowMessage(td.message2);
Console.WriteLine("----------------------");
message("Message 2 Removed"); //Print Delegates 1 and 3
Console.ReadKey();
}
static void Main(string[] args)
{
TestDeleGate td = new TestDeleGate();
TestDeleGate.ShowMessage message = null;
message += new TestDeleGate.ShowMessage(td.message1);
message += new TestDeleGate.ShowMessage(td.message2);
message += new TestDeleGate.ShowMessage(td.message3);
message("Hello Multicast Delegates");
message -= new TestDeleGate.ShowMessage(td.message2);
Console.WriteLine("----------------------");
message("Message 2 Removed");
Console.ReadKey();
Console.WriteLine("--------------------------------------------------------");
// Create an instance of the class in which the delegate lived
PaulsDelegate paulsDelegate = new PaulsDelegate();
// Create an empty delegate "chain" - this is an instance of the delegate in the class you created above
PaulsDelegate.CalculateSquare outputNumber = null;
// So, lets add a "new" delegate into the "chain". Here we need to instantiate another new delegate to add to your existing delegate - adding to the chain, so to speak
outputNumber += new PaulsDelegate.CalculateSquare(paulsDelegate.SquareOnce);
// Now lets add another delegate into the chain, shall we?
outputNumber += new PaulsDelegate.CalculateSquare(paulsDelegate.SquareTwice);
// And let's invoke that, shall we?
outputNumber(5.0);
// What you'll then see is that both outputs get spat out! The delegates are called one after another
Console.ReadKey();
// Now lets remove one of the delegates - say the first one?
outputNumber -= new PaulsDelegate.CalculateSquare(paulsDelegate.SquareOnce);
// and see that we only get the second one
outputNumber(5.0);
Console.ReadKey();
}
