public static void TestLocalVariables()
{
Console.WriteLine("***** Anonymous Methods *****\n");
int aboutToBlowCounter = 0;
// Make a car as usual.
CarEventArgsTest c1 = new CarEventArgsTest("SlugBug", 100, 10);
// Register event handlers as anonymous methods.
c1.AboutToBlow += delegate
{
aboutToBlowCounter++;
Console.WriteLine("Eek! Going too fast!");
};
c1.AboutToBlow += delegate(object sender, CarEventArgs e)
{
aboutToBlowCounter++;
Console.WriteLine("Critical Message from Car: {0}", e.msg);
};
// This will eventually trigger the events.
for (int i = 0; i < 6; i++)
{
c1.Accelerate(20);
}
Console.WriteLine("AboutToBlow event was fired {0} times.",
aboutToBlowCounter);
Console.ReadLine();
}
/* It is possible to associate an event directly to a block of code statements at the time of event registration. Formally, such code
* is termed an anonymous method
*/
public static void TestEventsWithAnonymousMethods()
{
Console.WriteLine("***** Anonymous Methods *****\n");
CarEventArgsTest c1 = new CarEventArgsTest("SlugBug", 100, 10);
// Register event handlers as anonymous methods.
c1.AboutToBlow += delegate
{
Console.WriteLine("Eek! Going too fast!");
};
c1.AboutToBlow += delegate(object sender, CarEventArgs e)
{
Console.WriteLine("Message from Car: {0}", e.msg);
};
c1.Exploded += delegate(object sender, CarEventArgs e)
{
Console.WriteLine("Fatal Message from Car: {0}", e.msg);
};
// This will eventually trigger the events.
for (int i = 0; i < 6; i++)
{
c1.Accelerate(20);
}
Console.ReadLine();
}
public static void TestEventArgs()
{
Console.WriteLine("***** Fun with Events *****\n");
CarEventArgsTest c1 = new CarEventArgsTest("SlugBug", 100, 10);
// Register event handlers.
c1.AboutToBlow += CarAboutToBlow;
c1.Exploded += CarExploded;
Console.WriteLine("***** Speeding up *****");
for (int i = 0; i < 6; i++)
{
c1.Accelerate(20);
}
Console.ReadLine();
}
public static void RetrofitCarEventsWithLambdas()
{
Console.WriteLine("***** More Fun with Lambdas *****\n");
// Make a car as usual.
CarEventArgsTest c1 = new CarEventArgsTest("SlugBug", 100, 10);
// Hook into events with lambdas!
c1.AboutToBlow += (sender, e) => { Console.WriteLine(e.msg); };
c1.Exploded += (sender, e) => { Console.WriteLine(e.msg); };
// Speed up (this will generate the events).
Console.WriteLine("\n***** Speeding up *****");
for (int i = 0; i < 6; i++)
{
c1.Accelerate(20);
}
Console.ReadLine();
}