//Definition of events
//A mechanism for communication btw objects
//Used in building Loosely coupled apps
//Helps extending apps
//Usage
// event publisher => event receiver/handler
//Delegates
//Agreement/contract btw Publisher and Subscriber
//Determines the signature of the event handler method in Subscriber
static void Main(string[] args)
{
var video = new Video() { Title = "Video 1" };
var videoEncoder = new VideoEncoder();//publisher
var mailService = new MailService();//subscriber
var messageService = new MessageService(); // subscriber
videoEncoder.VideoEncoded += mailService.OnVideoEncoded;
videoEncoder.VideoEncoded += messageService.OnVideoEncoded;
videoEncoder.Encode(video);
}
static void Main(string[] args)
{
//EVENTS
//a mechanism for communication between objects...it can notify objects something has happened.
//used in building loosely coupled applications
//helps extending applications
var video = new Video() { Title = "Video 1" };
var videoEncoder = new VideoEncoder(); //this is the publisher
var mailService = new MailService(); //this is the subscriber
var messageService = new MessageService();
//call and create the subscription
videoEncoder.VideoEncoded += mailService.OnVideoEncoded;
videoEncoder.VideoEncoded += messageService.OnVideoEncoded;
videoEncoder.Encode(video);
}