Question

I’m new to WP7 and coming from iPhone development. On iPhone I’m used to use NSNotificationCenter to notify my program of something. NSNotificationCenter is build-in the framework out of the box. Is there something similar in WP7? I stumbled uppon MVVM-Light Toolkit but I’m not sure how to use it correctly.

What I want to do:

• Register to an Notification-Id and do something when Notification-Id is received
• Send Notification with Notification-Id and a context (object to pass to observers)
• Everyone who registers to the same Notification-Id will be notified

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So something like: Registering

NotificationCenter.Default.register(receiver, notification-id, delegate);

Sending:

NotificationCenter.Default.send(notification-id, context);

Example for Registering:

NotificationCenter.Default.register(this, NotifyEnum.SayHello, m => Console.WriteLine("hello world with context: " + m.Context));

Sending …

NotificationCenter.Default.send(NotifyEnum.SayHello, "stackoverflow context");

Answer 1

Here is how to do with the MVVM Light Toolkit:

Registering:

Messenger.Default.Register<string>(this, NotificationId, m => Console.WriteLine("hello world with context: " + m.Context));

Sending:

Messenger.Default.Send<string>("My message", NotificationId);