MVVM light - how to access property in other view model

Question

I\'m using mvvm light to build a Silverlight application. Is there a code snippet that shows how to access a view model\'s property or command from within another view model

Answer 1

You could use the Messenger to do this: Send the user in the UserViewModel:

Messenger.Send(userInstance);

would just send the user to anyone interested.

And register a recipient in your CardViewModel:

Messenger.Register(this, delegate(User curUser){_curUser = curUser;});

or you can also send a request from your CardViewModel for shouting the user:

Messenger.Send("Gimme user");

And react on that in the UserViewModel:

Messenger.Register(this, delegate(String msg)
{
if(msg == "Gimme user")
Messenger.Send(userInstance);
});

(You better use an enum and not a string in a real scenario :) )

Perhabs you can even response directly but I can't check it at the moment.

Just check this out: Mvvm light Messenger