What is the best way to communicate events between ViewModels in a .Net WPF MVVM application?

Hi:

I am creating  a .Net WPF application that is a dashboard.
I am implementing the dashboard using the MVVM framework.
I need the ability to communicate events between different View Models on the dashboard.
This to me feels like a pub/sub events model.

What is the best way to implement a solution which fits well with the MVVM FrameWork?
I started to look at Prism, but am wondering if that is a little heavy handed for my needs.

Can someone recommend a best practices approach and point me to some simple
examples of implementation?

Thanks,
JohnB
LVL 1
jxbmaSoftware ConsultantAsked:
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Steve SynanCommented:
For simple applications I like using MVVM Light Toolkit

It contains a Messenger object which really simplifies passing messages between decoupled view models.

Here's a link to the devs blog about the newer Messenger version, which might be a good place to start (plenty of examples can be found by doing a google search for 'MVVM Light Toolkit Messenger' as well).
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