title: Prism: How to inject a view-model instance in a region?
body: <p>After weeks of using Prism I have been through every kind of navigation methods. But there is still one thing that I haven't been able to achieve with Prism "out-of-the-box": navigate to a view-model instance. It is really easy to navigate to a view-model or view <strong>type</strong> but there is actually no way to navigate to a real view-model <strong>instance</strong>.</p>
  
  <p>For example when I have a list of different view-model instances (different type too), if one is selected and I want to display it in my content region, I cannot achieve it unless I publish the change through event aggregation and I do not want that because this gets me stuck to one kind of view in my content region. What I want to do is to register a view-model instance into a region, so the view can load dynamically from data templates.</p>
  
  <p>Actually I achieved to do this by creating a RegisterViewModelWithRegion as an extension method to RegionManager, it works well but it is not really neat as I have to manually lookup through my application resources, load the view, attach my view-model instance and then add the view to my region.</p>
  
  <p>I really feel that I am missing something into the architecture because this kind of practice seem obvious to me but apparently I cannot find anybody having the same concern.</p>
  
  <p>Your help and experience would much appreciated.
  Thanks.</p>