title: ChildWindow Loading Issue in Prism 4.1 Silverlight 5 Telerik Application
body: <p>In my RadGridView Column I've a button which is Bind to a DelegateCommand for this I want to Load a ChildWindow Popup (For now Silverlight ChildWindow May Be later TelerikWindowAs I'm looking for work around).
  I'm trying to follow
  <a href="http://compositewpf.codeplex.com/workitem/9676" rel="nofollow">http://compositewpf.codeplex.com/workitem/9676</a> but when I try to add code.</p>
  
  <pre><code> &lt;i:Interaction.Triggers&gt;
      &lt;prism:InteractionRequestTrigger SourceObject="{Binding InteractionRequest}"&gt;
          &lt;InteractionRequest:PopupInteractionRequestChildWindow&gt;
              &lt;InteractionRequest:PopupInteractionRequestChildWindow.ChildWindow&gt;
                  &lt;Views:PrismMVVMChildWindow /&gt;
              &lt;/InteractionRequest:PopupInteractionRequestChildWindow.ChildWindow&gt;
          &lt;/InteractionRequest:PopupInteractionRequestChildWindow&gt;
      &lt;/prism:InteractionRequestTrigger&gt;
  &lt;/i:Interaction.Triggers&gt;
  </code></pre>
  
  <p>says Not found schema. I already added but after typing 
  
  <pre><code> xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity" 
  to 
  xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Inte‌​ractivity"
  </code></pre>
  
  <p>Says No dll found. 
  After this I try addling Microsoft.Expression.Interactions in reference but no Success. it always say </p>
  
  <pre><code>&lt;i: &lt;Uunknow&gt;&gt;  error.
  </code></pre>
  
  <p>How to solve it. I'm working with Visual Studio 2013.</p>