title: How to use a path data from a resource dictionary in UWP
body: <p>This is trivial thing but yet it does not work. </p>
  
  <p>I have something like this (it is in its own folder)</p>
  
  <pre><code>&lt;ResourceDictionary&gt;
      &lt;Path x:Key="Test"
            Stroke="Black"
            Fill="Gray" 
            Data="M 10,100 C 10,300 300,-200 300,100" /&gt;
  &lt;/ResourceDictionary&gt;
  </code></pre>
  
  <p>Now I want to use it</p>
  
  <pre><code>&lt;Page&gt;
      &lt;Page.Resources&gt;
          &lt;ResourceDictionary&gt;
              &lt;ResourceDictionary.MergeDictionaries&gt;
                  &lt;ResourceDictionary Source="MyFolder/MyResourceDictionary.xaml/&gt;
              &lt;/ResourceDictionary.MergeDictionaries&gt;
          &lt;/ResourceDictionary&gt;
      &lt;/Page.Resources&gt;
      &lt;ContentPresenter Content="{StaticResource Test}"/&gt;
  &lt;Page/&gt;
  </code></pre>
  
  <p>This will throw an exception, but I don't understand why. Exactly the same scenario in wpf works fine.</p>