title: Binded image not appearing in design time
body: <p>Having a sample image I'm using in my WPF control for testing purposes.</p>
  
  <p>The image path is <code>&lt;project_dir&gt;/Assets/Samples/dog.jpg</code></p>
  
  <p>When I enter the image path in the source attribute, it works without any problems (either in design and run time):</p>
  
  <p><code>&lt;Image Source="/Assets/Samples/dog.jpg" Stretch="UniformToFill" /&gt;</code></p>
  
  <p>However, when I move the image path into my ViewModel, it works only in run time for some reason.</p>
  
  <pre><code>public string Image { get; set; }
  
  public MyControlViewModel() {
       Image = "/Assets/Samples/dog.jpg";
  }
  </code></pre>
  
  <p><code>&lt;Image Source="{Binding Image}" Stretch="UniformToFill" /&gt;</code></p>
  
  <hr>
  
  <p>I did change the image build action to <code>Resource</code>, without any results.</p>
  
  <p>Also tried using the resource URI path (<code>pack://application:,,,/Assets/Samples/dog.jpg</code>) - without any results as well.</p>
  
  <hr>
  
  <ul>
  <li>Is this expected behaviour?</li>
  <li>Why does this happends and how can I get it working in design time as well?</li>
  </ul>