title: Interaction.Triggers causing 'XamlParseException' at design time
body: <p>Did anyone else encounter this problem? I am using Visual Stuido 2015 Prof. and when I use Interaction.Triggers in an ItemsControl.ItemTemplate the designer throws following exeption:</p>
  
  <pre><code>'XamlParseException: Collection property 'System.Windows.Controls.AnyControl'.'Triggers' is null.'
  </code></pre>
  
  <p>(AnyControl: If I put the trigger inside an Image, it's Image etc.)</p>
  
  <p>The program is´running as expected at runtime without any problems.</p>
  
  <p>That's a little annoying since I have to comment/uncomment the triggers everytime when I want to see the designer view.</p>
  
  <p>Example code snippet part:</p>
  
  <pre><code>&lt;Grid&gt;
      &lt;ItemsControl ItemsSource="{Binding Currencies}"&gt;
          &lt;ItemsControl.ItemTemplate&gt;
              &lt;DataTemplate&gt;
                  &lt;Grid Margin="3,3,20,3"&gt;
  
                      &lt;StackPanel Grid.Column="0" Margin="0,0,2,0" VerticalAlignment="Center" Background="Transparent"&gt;
                          &lt;i:Interaction.Triggers&gt;
                              &lt;i:EventTrigger EventName="MouseEnter"&gt;
                                  &lt;i:InvokeCommandAction Command="{Binding DataContext.MouseEnterCommand, RelativeSource={RelativeSource AncestorType=Window}}" 
                                                             CommandParameter="{Binding .}" /&gt;
                              &lt;/i:EventTrigger&gt;
                          &lt;/i:Interaction.Triggers&gt;
  
                          &lt;Image Width="50" Height="50"
                                 Source="{Binding Settings.ActiveImage}" ToolTipService.ShowDuration="30000"&gt;
  </code></pre>
  
  <p>etc.</p>