title: Reste telerik Theme after add <Style>
body: <p>I want to change my WPF &amp; C# code to telerik. Before change i have HeaderContentControl with some Workspaces</p>
  
  <p><strong>My XAML code</strong></p>
  
  <pre><code>&lt;HeaderedContentControl 
        Content="{Binding Workspaces}"
        ContentTemplate="{StaticResource WorkspacesTemplate}"
        Style="{StaticResource MainHCCStyle}"
  /&gt;
  </code></pre>
  
  <p><strong>My Resources</strong></p>
  
  <pre><code>&lt;Style x:Key="MainHCCStyle" TargetType="{x:Type HeaderedContentControl}&gt;
   &lt;Setter Property="Template"&gt;
    &lt;Setter.Value&gt;
      &lt;ControlTemplate TargetType="{x:Type HeaderedContentControl}&gt;
        &lt;DockPanel&gt;
          &lt;ContentPresenter 
            ContentSource="Content" 
             ContentTemplate="{TemplateBinding ContentTemplate}" 
           /&gt;
         &lt;/DockPanel&gt;
       &lt;/ControlTemplate&gt;
     &lt;/Setter.Value&gt;
   &lt;/Setter&gt;
  &lt;/Style&gt;
  
  &lt;DataTemplate x:Key="WorkspacesTemplate"&gt;
          &lt;TabControl 
        IsSynchronizedWithCurrentItem="True" 
        ItemsSource="{Binding}" 
        ItemTemplate="{StaticResource ClosableTabItemTemplate}"
        Margin="4"
        /&gt;
  &lt;/DataTemplate&gt;
  </code></pre>
  
  <p>After modify code to Telerik my code looks like</p>
  
  <p><strong>My XAML code</strong></p>
  
  <pre><code>&lt;telerik:RadTabbedWindow
    Content="{Binding Workspaces}"
    ContentTemplate="{StaticResource WorkspacesTemplate}"
    telerik:StyleManager.Theme="Office2016"
    Style="{StaticResource MainHCCStyle}"
    /&gt;
  </code></pre>
  
  <p><strong>My Resources</strong></p>
  
  <pre><code>&lt;Style x:Key="MainHCCStyle" TargetType="{x:Type telerik:RadTabbedWindow}"&gt;
          &lt;Setter Property="Template"&gt;
              &lt;Setter.Value&gt;
                  &lt;ControlTemplate TargetType="{x:Type telerik:RadTabbedWindow}"&gt;
                      &lt;DockPanel&gt;
                          &lt;ContentPresenter 
                ContentSource="Content" 
                ContentTemplate="{TemplateBinding ContentTemplate}" 
                /&gt;
                      &lt;/DockPanel&gt;
                  &lt;/ControlTemplate&gt;
              &lt;/Setter.Value&gt;
          &lt;/Setter&gt;
      &lt;/Style&gt;
  
  &lt;DataTemplate x:Key="WorkspacesTemplate"&gt;
          &lt;TabControl 
        IsSynchronizedWithCurrentItem="True" 
        ItemsSource="{Binding}" 
        ItemTemplate="{StaticResource ClosableTabItemTemplate}"
        Margin="4"
        /&gt;
  
  &lt;/DataTemplate&gt;
  </code></pre>
  
  <p>Workspaces wors ok, but Telerik theme doesn't work ( <strong>telerik:StyleManager.Theme="Office2016"</strong>). Styles only activate if I delete them <strong>Style="{StaticResource MainHCCStyle}"</strong>, however then workspaces doesn't work</p>