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POWPF Databinding and Styles with MVVM
 

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    <p>I have a problem with databinding on a style in WPF.</p> <p>The basic setup looks like this:</p> <pre><code>&lt;Style x:Key="{x:Type eo:Player}" TargetType="{x:Type eo:Player}"&gt; &lt;Style.Triggers&gt; &lt;DataTrigger Binding="{Binding Team}" Value="A"&gt; &lt;Setter Property="Template" Value="{StaticResource TeamATemplate}"&gt;&lt;/Setter&gt; &lt;/DataTrigger&gt; &lt;/Style.Triggers&gt; &lt;/Style&gt; </code></pre> <p>The style is applied to all objects of type Player. These objects have a property of type Teams (Enum having values A, B and C). Depending on which team the player is in the template applied to visualize the player differs.</p> <p>The problem that now occurs is that the whole thing is used in a MVVM application and that somehow the DataContext of the Player object gets set to the ViewModel of the topmost View. I used the new diagnostics options (TraceLevel) to find out something about the problem and got this:</p> <pre><code>System.Windows.Data Warning: 66 : BindingExpression (hash=30607723): Found data context element: Player (hash=35170261) (OK) System.Windows.Data Warning: 74 : BindingExpression (hash=30607723): Activate with root item ToolboxViewModel (hash=61398511) System.Windows.Data Warning: 104 : BindingExpression (hash=30607723): At level 0 - for ToolboxViewModel.Team found accessor &lt;null&gt; </code></pre> <p>So basically the Player object is found as a data context element (whatever that means) but still the ToolboxViewModel is used as DataContext. How can I fix this? How can I refer to the styled object in the binding expression?</p>
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