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    copied!<p>As you guessed correctly, templates and triggers are indeed your friend here.</p> <p>Here is an implementation using the <code>ContentControl</code>:</p> <pre><code>&lt;ContentControl Content="{Binding Path=UserAvatar}"&gt; &lt;ContentControl.ContentTemplate&gt; &lt;DataTemplate&gt; &lt;Image x:Name="image" Source="{Binding}"/&gt; &lt;DataTemplate.Triggers&gt; &lt;DataTrigger Binding="{Binding}" Value="{x:Null}"&gt; &lt;Setter TargetName="image" Property="Source" Value="--your awesome default image here--" /&gt; &lt;/DataTrigger&gt; &lt;/DataTemplate.Triggers&gt; &lt;/DataTemplate&gt; &lt;/ContentControl.ContentTemplate&gt; &lt;/ContentControl&gt; </code></pre> <p>And in the situation when your default thingy is no <code>ImageSource</code>, and you wish to play around a bit with other controls, you can always resort to the <code>Visibilty</code> property:</p> <pre><code>&lt;ContentControl Content="{Binding Path=UserAvatar}"&gt; &lt;ContentControl.ContentTemplate&gt; &lt;DataTemplate&gt; &lt;Grid&gt; &lt;Image x:Name="image" Source="{Binding}" /&gt; &lt;Canvas x:Name="defaultImage" Visibility="Collapsed" /&gt; &lt;/Grid&gt; &lt;DataTemplate.Triggers&gt; &lt;DataTrigger Binding="{Binding}" Value="{x:Null}"&gt; &lt;Setter TargetName="image" Property="Visibility" Value="Collapsed" /&gt; &lt;Setter TargetName="defaultImage" Property="Visibility" Value="Visible" /&gt; &lt;/DataTrigger&gt; &lt;/DataTemplate.Triggers&gt; &lt;/DataTemplate&gt; &lt;/ContentControl.ContentTemplate&gt; &lt;/ContentControl&gt; </code></pre> <p>Hope this helps..</p>
 

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