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copied!<p>All the code looks normal, except for the style of <code>MenuItemIcon</code>. Quote about <code>TemplateBinding</code> from Adam Nathan book:</p> <blockquote> <p>TemplateBinding doesn’t work outside a template or outside its VisualTree property, so you can’t even use TemplateBinding inside a template’s trigger. Furthermore, TemplateBinding doesn’t work when applied to a Freezable (for mostly artificial reasons).</p> </blockquote> <p>And quote from <a href="http://msdn.microsoft.com/ru-ru/library/system.windows.media.visualbrush.aspx" rel="nofollow"><code>MSDN</code></a> about <code>VisualBrush</code>:</p> <blockquote> <p>Freezable Features: Because it inherits from the Freezable class, the VisualBrush class provides several special features: VisualBrush objects can be declared as resources and shared among multiple objects.</p> </blockquote> <p>Therefore instead of:</p> <pre><code><VisualBrush Visual="{TemplateBinding Source}" /> </code></pre> <p>Use the construction <code>{RelativeSource TemplatedParent}</code> and a <code>Path</code> equal to the dependency property whose value you want to retrieve:</p> <pre><code><Style TargetType="{x:Type local:MenuItemIcon}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type local:MenuItemIcon}"> <Rectangle Width="22" Height="22"> <Rectangle.Fill> <VisualBrush Visual="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Source}" /> </Rectangle.Fill> </Rectangle> </ControlTemplate> </Setter.Value> </Setter> </Style> </code></pre>

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