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    <p>Opening up the default control template for ContentControl in Blend reveals why your original approach did not work.</p> <pre><code>&lt;ControlTemplate TargetType="{x:Type ContentControl}"&gt; &lt;ContentPresenter/&gt; &lt;/ControlTemplate&gt; </code></pre> <p>The default template does nothing with the HorizontalContentAlignment property which it inherited from Control. Juxtapose this with Label's default template.</p> <pre><code>&lt;ControlTemplate TargetType="{x:Type Label}"&gt; &lt;Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}" SnapsToDevicePixels="true"&gt; &lt;ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/&gt; &lt;/Border&gt; &lt;ControlTemplate.Triggers&gt; &lt;Trigger Property="IsEnabled" Value="false"&gt; &lt;Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/&gt; &lt;/Trigger&gt; &lt;/ControlTemplate.Triggers&gt; &lt;/ControlTemplate&gt; </code></pre> <p>As we can see, the Label actually binds to the HorizontalContentAlignment. WPF controls are lookless, so there is never a guarantee that a property will be respected by the current ControlTemplate. I would speculate that the WPF designers didn't respect the HorizontalContentAlignment property because people usually place content within that is independent of the ContentControl's properties or perhaps they assumed if someone was going to use such a generic control they would provide their own template, such as...</p> <pre><code>&lt;ContentControl x:Name="ctrl" Width="525"&gt; &lt;ContentControl.Template&gt; &lt;ControlTemplate TargetType="ContentControl"&gt; &lt;Grid&gt; &lt;ContentPresenter VerticalAlignment="{TemplateBinding VerticalContentAlignment}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"/&gt; &lt;/Grid&gt; &lt;/ControlTemplate&gt; &lt;/ContentControl.Template&gt; Hello World! &lt;/ContentControl&gt; </code></pre>
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    1. COI used this work around (my control template doesn't have a grid, it just used the content presenter); however I am still quite confused as to why the HorizontalContentAlignment property doesn't work for a ContentControl even though it seems to work for controls that inherit from it. I updated my original post to include other control attempts.
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    2. CONarohi, thank you for your help.
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    3. COYou're welcome. I'll add some more information to the post.
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