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    <p>Your code is working fine for me. I have just removed unneccessary code, added margin for child elements and change to bold only group elements. </p> <pre><code> &lt;HierarchicalDataTemplate x:Key="NavGroupTemplate" ItemsSource="{Binding Items}"&gt; &lt;TextBlock Text="{Binding Name}" /&gt; &lt;/HierarchicalDataTemplate&gt; &lt;Style x:Key="RootItemStyle" TargetType="{x:Type TreeViewItem}"&gt; &lt;Setter Property="IsExpanded" Value="True"/&gt; &lt;Setter Property="Template"&gt; &lt;Setter.Value&gt; &lt;ControlTemplate TargetType="TreeViewItem"&gt; &lt;Grid&gt; &lt;Expander x:Name="Exp" IsExpanded="{TemplateBinding TreeViewItem.IsExpanded}"&gt; &lt;Expander.Header&gt; &lt;ContentPresenter x:Name="ExpCP" ContentSource="Header" TextElement.FontWeight="Bold" /&gt; &lt;/Expander.Header&gt; &lt;ItemsPresenter /&gt; &lt;/Expander&gt; &lt;Border x:Name="CP" Padding="35,0,0,0" Background="{TemplateBinding Background}" Visibility="Collapsed"&gt; &lt;ContentPresenter ContentSource="Header" HorizontalAlignment="Left" VerticalAlignment="Center" /&gt; &lt;/Border&gt; &lt;/Grid&gt; &lt;ControlTemplate.Triggers&gt; &lt;Trigger Property="HasItems" Value="false"&gt; &lt;Setter TargetName="Exp" Property="Visibility" Value="Collapsed"/&gt; &lt;Setter TargetName="CP" Property="Visibility" Value="Visible" /&gt; &lt;/Trigger&gt; &lt;Trigger Property="IsSelected" Value="True"&gt; &lt;Setter Property="Background" Value="Red"/&gt; &lt;/Trigger&gt; &lt;/ControlTemplate.Triggers&gt; &lt;/ControlTemplate&gt; &lt;/Setter.Value&gt; &lt;/Setter&gt; &lt;/Style&gt; &lt;TreeView ItemsSource="{Binding}" ItemTemplate="{StaticResource NavGroupTemplate}" ItemContainerStyle="{StaticResource RootItemStyle}"&gt; &lt;/TreeView&gt; </code></pre> <p>Can you please describe your problem in details, so I can have more idea ?</p>
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    1. POWPF TreeView - Group Nodes Style
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    1. USUpendra Chaudhari
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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