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2026-09-07 07:56:07 +02:00 · 2020-09-04 09:46:28 -07:00
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+---
+title: "DocumentViewer Styles and Templates"
+ms.date: "03/30/2017"
+helpviewer_keywords: 
+  - "templates [WPF], DocumentViewer"
+  - "DocumentViewer [WPF], styles and templates"
+  - "states [WPF], DocumentViewer"
+  - "ControlTemplate [WPF], DocumentViewer"
+  - "parts [WPF], DocumentViewer"
+  - "styles [WPF], DocumentViewer"
+ms.assetid: 6bd4ff8f-ea6a-4084-ac58-e7a67446ce1c
+---
+# DocumentViewer Styles and Templates
+This topic describes the styles and templates for the <xref:System.Windows.Controls.DocumentViewer> control. You can modify the default <xref:System.Windows.Controls.ControlTemplate> to give the control a unique appearance. For more information, see [Create a template for a control](/dotnet/desktop-wpf/themes/how-to-create-apply-template).  
+  
+## DocumentViewer Parts  
+ The following table lists the named parts for the <xref:System.Windows.Controls.DocumentViewer> control.  
+  
+|Part|Type|Description|  
+|-|-|-|  
+|PART_ContentHost|<xref:System.Windows.Controls.ScrollViewer>|The content and scrolling area.|  
+|PART_FindToolBarHost|<xref:System.Windows.Controls.ContentControl>|The search box, at the bottom by default.|  
+  
+## DocumentViewer States  
+ The following table lists the visual states for the <xref:System.Windows.Controls.DocumentViewer> control.  
+  
+|VisualState Name|VisualStateGroup Name|Description|  
+|-|-|-|  
+|Valid|ValidationStates|The control uses the <xref:System.Windows.Controls.Validation> class and the <xref:System.Windows.Controls.Validation.HasError%2A?displayProperty=nameWithType> attached property is `false`.|  
+|InvalidFocused|ValidationStates|The <xref:System.Windows.Controls.Validation.HasError%2A?displayProperty=nameWithType> attached property is `true` has the control has focus.|  
+|InvalidUnfocused|ValidationStates|The <xref:System.Windows.Controls.Validation.HasError%2A?displayProperty=nameWithType> attached property is `true` has the control does not have focus.|  
+  
+## DocumentViewer ControlTemplate Example  
+ The following example shows how to define a <xref:System.Windows.Controls.ControlTemplate> for the <xref:System.Windows.Controls.DocumentViewer> control.  
+  
+ [!code-xaml[ControlTemplateExamples#DocumentViewer](~/samples/snippets/csharp/VS_Snippets_Wpf/ControlTemplateExamples/CS/resources/documentviewer.xaml#documentviewer)]  
+  
+ The preceding example uses one or more of the following resources.  
+  
+ [!code-xaml[ControlTemplateExamples#Resources](~/samples/snippets/csharp/VS_Snippets_Wpf/ControlTemplateExamples/CS/resources/shared.xaml#resources)]  
+  
+ For the complete sample, see [Styling with ControlTemplates Sample](https://github.com/Microsoft/WPF-Samples/tree/master/Styles%20&%20Templates/IntroToStylingAndTemplating).  
+  
+## See also
+
+- <xref:System.Windows.FrameworkElement.Style%2A>
+- <xref:System.Windows.Controls.ControlTemplate>
+- [Control Styles and Templates](control-styles-and-templates.md)
+- [Control Customization](control-customization.md)
+- [Styling and Templating](/dotnet/desktop-wpf/fundamentals/styles-templates-overview)
+- [Create a template for a control](/dotnet/desktop-wpf/themes/how-to-create-apply-template)