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53 lines
3.3 KiB
Markdown
53 lines
3.3 KiB
Markdown
---
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title: "ScrollViewer Styles and Templates"
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ms.date: "03/30/2017"
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helpviewer_keywords:
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- "parts [WPF], ScrollViewer"
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- "states [WPF], ScrollViewer"
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- "styles [WPF], ScrollViewer"
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- "templates [WPF], ScrollViewer"
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- "ControlTemplate [WPF], ScrollViewer"
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- "ScrollViewer [WPF], styles and templates"
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ms.assetid: dffdd822-ae69-4946-abaf-710860cd65b2
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---
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# ScrollViewer Styles and Templates
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This topic describes the styles and templates for the <xref:System.Windows.Controls.ScrollViewer> 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).
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## ScrollViewer Parts
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The following table lists the named parts for the <xref:System.Windows.Controls.ScrollViewer> control.
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|Part|Type|Description|
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|PART_ScrollContentPresenter|<xref:System.Windows.Controls.ScrollContentPresenter>|The placeholder for content in the <xref:System.Windows.Controls.ScrollViewer>.|
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|PART_HorizontalScrollBar|<xref:System.Windows.Controls.Primitives.ScrollBar>|The <xref:System.Windows.Controls.Primitives.ScrollBar> used to scroll the content horizontally.|
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|PART_VerticalScrollBar|<xref:System.Windows.Controls.Primitives.ScrollBar>|The <xref:System.Windows.Controls.Primitives.ScrollBar> used to scroll the content vertically.|
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## ScrollViewer States
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The following table lists the visual states for the <xref:System.Windows.Controls.ScrollViewer> control.
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|VisualState Name|VisualStateGroup Name|Description|
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|-|-|-|
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|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`.|
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|InvalidFocused|ValidationStates|The <xref:System.Windows.Controls.Validation.HasError%2A?displayProperty=nameWithType> attached property is `true` has the control has focus.|
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|InvalidUnfocused|ValidationStates|The <xref:System.Windows.Controls.Validation.HasError%2A?displayProperty=nameWithType> attached property is `true` has the control does not have focus.|
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## ScrollViewer ControlTemplate Example
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The following example shows how to define a <xref:System.Windows.Controls.ControlTemplate> for the <xref:System.Windows.Controls.ScrollViewer> control.
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[!code-xaml[ControlTemplateExamples#ScrollViewer](~/samples/snippets/csharp/VS_Snippets_Wpf/ControlTemplateExamples/CS/resources/scrollviewer.xaml#scrollviewer)]
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The preceding example uses one or more of the following resources.
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[!code-xaml[ControlTemplateExamples#Resources](~/samples/snippets/csharp/VS_Snippets_Wpf/ControlTemplateExamples/CS/resources/shared.xaml#resources)]
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For the complete sample, see [Styling with ControlTemplates Sample](https://github.com/Microsoft/WPF-Samples/tree/master/Styles%20&%20Templates/IntroToStylingAndTemplating).
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## See also
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- <xref:System.Windows.FrameworkElement.Style%2A>
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- <xref:System.Windows.Controls.ControlTemplate>
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- [Control Styles and Templates](control-styles-and-templates.md)
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- [Control Customization](control-customization.md)
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- [Styling and Templating](/dotnet/desktop-wpf/fundamentals/styles-templates-overview)
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- [Create a template for a control](/dotnet/desktop-wpf/themes/how-to-create-apply-template)
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