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26 lines
1.9 KiB
Markdown
26 lines
1.9 KiB
Markdown
---
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title: "How to: Create a Multiline TextBox Control"
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description: Learn how to use XAML to define a TextBox control that expands to accommodate multiple lines of text in a Windows Presentation Foundation application.
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ms.date: "03/30/2017"
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helpviewer_keywords:
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- "TextBox control [WPF], multiple lines of text"
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ms.assetid: 05914a93-d0ea-4a9a-b693-09df7d4e2ac2
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---
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# How to: Create a Multiline TextBox Control
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This example shows how to use [!INCLUDE[TLA#tla_xaml](../../../includes/tlasharptla-xaml-md.md)] to define a <xref:System.Windows.Controls.TextBox> control that will automatically expand to accommodate multiple lines of text.
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## Example
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Setting the <xref:System.Windows.Controls.TextBox.TextWrapping%2A> attribute to **Wrap** will cause entered text to wrap to a new line when the edge of the <xref:System.Windows.Controls.TextBox> control is reached, automatically expanding the <xref:System.Windows.Controls.TextBox> control to include room for a new line, if necessary.
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Setting the <xref:System.Windows.Controls.Primitives.TextBoxBase.AcceptsReturn%2A> attribute to **true** causes a new line to be inserted when the RETURN key is pressed, once again automatically expanding the <xref:System.Windows.Controls.TextBox> to include room for a new line, if necessary.
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The <xref:System.Windows.Controls.Primitives.TextBoxBase.VerticalScrollBarVisibility%2A> attribute adds a scroll bar to the <xref:System.Windows.Controls.TextBox>, so that the contents of the <xref:System.Windows.Controls.TextBox> can be scrolled through if the <xref:System.Windows.Controls.TextBox> expands beyond the size of the frame or window that encloses it.
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[!code-xaml[TextBox_MiscCode#_MultilineTextBoxXAML](~/samples/snippets/csharp/VS_Snippets_Wpf/TextBox_MiscCode/CSharp/Window1.xaml#_multilinetextboxxaml)]
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## See also
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- <xref:System.Windows.TextWrapping>
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- [TextBox Overview](textbox-overview.md)
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- [RichTextBox Overview](richtextbox-overview.md)
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