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25 lines
1.3 KiB
Markdown
25 lines
1.3 KiB
Markdown
---
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title: "How to: Make a TextBox Control Read-Only"
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ms.date: "03/30/2017"
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helpviewer_keywords:
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- "read-only TextBox controls [WPF]"
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- "TextBox control read-only"
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ms.assetid: e707ec59-8b22-473e-b77c-3060a237517a
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---
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# How to: Make a TextBox Control Read-Only
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This example shows how to configure a <xref:System.Windows.Controls.TextBox> control to not allow user input or modification.
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## Example
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To prevent users from modifying the contents of a <xref:System.Windows.Controls.TextBox> control, set the <xref:System.Windows.Controls.Primitives.TextBoxBase.IsReadOnly%2A> attribute to **true**.
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[!code-xaml[TextBox_MiscCode#_ReadOnlyTextBoxXAML](~/samples/snippets/csharp/VS_Snippets_Wpf/TextBox_MiscCode/CSharp/Window1.xaml#_readonlytextboxxaml)]
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The <xref:System.Windows.Controls.Primitives.TextBoxBase.IsReadOnly%2A> attribute affects user input only; it does not affect text set in the [!INCLUDE[TLA#tla_xaml](../../../includes/tlasharptla-xaml-md.md)] description of a <xref:System.Windows.Controls.TextBox> control, or text set programmatically through the <xref:System.Windows.Controls.TextBox.Text%2A> property.
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The default value of <xref:System.Windows.Controls.Primitives.TextBoxBase.IsReadOnly%2A> is **false**.
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## See also
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- [TextBox Overview](textbox-overview.md)
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- [RichTextBox Overview](richtextbox-overview.md)
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