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TextBoxBase.IsReadOnly Property

Gets or sets a value that indicates whether the text editing control is read-only to a user interacting with the control.

Namespace:  System.Windows.Controls.Primitives
Assembly:  PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
public bool IsReadOnly { get; set; }
<object IsReadOnly="bool" .../>

Property Value

Type: System.Boolean
true if the contents of the text editing control are read-only to a user; otherwise, the contents of the text editing control can be modified by the user. The default value is false.

Identifier field

IsReadOnlyProperty

Metadata properties set to true

Inherits

This value only affects a user who is interacting with the control. The contents of a text editing control can always be modified programmatically.

This example shows how to configure a TextBox control to not allow user input or modification.

To prevent users from modifying the contents of a TextBox control, set the IsReadOnly attribute to true.


<TextBox 
  IsReadOnly="True"
>
  The user may not modify the contents of this TextBox.
</TextBox>


The IsReadOnly attribute affects user input only; it does not affect text set in the Extensible Application Markup Language (XAML) description of a TextBox control, or text set programmatically through the Text property.

The default value of IsReadOnly is false.

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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