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TextBoxBase.CanUndo Property

Gets a value that indicates whether the most recent action can be undone.

Namespace:  System.Windows.Controls.Primitives
Assembly:  PresentationFramework (in PresentationFramework.dll)

public bool CanUndo { get; }
You cannot set this property in XAML.

Property Value

Type: System.Boolean
true if the most recent action can be undone; otherwise, false.
This property has no default value.

The following code example demonstrates how to use the CanUndo property to determine whether the most recent action can be undone.

private void undoAction(object sender, RoutedEventArgs e)
{
    if (myTextBox.CanUndo == true)
    {
        myTextBox.Undo();
    }
}

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

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

.NET Framework

Supported in: 3.5, 3.0
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