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 ReadOnly Property CanUndo As Boolean

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 Sub undoAction(ByVal sender As Object, ByVal e As RoutedEventArgs)
    If myTextBox.CanUndo = True Then
        myTextBox.Undo()
    Else : Return
    End If
End Sub

.NET Framework
Available since 3.0
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