TextBoxBase.CanUndo Property

Definition

Namespace:

System.Windows.Controls.Primitives

Assembly:

PresentationFramework.dll

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

public:
 property bool CanUndo { bool get(); };

public bool CanUndo { get; }

member this.CanUndo : bool

Public ReadOnly Property CanUndo As Boolean

Property Value

Boolean

true if the most recent action can be undone; otherwise, false.

This property has no default value.

Examples

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();
    }
}

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

See also

• CanRedo
• Redo()
• Undo()