sending TAB key in WPF

 public static void Enter_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Enter)
            {
                e.Handled = true;
                KeyEventArgs eInsertBack = new KeyEventArgs(Keyboard.PrimaryDevice, Keyboard.PrimaryDevice.ActiveSource, 0, Key.Tab);
                eInsertBack.RoutedEvent = UIElement.KeyDownEvent;
                InputManager.Current.ProcessInput(eInsertBack);
            }
        }