public void UnRegisterListener(INoKeyboardInStockListener existingListner) { noKeyboardInStockListeners.Remove(existingListner); }
/// <summary> /// Register Listers who are interested to listen when keybaord will be empty in stock. /// </summary> /// <param name="newListner"></param> public void RegisterListener(INoKeyboardInStockListener newListner) { noKeyboardInStockListeners.Add(newListner); }