/// <summary> /// Adds new mass action to the underlying collection. /// </summary> /// <param name="massActionItem">Mass action to be added</param> /// <exception cref="ArgumentNullException"><paramref name="massActionItem"/> is null</exception> public void AddMassAction(MassActionItem massActionItem) { if (massActionItem == null) { throw new ArgumentNullException("massActionItem"); } mMassActions.Add(massActionItem); }