Memento.Mementor.Redo C# (CSharp) Method

        public void Redo()
        {
            if (!CanRedo) throw new InvalidOperationException("There is nothing to redo");
            if (IsInBatch) throw new InvalidOperationException("Finish the active batch first");

            var @event = _redoStack.Pop();
            RollbackEvent(@event is BatchEvent ? new BatchEvent((BatchEvent) @event) : @event, false);
            NotifyChange(@event);
        }