C# (CSharp) Models Book.MovePrevious примеры использования

Пример #1

        public bool MovePrevious()
        {
            if (_book.MovePrevious() == false) return false;

            _book.MovePrevious();

            return true;
        }

Пример #2

        public bool MovePrevious()
        {
            var bmp = _book.Page;

            if (_book.MovePrevious())
            {
                _y = 0;
                return(true);
            }
            else
            {
                return(false);
            }
        }