public bool MoveNext()
        {
            if ((PageSize <= 0 || CurrentItemIndex >= MaxNumItems) && CurrentPage > 0)
            {
                return(false);
            }

            if (currentPage == null || CurrentPageItemIndex >= PageSize)
            {
                currentPage = GetNext(new PagerInfo {
                    CurrentPage = ++CurrentPage, PageSize = PageSize
                });
                CurrentPageItemIndex = 0;
            }

            if (currentPage == null)
            {
                return(false);
            }

            //if (currentPage.TotalItems > 0)
            if (currentPage.HasMore)
            {
                currentItem = currentPage.ElementAt(CurrentPageItemIndex++);
                ++CurrentItemIndex;
                return(true);
            }
            return(false);
        }