public Paging(int itemCount, int pageSize, int?currentPage = null)
{
ArgGuard.MakeSure(itemCount >= 0, nameof(itemCount));
ArgGuard.MakeSure(pageSize >= 1, nameof(pageSize));
var(totalPages, actualCurrentPage) = NormalizePaging(itemCount, pageSize, currentPage);
this.ItemCount = itemCount;
this.PageSize = pageSize;
this.TotalPages = totalPages;
this.CurrentPage = actualCurrentPage;
}
