public void UpdatePagingItems(Pager pager)
{
Argument.IsNotNull(() => pager);
if (pager.ItemsPerPage == 0)
{
return;
}
int leftPages;
int rightPages;
var currentPage = GetPagesCount(pager, out leftPages, out rightPages);
FillLeftPages(pager, leftPages, currentPage);
FillRightPages(pager, rightPages, currentPage);
}