public ActionResult Index(string sortOrder, string searchString)
{
ViewBag.NameSortParm = string.IsNullOrEmpty(sortOrder) ? "name_desc" : "";
ViewBag.IdSortParm = sortOrder == "Id" ? "id_desc" : "Id";
List <Variant> variants = _vRepository.LoadList(sortOrder, searchString);
ViewBag.SelectedType = "Variant";
ViewBag.Sortable = true;
ViewBag.SearchString = searchString;
return(View(variants));
}