public ActionResult Index(string searchString, int page = 1, int pageSize = 2) { var cate = new CategoryData().ListAll(); int i = 0; foreach (var item in cate) { item.DisplayOrder = i; new CategoryData().UpdateOrder(item); i++; } var data = new CategoryData(); var model = data.ListAllCategory(searchString, page, pageSize); ViewBag.SearchString = searchString; return(View(model)); }