public IActionResult Index(string dataTimKiem, string loaiTimKiem, int PageNumber = 1) { if (dataTimKiem == null) { var model = sanphamService.GetSanPhams(); ViewBag.TotalPages = Math.Ceiling(model.Count() / 1.0); ViewBag.dataTimKiem = dataTimKiem; ViewBag.loaiTimKiem = loaiTimKiem; var user = model.Skip((PageNumber - 1) * 1).Take(1).ToList(); return(View(user)); } else { var model = sanphamService.GetSearchSanPham(dataTimKiem, loaiTimKiem); ViewBag.TotalPages = Math.Ceiling(model.Count() / 1.0); ViewBag.dataTimKiem = dataTimKiem; ViewBag.loaiTimKiem = loaiTimKiem; if (Math.Ceiling(model.Count() / 1.0) <= PageNumber - 1) { var user = model.Skip((1 - 1) * 1).Take(1).ToList(); return(View(user)); } else { var user = model.Skip((PageNumber - 1) * 1).Take(1).ToList(); return(View(user)); } } }