// GET: Orders
public async Task <IActionResult> Index(SortState sortState, int page = 1)
{
OrdersFilterViewModel filter = HttpContext.Session.Get <OrdersFilterViewModel>(filterKey);
if (filter == null)
{
filter = new OrdersFilterViewModel
{
Name = string.Empty
};
HttpContext.Session.Set(filterKey, filter);
}
string key = $"{typeof(Order).Name}-{page}-{sortState}-{filter.Name}";
if (!_cache.TryGetValue(key, out OrderViewModel model))
{
model = new OrderViewModel();
IQueryable <Order> orders = getSortedOrders(sortState, filter.Name);
int count = orders.Count();
model.PageViewModel = new PageViewModel(page, count, pageSize);
model.Orders = count == 0 ? new List <Order>() : orders.Skip((model.PageViewModel.PageIndex - 1) * pageSize).Take(pageSize).ToList();
model.SortViewModel = new SortViewModel(sortState);
model.OrdersFilterViewModel = filter;
_cache.Set(key, model);
}
return(View(model));
}
public IActionResult Index(OrdersFilterViewModel filterModel, int page)
{
OrdersFilterViewModel filter = HttpContext.Session.Get <OrdersFilterViewModel>(filterKey);
if (filter != null)
{
filter.Name = filterModel.Name;
HttpContext.Session.Remove(filterKey);
HttpContext.Session.Set(filterKey, filter);
}
return(RedirectToAction("Index", new { page }));
}