Кэширование

[Heidel]

[OutputCache(Duration=60)]( продолжительность в секундах)

        [OutputCache(Duration=60)]
        public ActionResult Index(string searchTerm = null, int page = 1)
        {

            var model =
                _db.Restaurants
                   .OrderByDescending(r => r.Reviews.Average(review => review.Rating))
                   .Where(r => searchTerm == null || r.Name.StartsWith(searchTerm))
                   .Select(r => new RestaurantListViewModel
                            {
                                Id = r.Id,
                                Name = r.Name,
                                City = r.City,
                                Country = r.Country,
                                CountOfReviews = r.Reviews.Count()
                            }).ToPagedList(page, 10);

            if (Request.IsAjaxRequest())
            {
                return PartialView("_Restaurants", model);
            }
            
            return View(model);
        }

Можно задать кеширование только для дочерних элементов

        [ChildActionOnly]
        [OutputCache(Duration = 60)]
        public ActionResult SayHello()
        {
            return Content("Hello");
        }

В виде

@Html.Action("SayHello");

Output Cache Settings

VaryByParam
"*"
"none"
"name"

Location где выполняется кеширование

VaryByHeader

VaryByCustom

SqlDependency

[OutputCache(Duration=360, VaryByHeader="X-Requested-With", Location = OutputCacheLocation.Server)]
        public ActionResult Index(string searchTerm = null, int page = 1)
        {

            var model =
                _db.Restaurants
                   .OrderByDescending(r => r.Reviews.Average(review => review.Rating))
                   .Where(r => searchTerm == null || r.Name.StartsWith(searchTerm))
                   .Select(r => new RestaurantListViewModel
                            {
                                Id = r.Id,
                                Name = r.Name,
                                City = r.City,
                                Country = r.Country,
                                CountOfReviews = r.Reviews.Count()
                            }).ToPagedList(page, 10);

            if (Request.IsAjaxRequest())
            {
                return PartialView("_Restaurants", model);
            }
            
            return View(model);
        }

Cache Profiles

В файле Web.config в секции <system.web>

  <system.web>

    <caching>
      <outputCacheSettings>
        <outputCacheProfiles>
          <add name="Long" duration="300" />
          <add name="Short" duration="3" />
        </outputCacheProfiles>
      </outputCacheSettings>
    </caching>

После этого профили можно использовать в контроллере

[OutputCache(CacheProfile="Long", VaryByHeader="X-Requested-With", Location = OutputCacheLocation.Server)]
        public ActionResult Index(string searchTerm = null, int page = 1)
        {//...}

@темы: ASP.NET MVC, С#, Caching, Output Caching, Учебники