public JsonResult Compare() { Stopwatch sw = Stopwatch.StartNew(); // Достаем товары из CSV файла string Path = env.WebRootPath + "\\CsvFiles\\"; string[] stringsCSV = CsvWriter.ReadCSVFile("test.csv", Path); List <CsvModel> FileProducts = CsvWriter.FromCsvToCSVModel(stringsCSV); int Coincidences = 0; int NewPrice = 0; foreach (var item in FileProducts) { var product = db.Products.FirstOrDefault(c => c.VendorRef.VendorName == item.VendorName && c.ProductName == item.ProductName); if (product != null) { Coincidences++; if (product.Price != item.Price) { product.Price = item.Price; NewPrice++; } } } try { db.SaveChanges(); sw.Stop(); } catch (Exception) { // Обработать исключения } CompareResult result = new CompareResult { Coincidences = Coincidences, NewPrice = NewPrice, Time = sw.Elapsed.ToString() }; return(Json(result)); }