public ActionResult Subscribe(FormCollection form) { var alreadySubscribed = false; using (var context = new ContentStorage()) { var subscriber = new Customers {Guid = Guid.NewGuid().ToString()}; TryUpdateModel(subscriber, new[] { "Name", "Email", "SubscribeType" }); var email = form["Email"]; byte subscrType = Convert.ToByte(form["SubscribeType"]); var existedEmail = context.Customers.FirstOrDefault(c => c.Email == email && c.SubscribeType == subscrType); if (existedEmail == null) { context.AddToCustomers(subscriber); context.SaveChanges(); } else { alreadySubscribed = true; } } if (!string.IsNullOrEmpty(form["redirectUrl"]) && form["redirectUrl"] == "sbscrList") return RedirectToAction("Subscribers", "Subscribe"); return RedirectToAction(alreadySubscribed ? "AlreadySubscribed" : "ThankYou"); }