public ActionResult Index(double input, string currency) { //if statement to ensure user has entered all neccessary values if (input != 0 && currency != null) { ViewBag.Input = model.Convert(input, currency); input = ViewBag.Input; SQLiteConnection conn = model.CreateConnection(); model.InsertData(conn, currency, input); return(View("Index")); } else { return(View("Index")); } }