[HttpPost("/catalogs/{catalogId}/records")] // 'Create' a new record public ActionResult Create(int catalogId, string albumName) { Dictionary <string, object> model = new Dictionary <string, object>(); Catalog foundCatalog = Catalog.Find(catalogId); Record newRecord = new Record(albumName); foundCatalog.AddRecord(newRecord); List <Record> catalogRecords = foundCatalog.Records; model.Add("records", catalogRecords); model.Add("catalog", foundCatalog); return(View("Show", model)); }