public IActionResult Index(string id = "DataStruc Lab") { dynamic mymodel = new ExpandoObject(); mymodel.rooms = _roomService.Get(); mymodel.tools = _toolService.GetByRoom(id); // Console.WriteLine(id); // Console.WriteLine(JsonConvert.SerializeObject(mymodel.tools, Formatting.Indented)); if (mymodel.rooms != null) { return(View(mymodel)); } return(View("ไม่มีห้องให้ใช้งาน")); }