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"));
        }