public async Task<ActionResult> Index()
    {
        try
        {
            var connString = RoleEnvironment.IsEmulated
                                 ? ConfigurationManager.ConnectionStrings["Poc"].ConnectionString
                                 : ConfigurationManager.ConnectionStrings["PocVm"].ConnectionString;

            var repository = new AccountRepository(connString);
            var stopWatch = new Stopwatch();
            stopWatch.Start();

            var accounts = await repository.GetAll();

            stopWatch.Stop();
            ViewBag.Accounts = accounts;
            ViewBag.VmStatus = stopWatch.ElapsedMilliseconds;
        }
        catch (Exception e)
        {
            blah blah blah...
        }


        return View();
    }

这看起来是正确的还是我错过了一些非常明显的东西？