async and await not working in asp.net MVC

Question

    public async Task<JsonResult> Save(List<SalesNewItemModel> aSalesNewItemModel)
    {
        string msg =  await _aSalesNewItemManager.Save(aSalesNewItemModel);
        return Json(msg, JsonRequestBehavior.AllowGet);
    }

Shows Error type string is not awaitable

You can not apply async await to every thing. Return type of _aSalesNewItemManager.Save(aSalesNewItemModel) must be a task. — Khalil, Oct 24 '17 at 05:43
I need this method to provide any help _aSalesNewItemManager.Save(aSalesNewItemModel) — Khalil, Oct 24 '17 at 05:52
[async await docs](https://learn.microsoft.com/en-us/dotnet/csharp/async) ..[Relevant Stack question](https://stackoverflow.com/questions/14455293/how-and-when-to-use-async-and-await) — Khalil, Oct 24 '17 at 05:53

score 0 · Accepted Answer · answered Oct 24 '17 at 09:02

Since the method doesn't call anything async, just make it non-async.

public JsonResult Save(List<SalesNewItemModel> aSalesNewItemModel)
{
    string msg = _aSalesNewItemManager.Save(aSalesNewItemModel);
    return Json(msg, JsonRequestBehavior.AllowGet);
}

Or you should change _aSalesNewItemManager.Save to return Task<string> and make use of asynchronous processing in that method. For example async IO.

async and await not working in asp.net MVC

1 Answers1