使用AsyncEnumerator

Question

我一直在使用AsyncEnumerator類來幫助清理我的異步代碼。 問題是屈服返回永遠不會觸發后的代碼。 用戶界面調用一個對象，該對象在單擊按鈕時將調用HttpWorker對象。 無論單擊多少按鈕，代碼都不會超過收益率。

    public void ReadFromUrl(string Url)
    {
        AsyncEnumerator asyncEnum = new AsyncEnumerator();
        asyncEnum.BeginExecute(GetData(asyncEnum,Url), asyncEnum.EndExecute);
    }

    private IEnumerator<Int32> GetData(AsyncEnumerator AsyncEnum, String Url)
    {
        url = Url;
        request = (HttpWebRequest)WebRequest.Create(url);

        request.CookieContainer = new CookieContainer();
        request.AllowAutoRedirect = true;
        request.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.6) Gecko/20060728 Firefox/1.5.0.6";

        request.BeginGetResponse(AsyncEnum.End(), null);
        AsyncEnum.SyncContext = null;
        yield return 1;

        response = (HttpWebResponse)request.EndGetResponse(AsyncEnum.DequeueAsyncResult());


        if (response.StatusCode == HttpStatusCode.OK)
        {
            // Create the stream, encoder and reader.
            Stream responseStream = response.GetResponseStream();
            Encoding streamEncoder = Encoding.UTF8;
            StreamReader responseReader = new StreamReader(responseStream, streamEncoder);
            responseAsString = responseReader.ReadToEnd();
        }
        else
        {
            throw new Exception(String.Format("Response Not Valid {0}", response.StatusCode));
        }

    }

Answer 1

除了我的調試使用，沒有其他問題！