.NET Compact Framework中带有POST参数的异步WebRequest

Question

我正在尝试在.NET Compact Framework上执行异步HTTP(S)POST,但我似乎无法使其正常工作.

这是我正在做的事情:

private void sendRequest(string url, string method, string postdata) {
    WebRequest rqst = HttpWebRequest.Create(url);
    CredentialCache creds = new CredentialCache();
    creds.Add(new Uri(url), "Basic", new NetworkCredential(this.Uname, this.Pwd));
    rqst.Credentials = creds;
    rqst.Method = method;
    if (!String.IsNullOrEmpty(postdata)) {
        rqst.ContentType = "application/xml";
        byte[] byteData = UTF8Encoding.UTF8.GetBytes(postdata);
        rqst.ContentLength = byteData.Length;
        using (Stream postStream = rqst.GetRequestStream()) {
            postStream.Write(byteData, 0, byteData.Length);
            postStream.Close();
        }
    }
    ((HttpWebRequest)rqst).KeepAlive = false;
    rqst.BeginGetResponse(DataLoadedCB, rqst);
}

private void DataLoadedCB(IAsyncResult result) {
    WebRequest rqst = ((WebRequest)(((BCRqst)result.AsyncState).rqst));
    WebResponse rsps = rqst.EndGetResponse(result);

    /* ETC...*/
}

...但由于某种原因,我在DataLoadedCB的第二行得到一个WebException:

"此请求需要缓冲数据以进行身份​​验证或重定向才能成功."

当我做一个简单的HTTP GET时,完全相同的代码完美地工作,但是当我抛出一些POST参数时,一切都失败了.

有任何想法吗？

Answer 1

我很开心!我找到了问题的答案!!!

这条小线就行了:

((HttpWebRequest)rqst).AllowWriteStreamBuffering = true;