如何通过Windows Phone 8.1连接EWS（有问题）？

Question

自从过去3天以来，我一直在尝试从Windows Phone 8.1连接EWS。但是我无法与EWS联系。

我关注此博客.. https://social.msdn.microsoft.com/Forums/en-US/78396950-7549-4f4f-92a6-bdf48c35300d/error-integrating-ews-22-with-windows-phone-81-app?forum=exchangesvrdevelopment

如上所述，如果我们将在Windows Phone 8.1中实现该代码，他们所做的代码，代码给我们例外＆＃34;方法不受支持＆＃34;。

如果我们尝试使用Windows Phone 8.1中的 HttpClient 连接EWS的edmx网址。它会给我们带来未经授权的错误。

我已经检查了连接EWS的iphone和android代码。工作正常。

任何人都能帮助我吗？

Hi Jason,

I tried using HTTPWebRequest, in a sample command line project and it works fine. Below is the code -

public bool Request(string URL, string RequestXML, NetworkCredential UserCredentials)
        {
            HttpWebRequest SoapRequest = (HttpWebRequest)WebRequest.Create(URL);
            StreamWriter RequestWriter=null;
            Stream ResponseStream=null;
            HttpWebResponse SoapResponse=null;
            try
            {
                SoapRequest.AllowAutoRedirect = false;
                SoapRequest.Credentials = UserCredentials;
                SoapRequest.Method = "POST";
                SoapRequest.ContentType = "text/xml";

                RequestWriter = new StreamWriter(SoapRequest.GetRequestStream());
                RequestWriter.Write(RequestXML);
                RequestWriter.Close();
                SoapResponse = (HttpWebResponse)SoapRequest.GetResponse();
                if (SoapResponse.StatusCode == HttpStatusCode.OK)
                {
                    ResponseStream = SoapResponse.GetResponseStream();
                    ResponseEnvelop = XElement.Load(ResponseStream);
                    return true;
                }
                else
                {
                    return false;
                }
            }
            catch(Exception ex)
            {
                ResponseEnvelop = null;
                return false;
                throw ex;
            }
            finally
            {
                SoapRequest = null;
                RequestWriter.Dispose();
                RequestWriter = null;
                ResponseStream.Dispose();
                ResponseStream = null;
                SoapResponse.Dispose();
                SoapResponse = null;
            }
        }
-------------

However some methods are not available in Windows App, so tried below code. There are no compile errors but I receive error "Method not supported". I am trying from weeks but no luck, wondering is some help is available

public async Task<bool> Request(string URL, string RequestXML, NetworkCredential UserCredentials)
        {
            HttpWebRequest SoapRequest = (HttpWebRequest)WebRequest.Create(URL);
            StreamWriter RequestWriter = null;
            Stream ResponseStream = null;
            WebResponse SoapResponse = null;
            try
            {
                SoapRequest.Credentials = UserCredentials;
                SoapRequest.Method = "POST";
                SoapRequest.ContentType = "text/xml";
                RequestWriter = new StreamWriter(await System.Threading.Tasks.Task<Stream>.Run(() => SoapRequest.GetRequestStreamAsync()));
                RequestWriter.AutoFlush = true;
                RequestWriter.Write(RequestXML);
                SoapResponse = await System.Threading.Tasks.Task<Stream>.Run(() => SoapRequest.GetResponseAsync());
                ResponseStream = SoapResponse.GetResponseStream();
                ResponseEnvelop = XElement.Load(ResponseStream);
                return true;
            }

Appreciate some quick help

Thanks,

Nasir