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如何使用 wp7 BackgroundTransferService 上传图像并获取服务器响应？

 var transferRequest = new BackgroundTransferRequest(new Uri(Global.profileUploadServerUrl, UriKind.Absolute));
            transferRequest.Method = "POST";
            transferRequest.UploadLocation = new Uri(@"/shared\transfers/file.jpg", UriKind.Relative);
            transferRequest.TransferPreferences = TransferPreferences.AllowCellularAndBattery;
            transferRequest.Headers["Content-Type"] = "multipart/form-data";
            transferRequest.TransferStatusChanged += new EventHandler<BackgroundTransferEventArgs>(transferRequest_TransferStatusChanged);
            transferRequest.TransferProgressChanged += new EventHandler<BackgroundTransferEventArgs>(transferRequest_TransferProgressChanged);

            BackgroundTransferService.Add(transferRequest);



static void transferRequest_TransferProgressChanged(object sender, BackgroundTransferEventArgs e)
    {
       // throw new NotImplementedException();
    }

static void transferRequest_TransferStatusChanged(object sender, BackgroundTransferEventArgs e)
{
    BackgroundTransferRequest request = sender as BackgroundTransferRequest;
    if (request.TransferStatus == TransferStatus.Completed)
    {
        BackgroundTransferService.Remove(request);
        if (request.StatusCode == 201)
        {
            MessageBox.Show("Upload completed.");
        }
        else
        {
            MessageBox.Show("An error occured during uploading. Please try again later." + request.StatusCode.ToString() + "/ " + request.TransferError);
        }
    }
}

图像加载似乎通过了，但服务器返回状态 206。以及如何从服务器获得响应？这里看了示例，但我不明白。 在这个例子中，有一行：

  request.DownloadLocation = new Uri (responsePath, UriKind.RelativeOrAbsolute);

那有必要指定吗？如果我这样做，它将指定相同的 url，它会失败。一般来说，卸载图像服务器后的想法应该返回带有图像链接的响应。但他会出来答案 206。如何得到答案？

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1 回答 1

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Excerpt from the BackgroundTransferRequest.StatusCode Property topic on MSDN:

This property contains the HTTP status code returned from the server with which the request was initiated. The status code indicating success is 200 or 206, depending on the server configuration. Note that this code indicates whether the server could successfully complete the request. It does not indicate that the transfer was successful. A successful transfer will have a TransferStatus of Completed and TransferError will be null.

于 2013-05-02T06:46:57.637 回答