OnWriteToStreamAsync or WriteToStreamAsync? RSS

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  wyx2000

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  OnWriteToStreamAsync or WriteToStreamAsync?

  Feb 21, 2013 08:32 PM|LINK

  Implemented a MediaTypeFormatter, but no response on call, it does execute the following method, any idea? 

  public override Task WriteToStreamAsync(Type type, object value, Stream writeStream, HttpContent content, TransportContext transportContext)

  {

  return Task.Factory.StartNew(() =>
  {
  using (StreamWriter streamWriter = new StreamWriter(writeStream, new UTF8Encoding(false, true)))
  {
  streamWriter.Write("<error>?</error>");
  }
  });
  }

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  Kiran Challa

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  Re: OnWriteToStreamAsync or WriteToStreamAsync?

  Feb 22, 2013 04:57 PM|LINK

  Is this method being at all?...if it is and if you are seeing any response, i believe its probably because you are closing the writeStream...do no close the stream as the underlying layer would that for you...

  Thanks,
  Kiran Challa
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  wyx2000

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  Re: OnWriteToStreamAsync or WriteToStreamAsync?

  Feb 22, 2013 06:15 PM|LINK

  I don't quite get what you are saying. All my code is there, you can tell I don't close the stream.

  After upgrade to .NET.Formatting 4.1.0.0, all those write out don't work now.

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  Kiran Challa

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  Microsoft

  Re: OnWriteToStreamAsync or WriteToStreamAsync?

  Feb 22, 2013 06:30 PM|LINK

  wyx2000

  All my code is there, you can tell I don't close the stream.

  i mean the 'using' statement will case the underlying stream to be closed.

  using (StreamWriter streamWriter = new StreamWriter(writeStream, new UTF8Encoding(false, true)))
  {
  streamWriter.Write("<error>?</error>");
  }

  Thanks,
  Kiran Challa
  • Marked as answer by wyx2000 on Feb 22, 2013 08:02 PM
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  wyx2000

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  Re: OnWriteToStreamAsync or WriteToStreamAsync?

  Feb 22, 2013 08:02 PM|LINK

  Ah, I see, that can explain the problem well.

  So that is a break change I think.

  Thanks