Download file

I'm currently having some problems using the DownloadContent method from the ContentService. Could anyone give me a small example of the best way to use the received stream in order to create a file?

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sgrasley

Hi, Andre.

What sort of problems are you having? Are you getting the stream from DownloadContent and just having trouble writing it to a file? Can you post an excerpt of your code?

Thanks,

Scott

sgrasley

Also, are you using C#?

Thanks,

Scott

sgrasley

// Fetch the version contents as a stream

String contextID = fDocManService.GetVersionContentsContext( fDocsAuthentication, currNode.ID, 0 );
Stream stream = fContentService.DownloadContent( fContentAuthentication, contextID );

// Write the stream to the file on disk.
FileStream fileStream = File.OpenWrite( saveFileDialog.FileName );

byte[] buf = new byte[1024];
int numBytes = 0;

while ( ( numBytes = stream.Read( buf, 0, buf.Length ) ) > 0 )
{
fileStream.Write( buf, 0, numBytes );
}
fileStream.Close();
stream.Close();

Hope this helps,

Scott

Bax_Ruud

I tried the code mentioned above but it fails on the DownloadContent. It's saying that I have to increase the MaxReceivedMessageSize ? Question is where to set it to considering I can't tell upfront how big the biggest file will be !?

I would expect that using this implementation for large documents would be a little smarter by for instance downloading the document in chunks.

Any suggestions ?!

Jason_Smith

Take a look at these two properties in your configuration:

MaxRecievedMessageSize

http://msdn.microsoft.com/en-us/library/system.servicemodel.basichttpbinding.maxreceivedmessagesize.aspx

TransferMode

http://msdn.microsoft.com/en-us/library/system.servicemodel.basichttpbinding.transfermode.aspx

If you set the transferMode to Streamed it will download a file in chunks up to the maxBufferSize for each chunk.

Also see here:

http://msdn.microsoft.com/en-us/library/ms789010.aspx

Hope that helps.

Jason

Guy_Pomerleau

Also be aware of the encoding. You have to set it on both side: client and server side to match:

Also are you windows authenticated?

+ < binding name =" ContentServiceBinding " maxReceivedMessageSize =" 2147483647 " messageEncoding =" Mtom " transferMode =" Streamed " >

- < security mode =" TransportCredentialOnly " >

< transport clientCredentialType =" Windows " />

</ security >

</ binding >

- <