C# WCF Sending a file through streams

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Hi All,

I need to send a file using a stream using WCF services. I got an error when trying to get the length of the stream.
At the service when I pass the stream I found that the stream properties like stream length,etc are not allowing.

I got following message "Specified method is not supported, SystemNotSupportedException". The stream I passed to the service is a FileStream casted to row Stream since I need to read a file and WCF only accepts row Streams.

Can someone find a solution for this?

Thanks.

Posted 12-Aug-10 22:19pm

thanushkag

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Samuel Cherinet · Answer 1 · 2010-08-13T03:06:00

what I would do is read the content of the file in to an array and send that to the client. in that case you would need to include the file type probably, better yet you can create a wrapper for it

C#

[Serializable]
       class Filewrapper
       {
           public byte[] FileContent { get; private set; }
           public string FileName { get; private set; }
           public Filewrapper()
           { }
           /// <summary>
           ///
           /// </summary>
           /// <param name="content"></param>
           /// <param name="name">only the file name not the full path</param>
           public Filewrapper(byte[] content, string name)
           {
               FileContent = content;
               FileName = name;
           }
       }

then your service would return something like this

string strpath="file path";
Filewrapper fl = new Filewrapper(File.ReadAllBytes(strpath),Path.GetFileName(strpath));

hope this helps