c# - Upload xml file on ftp binary -

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i have code, send xml file ftp server, size of file on ftp server smaller original file. i'm trying enable binary transmission, result still same.

fileinfo f = new fileinfo("c:\\users\\l\\desktop\\data.xml");             long original_vel = f.length;              ftpwebrequest request = (ftpwebrequest)webrequest.create("ftp://***");             request.usebinary = true;             request.method = webrequestmethods.ftp.getfilesize;             request.method = webrequestmethods.ftp.uploadfile;             request.credentials = new networkcredential("*****", "*****");              streamreader sourcestream = new streamreader(@"c:\\users\\l\\desktop\\data.xml");             byte[] filecontents = encoding.unicode.getbytes(sourcestream.readtoend());             sourcestream.close();             request.contentlength = filecontents.length;             long ftp_vel = request.contentlength;                   stream requeststream = request.getrequeststream();             requeststream.write(filecontents, 0, filecontents.length);             requeststream.close();             ftpwebresponse response = (ftpwebresponse)request.getresponse();             if (original_vel == ftp_vel)             {                 response.close();                }             else             {                                 odesilani();             }

the size of original file 294 672, file on ftp have 294 670. the xml file on ftp valid....but when compare files in total comander, original file have: ff fe 3c 00 3f 00.....and file on ftp have 3c 00 3f 00...but content of file ok...:/ have idea?

is xml file @ server valid? code, reading file using unicode. files encoded using unicode have character placed @ beginning of file called byte order mark . may reason have 2-byte difference lost during conversion.

update proper byte order mark encoding given encoding.getpreamble() fix code above be.. 

        streamreader sourcestream = new streamreader(@"c:\\users\\l\\desktop\\data.xml");          //get preamble , file contents         byte[] bom = encoding.unicode.getpreamble();         byte[] content = encoding.unicode.getbytes(sourcestream.readtoend());          //create destination array         byte[] filecontents = new byte[bom.length + content.length];          //copy arrays destination appending bom if available         array.copy(bom, 0, filecontents, 0, bom.length);         array.copy(content, 0, filecontents, bom.length, content.length);           request.contentlength = filecontents.length;         long ftp_vel = request.contentlength;         stream requeststream = request.getrequeststream();         requeststream.write(filecontents, 0, filecontents.length);         requeststream.close();         ftpwebresponse response = (ftpwebresponse)request.getresponse();         if (original_vel == ftp_vel)         {             response.close();         }         else         {             odesilani();         }


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