/// <summary>

        /// Sub-thread entry function

        /// </summary>

        /// <param name="stateinfo"></param>

        public void UploadFile( object stateinfo )

        {

            int nRealRead, nBufferSize;

            const int BUFFER_SIZE = 10240;

            using( FileStream fs = new FileStream( strFileName,

                       FileMode.Open, FileAccess.Read,

                       FileShare.Read ) )

            {

                string sName = strFileName.Substring( strFileName.LastIndexOf( "\\" ) + 1 );

                byte[] bBuffer = new byte[BUFFER_SIZE];//Init 10k buffer

                fs.Position = nStartPos;

                nRealRead = 0;

                do

                {

                    nBufferSize = BUFFER_SIZE;

                    if( nRealRead + BUFFER_SIZE > nTotalBytes )

                        nBufferSize = nTotalBytes - nRealRead;

                    nBufferSize = fs.Read( bBuffer, 0, nBufferSize );

                    if( nBufferSize == BUFFER_SIZE )

                        UploadHandle( sName,

                            nRealRead + nStartPos,

                            bBuffer );

                    else if( nBufferSize > 0 )

                    {

                        //Copy data

                        byte[] bytData = new byte[nBufferSize];

                        Array.Copy( bBuffer,0, bytData, 0, nBufferSize );

                        UploadHandle( sName,

                            nRealRead + nStartPos,

                            bytData );

                    }

                    nRealRead += nBufferSize;

                }

                while( nRealRead < nTotalBytes );

            }

            //Release signal

            ManualResetEvent mr = stateinfo as ManualResetEvent;

            if( mr != null )

                mr.Set();

        }

    }

}