Upload a file using ASP.Net file upload control and WCF

protected bool Upload(HttpPostedFile file, long actualFileSize)
        {
            int filePosition = 0;
            int filePart = 16 * 1024; //Each hit 16 kb file to avoid any serialization issue when transfering  data across WCF

            //Create buffer size to send to service based on filepart size
            byte[] bufferData = new byte[filePart];

            //Set the posted file data to file stream.
            Stream fileStream = file.InputStream;

            //Create the service client
            FUWcfService.FileUploadServiceClient serviceClient = new FUWcfService.FileUploadServiceClient();

            try
            {
                long actualFileSizeToUpload = actualFileSize;
                //Start reading the file from the specified position.
                fileStream.Position = filePosition;
                int fileBytesRead = 0;

                //Upload file data in parts until filePosition reaches the actual file end or size.
                while (filePosition != actualFileSizeToUpload)
                {
                    // read the next file part i.e. another 100 kb of data 
                    fileBytesRead = fileStream.Read(bufferData, 0, filePart);
                    if (fileBytesRead != bufferData.Length)
                    {
                        filePart = fileBytesRead;
                        byte[] bufferedDataToWrite = new byte[fileBytesRead];
                        //Copy the buffered data into bufferedDataToWrite
                        Array.Copy(bufferData, bufferedDataToWrite, fileBytesRead);
                        bufferData = bufferedDataToWrite;
                    }

                    //Populate the data contract to send it to the service method
                    bool fileDataWritten = serviceClient.UploadFileData(
                        new FUWcfService.FileData { FileName = file.FileName, BufferData = bufferData, FilePosition = filePosition });
                    if (!fileDataWritten)
                    {
                        break;
                    }

                    //Update the filePosition position to continue reading data from that position back to server
                    filePosition += fileBytesRead;
                }
            }
            catch (FaultException fex)
            {
                //Log data to database or file system here
                return false;
            }
            finally
            {
                //Close the fileStream once all done.
                fileStream.Close();
            }
            return true;
        }