//DELETE file from Amazon server
        public bool DeleteFile(int id)
        {
            bool retVal = false;

            UserFile            fileInfo = FileMetaService.FileGetById(id);
            AmazonDeleteRequest payload  = new AmazonDeleteRequest();

            payload.Id      = fileInfo.ID;
            payload.FileUrl = fileInfo.FileUrl;

            retVal = _uploadService.DeleteFileFromS3(payload);

            if (retVal)
            {
                fms.FileDelete(payload.Id);
            }
            ;
            return(retVal);
        }