public FileResult DownloadFile(int FileId, int PubId)
        {
            Publication p1 = new Publication();
            File        f1 = p1.GetFile(FileId, Int32.Parse(Session["EmpId"].ToString()), PubId);

            return(File(f1.Content, System.Web.MimeMapping.GetMimeMapping(f1.FileName), f1.FileName));
        }
        public FileResult DownloadPub(int FileId, int PubId)
        {
            Publication p1 = new Publication();
            File        f1 = p1.GetFile(FileId, PubId);

            return(File(f1.Content, System.Web.MimeMapping.GetMimeMapping(f1.FileName), f1.FileName));
        }