antoantonyk

 string logFile = "log-" + DateTime.Now.ToString("yyyyMMdd") + ".txt";
            string filePath = WebConfigurationManager.AppSettings["LogPath"].ToString();
            //example   --- c:/website/Logs/
            if (!string.IsNullOrEmpty(filePath))
            {
                FileInfo fileInfo = new FileInfo(filePath);

                if (!fileInfo.Exists)
                    Directory.CreateDirectory(filePath);