System.Web.Mvc.T4Extensions.TimestampString C# (CSharp) Method

        public static string TimestampString(string virtualPath) {
            if (!HostingEnvironment.IsHosted) return string.Empty;
            string filePath = HostingEnvironment.MapPath(virtualPath);
            return Convert.ToString((System.IO.File.GetLastWriteTimeUtc(filePath).Ticks-CenturyBegin.Ticks)/1000000000,16);            
        }
    }