public static void Exists ( [Required] string fileStorageName, [Required] string fileIdenticationGuid ) { try { var startDateTime = DateTime.Now; var fileIdentification = new Guid(fileIdenticationGuid); bool exists = FileStorageFacade.Exists(fileStorageName, fileIdentification); if (exists) { Console.WriteLine(string.Format("True")); } else { Console.WriteLine(string.Format("False")); } var timeSpan = DateTime.Now - startDateTime; Console.WriteLine(string.Format("This operation took {0} msecs", (Int64)timeSpan.TotalMilliseconds)); } catch (Exception e) { Console.WriteLine(string.Format("An error occured; {0}", e.Message)); } }