public ActionResult SaveBuild(string CPUGuid, string GPUGuid) { BuildEntityDTO build = new BuildEntityDTO(); Guid.TryParse(CPUGuid, out Guid CPUID); Guid.TryParse(GPUGuid, out Guid GPUID); build.CPUID = CPUID; build.GPUID = GPUID; //doubtful build.UserID = User != null?User.Identity.GetUserId() : null; Service.SaveBuild(build); return(RedirectToAction("Builds", "Build")); }