public ActionResult AddCpu()
        {
            var cp  = new CpuRepo(new CpuMssql());
            var cvm = new CpuViewModel((Computer)Session["CurrentBuild"], cp.GetAll());

            return(View(cvm));
        }
        // GET: Part
        public ActionResult Cpu(int computerId)
        {
            var cr  = new ComputerRepo(new ComputerMssql());
            var cp  = new CpuRepo(new CpuMssql());
            var cvm = new CpuViewModel(cr.GetById(computerId), cp.GetAll());

            return(View(cvm));
        }