public ActionResult CreatePost(SoftwareAppliance softwareappliance, int?[] MachinesList)
        {
            if (ModelState.IsValid)
            {
                db.SoftwareAppliances.Add(softwareappliance);
                db.SaveChanges();

                if (MachinesList != null)
                {
                    softwareappliance.Machines = new List<Machine>();
                    foreach (var machine in MachinesList)
                        softwareappliance.Machines.Add(db.Machines.Find(machine));
                    db.SaveChanges();
                }

                return RedirectToAction("Dashboard", "Home");
            }

            return View("~/Views/Home/Dashboard.cshtml", softwareappliance);
        }
        public ActionResult EditPost(SoftwareAppliance softwareappliance, int?[] MachinesList)
        {
            if (ModelState.IsValid)
            {
                db.Entry(softwareappliance).State = EntityState.Modified;
                db.SaveChanges();

                //Machines List
                SoftwareAppliance softwareapplianceFromDB = db.SoftwareAppliances.Include(x => x.Machines).Where(x => x.SoftwareApplianceId == softwareappliance.SoftwareApplianceId).First();

                if (softwareapplianceFromDB.Machines == null)
                    softwareapplianceFromDB.Machines = new List<Machine>();
                else
                {
                    foreach (Machine m in db.Machines.ToList())
                        softwareapplianceFromDB.Machines.Remove(m);
                    db.SaveChanges();
                }

                if (MachinesList != null)
                {
                    foreach (int machineID in MachinesList)
                    {
                        var machine = db.Machines.Find(machineID);
                        softwareapplianceFromDB.Machines.Add(machine);
                    }
                    db.SaveChanges();
                }

                return RedirectToAction("Dashboard", "Home");
            }
            return View("~/Views/Home/Dashboard.cshtml", softwareappliance);
        }