public ActionResult Create(Material material)
        {
            //Check if model is valid, then add Materials to table and save changes to Database
            if (ModelState.IsValid)
            {
                db.Materials.Add(material);
                db.SaveChanges();
                return RedirectToAction("Index");
            }

            return View(material);
        }
 public ActionResult Edit(Material material)
 {
     //Check if model is valid, then edit Materials to table and save changes to Database
     if (ModelState.IsValid)
     {
         db.Entry(material).State = EntityState.Modified;
         db.SaveChanges();
         return RedirectToAction("Index");
     }
     return View(material);
 }