public ActionResult Create(ProjectDetail projectdetail)
        {
            ModelState.Clear();
            if (ModelState.IsValid)
            {
                db.ProjectDetails.Add(projectdetail);
                db.SaveChanges();
                return RedirectToAction("Index");
            }

            return View(projectdetail);
        }
 public ActionResult Edit(ProjectDetail projectdetail)
 {
     if (ModelState.IsValid)
     {
         db.Entry(projectdetail).State = EntityState.Modified;
         db.SaveChanges();
         return RedirectToAction("Index");
     }
     return View(projectdetail);
 }