public ActionResult Edit(BlogPost blogpost)
 {
     if (ModelState.IsValid)
     {
         context.Entry(blogpost).State = EntityState.Modified;
         context.SaveChanges();
         return RedirectToAction("Index");
     }
     return View(blogpost);
 }
        public ActionResult Create(BlogPost blogpost)
        {
            blogpost.DatePosted = DateTime.Now.ToUniversalTime();
            blogpost.DateLastModified = blogpost.DatePosted;

            if (ModelState.IsValid)
            {
                context.BlogPosts.Add(blogpost);
                context.SaveChanges();
                return RedirectToAction("Index");  
            }

            return View(blogpost);
        }