public async Task <ActionResult> Create([Bind(Include = "MaBaiViet,NoiDung,AnhChuDe,MaPhanLoai,NgayDang,LuotXem,MaNguoiDung,MaBinhLuan,MaDanhMuc,TenBaiViet,MaDinhDuong,MaTinTuc,MaKienThuc,TenChuDe,TieuDe,HuongDan")] BaiViet baiViet, HttpPostedFileBase fileUpload)
        {
            var fileimg = Path.GetFileName(fileUpload.FileName);
            //Lưu file
            var pa = Path.Combine(Server.MapPath("~/Content/Img/"), fileimg);

            if (fileUpload == null)
            {
                ViewBag.ThongBao = "Chọn hình ảnh";
                return(View());
            }
            else if (System.IO.File.Exists(pa))
            {
                ViewBag.ThongBao = "Hình ảnh đã tồn tại!";
            }
            else
            {
                fileUpload.SaveAs(pa);
            }
            baiViet.AnhChuDe = fileUpload.FileName;
            db.BaiViets.Add(baiViet);
            await db.SaveChangesAsync();


            ViewBag.MaDanhMuc   = new SelectList(db.DanhMucs, "MaDanhMuc", "TenDanhMuc", baiViet.MaDanhMuc);
            ViewBag.MaDinhDuong = new SelectList(db.DinhDuongs, "Ma_DinhDuong", "TieuDe", baiViet.MaDinhDuong);
            ViewBag.MaKienThuc  = new SelectList(db.KTs, "MaKienThuc", "TenKienThuc", baiViet.MaKienThuc);
            ViewBag.MaNguoiDung = new SelectList(db.NguoiDungs, "MaNguoiDung", "TenNguoiDung", baiViet.MaNguoiDung);
            ViewBag.MaPhanLoai  = new SelectList(db.PhanLoais, "MaPhanLoai", "TenPhanLoai", baiViet.MaPhanLoai);
            ViewBag.MaTinTuc    = new SelectList(db.TinTucs, "MaTinTuc", "TieuDe", baiViet.MaTinTuc);
            return(View(baiViet));
        }
        public async Task <ActionResult> DangKy([Bind(Include = "MaNguoiDung,TenNguoiDung,MatKhau,Gmail,NhapLaiMatKhau,NgaySinh,GioiTinh,DienThoaiND")] NguoiDung nguoiDung)
        {
            if (ModelState.IsValid)
            {
                db.NguoiDungs.Add(nguoiDung);
                await db.SaveChangesAsync();

                return(RedirectToAction("Index", "HienThi"));
            }

            return(View(nguoiDung));
        }