public async Task <ActionResult> DeleteConfirmed(int id)
        {
            CapDeTai capDeTai = await db.CapDeTais.FindAsync(id);

            db.CapDeTais.Remove(capDeTai);
            await db.SaveChangesAsync();

            return(RedirectToAction("Index"));
        }
        public async Task <ActionResult> Edit([Bind(Include = "MaCapDeTai,TenCapDeTai")] CapDeTai capDeTai)
        {
            if (ModelState.IsValid)
            {
                db.Entry(capDeTai).State = EntityState.Modified;
                await db.SaveChangesAsync();

                return(RedirectToAction("Index"));
            }
            return(View(capDeTai));
        }
        public async Task <ActionResult> Create([Bind(Include = "MaCapDeTai,TenCapDeTai")] CapDeTai capDeTai)
        {
            if (ModelState.IsValid)
            {
                db.CapDeTais.Add(capDeTai);
                await db.SaveChangesAsync();

                return(RedirectToAction("Index"));
            }

            return(View(capDeTai));
        }
        // GET: AdminCapDeTai/Delete/5
        public async Task <ActionResult> Delete(int?id)
        {
            if (id == null)
            {
                return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
            }
            CapDeTai capDeTai = await db.CapDeTais.FindAsync(id);

            if (capDeTai == null)
            {
                return(HttpNotFound());
            }
            return(View(capDeTai));
        }
        public async Task <ActionResult> DeleteConfirmed(int id)
        {
            CapDeTai capDeTai = await db.CapDeTais.FindAsync(id);

            List <DeTai> deTai = await db.DeTais.Where(p => p.MaCapDeTai == capDeTai.MaCapDeTai).ToListAsync();

            foreach (var detai in deTai)
            {
                detai.CapDeTai = null;
                await db.SaveChangesAsync();
            }
            db.CapDeTais.Remove(capDeTai);
            await db.SaveChangesAsync();

            return(RedirectToAction("Index"));
        }