public async Task <IActionResult> COVID(InsuranceCOVID covid)
        {
            db.COVID.Add(covid);
            await db.SaveChangesAsync();

            return(RedirectToAction("Index"));
        }
        public async Task <IActionResult> RemoveCOVID(int?id)
        {
            if (id != null)
            {
                InsuranceCOVID COVID = await db.COVID.FirstOrDefaultAsync(p => p.Id == id);

                if (COVID != null)
                {
                    db.COVID.Remove(COVID);
                    await db.SaveChangesAsync();

                    return(RedirectToAction("Index"));
                }
            }
            return(NotFound());
        }
        public async Task <IActionResult> COVID(InsuranceCOVID covid)
        {
            if (ModelState.IsValid)
            {
                InsuranceCOVID COVID = await db.COVID.FirstOrDefaultAsync(u => u.NSF == covid.NSF);

                if (COVID == null)
                {
                    db.COVID.Add(covid);
                    await db.SaveChangesAsync();
                }
            }


            return(RedirectToAction("Index"));
        }