public IActionResult Post3(string id)
 {
     try{
         LoaiGiangVien del = _db.LoaiGiangVien.FirstOrDefault(x => x.MaLoaiGiangVien == id);
         del.TrangThai = false;
         _db.SaveChanges();
         return(Ok("Xoa thanh cong"));
     }
     catch {
         return(BadRequest());
     }
 }
 public IActionResult Getcv(string id)
 {
     try
     {
         LoaiGiangVien model = _db.LoaiGiangVien.Find(id);
         return(Ok(model));
     }
     catch (Exception)
     {
         return(BadRequest());
     }
 }
 public IActionResult Post2([FromBody] LoaiGiangVien cb, string id)
 {
     try{
         LoaiGiangVien edit = _db.LoaiGiangVien.FirstOrDefault(x => x.MaLoaiGiangVien == id);
         edit.TenLoaiGiangVien = cb.TenLoaiGiangVien;
         edit.BaoHiem          = cb.BaoHiem;
         _db.SaveChanges();
         return(Ok("Them thanh cong"));
     }
     catch {
         return(BadRequest());
     }
 }
 public IActionResult Post([FromBody] LoaiGiangVien cb)
 {
     cb.TrangThai = true;
     try
     {
         LoaiGiangVien tour = new LoaiGiangVien()
         {
             MaLoaiGiangVien  = cb.MaLoaiGiangVien,
             TenLoaiGiangVien = cb.TenLoaiGiangVien,
             BaoHiem          = cb.BaoHiem,
             TrangThai        = cb.TrangThai
         };
         _db.LoaiGiangVien.Add(tour);
         _db.SaveChanges();
         return(Ok("Them thanh cong"));
     }
     catch (Exception)
     {
         return(BadRequest());
     }
 }