public ActionResult AddChiTiet(CHITIETPHIEUKHAM ctPK)
 {
     try
     {
         database.CHITIETPHIEUKHAMs.Add(ctPK);
         database.SaveChanges();
         return(RedirectToAction("MedicalExaminationList"));
     }
     catch
     {
         return(Content("Error Create New"));
     }
 }
 public ActionResult DeleteChiTiet(int id, CHITIETPHIEUKHAM ctPK)
 {
     try
     {
         ctPK = database.CHITIETPHIEUKHAMs.Where(s => s.MaChiTietPhieuKham == id).FirstOrDefault();
         database.CHITIETPHIEUKHAMs.Remove(ctPK);
         database.SaveChanges();
         return(RedirectToAction("MedicalExaminationList")); //mới add à chưa commit
     }
     catch
     {
         return(Content(" this data is using in other table , error Delete"));
     }
 }
 public ActionResult EditChiTiet(CHITIETPHIEUKHAM ctPK)
 {
     database.Entry(ctPK).State = System.Data.Entity.EntityState.Modified;
     database.SaveChanges();
     return(RedirectToAction("MedicalExaminationList"));
 }