public void FindSonNot()
{
OkulDbEntities db = new OkulDbEntities();
SonNot = (Vize * 4 + Final * 6) / 10;
db.OgrenciDers.Add(this);
db.SaveChanges();
Ogrenci ogrenci = db.Ogrenci.Find(this.OgrenciId);
List <OgrenciDers> ogrenciDersler = db.OgrenciDers.Where(x => x.OgrenciId == this.OgrenciId).ToList();
int ort = 0;
foreach (var item in ogrenciDersler)
{
ort += item.SonNot.Value / ogrenciDersler.Count;
}
ogrenci.GenelOrt = ort;
db.Entry(ogrenci).State = EntityState.Modified;
db.SaveChanges();
}
