protected void Button1_Click(object sender, EventArgs e)
{
EntityOgrenci ent = new EntityOgrenci();
ent.Ad = TxtAd.Text;
ent.Soyad = TxtSoyad.Text;
ent.Numara = TxtNumara.Text;
ent.Fotograf = TxtFoto.Text;
ent.Sifre = TxtSifre.Text;
BLLOgrenci.OgrenciEkleBll(ent);
}