private void cbIlce_SelectedIndexChanged(object sender, EventArgs e)
        {
            cAdres a = (cAdres)cbIlce.SelectedItem;

            txtIlceID.Text = Convert.ToString(a.IlceID);
            a.mahalleGetir(cbMahalle, Convert.ToInt32(txtIlceID));
        }
        private void cbIlce_SelectedIndexChanged(object sender, EventArgs e)
        {
            cAdres a = (cAdres)cbIlce.SelectedItem;

            tutIlceID = a.IlceID;
            a.mahalleGetir(cbMahalle, tutIlceID);
        }