private void btn_SiparisKopyala_Click(object sender, EventArgs e)
        {
            frm_SiparisAra frm = new frm_SiparisAra(frm_SiparisAra.op.kopyala);

            frm.ShowDialog();
        }
        private void btn_SiparisDegistir_Click(object sender, EventArgs e)
        {
            frm_SiparisAra frm = new frm_SiparisAra(frm_SiparisAra.op.degistir);

            frm.ShowDialog();
        }