private void btnMusteriBul_Click(object sender, EventArgs e)
        {
            frmMusteriSorgulama frm = new frmMusteriSorgulama();
            frm.ShowDialog();

            txtMusteriNo.Text = cGenel.musteriNo.ToString();
            txtMusteri.Text = cGenel.musteri;
        }
 private void mItemMusteriSorgulama_Click(object sender, EventArgs e)
 {
     frmMusteriSorgulama frm = new frmMusteriSorgulama();
     FormAcikMi(frm);
 }