private void lvMenu_DoubleClick(object sender, EventArgs e)
        {
            if (txtAdet.Text == "")
            {
                txtAdet.Text = "1";
            }
            if (lvMenu.Items.Count > 0)
            {
                sayac = lvSiparisler.Items.Count;
                lvSiparisler.Items.Add(lvMenu.SelectedItems[0].Text);
                lvSiparisler.Items[sayac].SubItems.Add(txtAdet.Text);
                lvSiparisler.Items[sayac].SubItems.Add(lvMenu.SelectedItems[0].SubItems[2].Text);
                lvSiparisler.Items[sayac].SubItems.Add((Convert.ToDecimal(lvMenu.SelectedItems[0].SubItems[1].Text) * Convert.ToDecimal(txtAdet.Text)).ToString());

                lvSiparisler.Items[sayac].SubItems.Add("0");
                sayac2 = lvYeniEklenenler.Items.Count;
                lvSiparisler.Items[sayac].SubItems.Add(sayac2.ToString());

                lvYeniEklenenler.Items.Add(AdditionId.ToString());
                lvYeniEklenenler.Items[sayac2].SubItems.Add(lvMenu.SelectedItems[0].SubItems[2].Text);
                lvYeniEklenenler.Items[sayac2].SubItems.Add(txtAdet.Text);
                lvYeniEklenenler.Items[sayac2].SubItems.Add(tableId.ToString());
                lvYeniEklenenler.Items[sayac2].SubItems.Add(sayac2.ToString());

                sayac2++;
                txtAdet.Text = "";
            }
        }
        private void btnOdeme_Click(object sender, EventArgs e)
        {
            cGenel._ServisTurNo = 1;
            cGenel._AdisyonId   = AdditionId.ToString();
            frmBill frm = new frmBill();

            this.Close();
            frm.Show();
        }