private void btnOK_Click(object sender, EventArgs e) { var tempate_str = "{0};{1},{2},{3},{4};{5}"; var str = string.Format(tempate_str, cmbPorts.Text.Substring(3), cmbBaud.Text, cmbCheck.SelectedIndex, cmbDataBit.Text, cmbStopBit.SelectedIndex, nudAdd.Value); AccessDBHelper.UpdateModel(model); this.DialogResult = DialogResult.OK; }