private void buttonCredit_Click(object sender, EventArgs e) { paymentType = "Credit"; selectPaymentType(); DialogResult dialogResult = MessageDialog.Show("Confirm Payment", "Are you want to make the payment By Credit?? "); if (dialogResult == DialogResult.Yes) { this.invoice_form.paymentCompleted(); InvoiceModel invoice = new InvoiceModel(); var response = invoice.update_attributeForSingleRow(invoice, "is_credit", "1", this.invoice.id); if (response != null) { DialogResult result = MessageDialog.Show("Your Payment Complete!", "Do you want to close payment form?"); if (result == DialogResult.Yes) { this.Close(); } } else { MessageDialog.ShowAlert("Payment Error!", "Unable to create payment, Please contact with admin!"); } } }