COMPortTerminal.MainForm.but_Bill_Click C# (CSharp) Method

        private void but_Bill_Click(object sender, EventArgs e)
        {
            //checkout mode
            mode = eMode.eCheckout;

            //clear tea and waiter
            tea_status = eTea.eClear;
            waiter_status = eWaiter.eClear;
            teaWaiterStatusCheck();

            DialogResult result= MessageBox.Show(this,"The system is now in checkout mode. To exist checkout mode, press OK.", "Checkout Mode");
            if (result == DialogResult.OK)
            {
                mode = eMode.eOperational;
            }
        }