Question

How can I add this function to my C# code?:

Validate that if the user clicks the “OK” button, a “Seating Category” is selected, and at least one ticket is being purchased. If not, pop-up a dialog box asking the user to enter the needed data for the transaction. What we want to avoid is depicted in See Figure 3.

Figure 3:

K-State Athletic Depart X Seating Category O Student O Alumni O Military O Faculty or Statt O General Put You ordered o ticket() for a total cost of o Number of T OK X Parking Pass | OK Figure 3. Avoid this output

This code asks for a seating category to be selected, how many tickets to be purchased, and if a parking pass is needed. Thank you!!

Form1.cs File:

using System;

using System.Windows.Forms;

namespace Proj4

{

    public partial class Form1 : Form

    {

        // Declare constants for proces

        const int COST_STUDENT_PERCENTAGE = 50;

        const int COST_ALUMNI_PERCENTAGE = 10;

        const int COST_MILITARY_PERCENTAGE = 20;

        const int COST_FACULTY_STAFF_PERCENTAGE = 15;

        const int COST_GENERAL = 80;

        const int COST_PARKING = 25;

        public Form1()

        {

            InitializeComponent();

        }

        private void btOK_Click(object sender, EventArgs e)

        {

            double cost = COST_GENERAL, total = 0.0;

            // Determine cost based on the radio button selection

            if (rbStudent.Checked)

            {

                cost -= cost * COST_STUDENT_PERCENTAGE / 100;

            }

            else if(rbAlumni.Checked)

            {

                cost -= cost * COST_ALUMNI_PERCENTAGE / 100;

            }

            else if(rbMilitary.Checked)

            {

                cost = cost * COST_MILITARY_PERCENTAGE / 100;

            }

            else if(rbFaculty.Checked)

            {

                cost -= cost * COST_FACULTY_STAFF_PERCENTAGE / 100;

            }

            else if(rbGeneral.Checked)

            {

                cost = COST_GENERAL;

            }

            else

            {

                MessageBox.Show("Select seating category");

                return;

            }

            // calculating the total cost

            int numTicktes = (int)nudTickets.Value;

            total = cost * numTicktes;

            //if parking was added

            if (cbParking.Checked)

            {

                total += COST_PARKING;

                MessageBox.Show("You ordered " + numTicktes + " tickets(s) with parking for a total cost of " + total.ToString("C"));

            }

            else

            {

                MessageBox.Show("You ordered " + numTicktes + " tickets(s) for a total cost of " + total.ToString("C"));

            }

        }

    }

}

Answer 1

Application name :Proj4

Language used :C#

IDE used :Visual Studio 2019

User interface :Form1.cs[Design]

K-State Athletic Department X Seating Category Student Alumni Military O Faculty or Staff General Public Number of Tickets Parking Pass OK

******************************************

Form1.cs :

//namespace
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
//application namespace
namespace Proj4
{
public partial class Form1 : Form
{
// Declare constants for proces
const int COST_STUDENT_PERCENTAGE = 50;
const int COST_ALUMNI_PERCENTAGE = 10;
const int COST_MILITARY_PERCENTAGE = 20;
const int COST_FACULTY_STAFF_PERCENTAGE = 15;
const int COST_GENERAL = 80;
const int COST_PARKING = 25;
public Form1()
{
InitializeComponent();
}

//This is click event for OK Button
private void btOK_Click(object sender, EventArgs e)
{
//checking if radio buttons that is seating capacity is selected
//and number of tickets are greater than 0
if ((rbStudent.Checked || rbAlumni.Checked || rbFaculty.Checked || rbGeneral.Checked || rbMilitary.Checked) && (int)(nudTickets.Value) > 0)
{
double cost = COST_GENERAL, total = 0.0;
// Determine cost based on the radio button selection
if (rbStudent.Checked)
{
cost -= cost * COST_STUDENT_PERCENTAGE / 100;
}
else if (rbAlumni.Checked)
{
cost -= cost * COST_ALUMNI_PERCENTAGE / 100;
}
else if (rbMilitary.Checked)
{
cost = cost * COST_MILITARY_PERCENTAGE / 100;
}
else if (rbFaculty.Checked)
{
cost -= cost * COST_FACULTY_STAFF_PERCENTAGE / 100;
}
else if (rbGeneral.Checked)
{
cost = COST_GENERAL;
}
else
{
MessageBox.Show("Select seating category");
return;
}
// calculating the total cost
int numTicktes = (int)nudTickets.Value;
total = cost * numTicktes;
//if parking was added
if (cbParking.Checked)
{
total += COST_PARKING;
MessageBox.Show("You ordered " + numTicktes + " tickets(s) with parking for a total cost of " + total.ToString("C"));
}
else
{
MessageBox.Show("You ordered " + numTicktes + " tickets(s) for a total cost of " + total.ToString("C"));
}
}
else
{
//When seating capacity is not selected or number of tickets are less than 0
MessageBox.Show("Select seating capacity or number of Ticket greater than 0");
}
}
}
}
===================================

Screen when either parking tickets are less than 0 or seating capacity is not selected :

K-State Athletic Department Seating Category Student Alumni Military Faculty or Staff General Public Number of Tickets Parking Pass OK X Select seating capacity or number of Ticket greater than 0 OK

Screen showing cost :

K-State Athletic Department X Seating Category Student Alumni Military X Faculty or Staff General Public You ordered 2 tickets(s) for a total cost of $136.00 Number of Ticke OK 2 Parking Pass OK