WinForms Course Registration/Validation Homework

namespace Courses
{
    public class Course
    {
        // Parameterized constructor sets values for all properties
        public Course(string courseNumber, string courseTitle, int credits, int weeks)
        {
            CourseNumber = courseNumber;
            CourseTitle = courseTitle;
            Credits = credits;
            LengthInWeeks = weeks;
            // Initialize IsRegistered to false
            IsRegistered = false;
        }

        // These properties are auto-implemented and read only (init allows setting via constructor).
        public string CourseNumber { get; init; }
        public string CourseTitle { get; init; }
        public int Credits { get; init; }
        public int LengthInWeeks { get; init; }
        // IsRegistered is read-write
        public bool IsRegistered { get; set; }

    }
}

namespace Courses
{
    public class Course
    {
        // Parameterized constructor sets values for all properties
        public Course(string courseNumber, string courseTitle, int credits, int weeks)
        {
            CourseNumber = courseNumber;
            CourseTitle = courseTitle;
            Credits = credits;
            LengthInWeeks = weeks;
            // Initialize IsRegistered to false
            IsRegistered = false;
        }

        // These properties are auto-implemented and read only (init allows setting via constructor).
        public string CourseNumber { get; init; }
        public string CourseTitle { get; init; }
        public int Credits { get; init; }
        public int LengthInWeeks { get; init; }
        // IsRegistered is read-write
        public bool IsRegistered { get; set; }

    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace u04a1_Registration_WinForm
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace u04a1_Registration_WinForm
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

private void courseComboBox_SelectedIndexChanged(object sender, EventArgs e)
{
    //courseComboBox.SelectedIndex = -1;
    
    Course selectedCourse = courseComboBox.SelectedItem as Course;

    if (selectedCourse == null)
    {
        statusMessageText.Text = "Please select a course: ";
        return;
    }

    if (selectedCourse.IsRegistered)
    {
        statusMessageText.Text = "You are already registered for this course: ";
        return;
    }

    //Register for the Course
    selectedCourse.IsRegistered = true;

    //update the ComboBox displaying the registered courses
    courseComboBox.Items.Add(selectedCourse.CourseTitle);

    //update total credits
    totalCredits += selectedCourse.Credits;

    //Display a success message
    statusMessageText.Text = $"Registered for {selectedCourse.CourseTitle}";
}

private void courseComboBox_SelectedIndexChanged(object sender, EventArgs e)
{
    //courseComboBox.SelectedIndex = -1;
    
    Course selectedCourse = courseComboBox.SelectedItem as Course;

    if (selectedCourse == null)
    {
        statusMessageText.Text = "Please select a course: ";
        return;
    }

    if (selectedCourse.IsRegistered)
    {
        statusMessageText.Text = "You are already registered for this course: ";
        return;
    }

    //Register for the Course
    selectedCourse.IsRegistered = true;

    //update the ComboBox displaying the registered courses
    courseComboBox.Items.Add(selectedCourse.CourseTitle);

    //update total credits
    totalCredits += selectedCourse.Credits;

    //Display a success message
    statusMessageText.Text = $"Registered for {selectedCourse.CourseTitle}";
}

 using (StreamReader sr = new StreamReader(@"Data\course.data.txt"))
{
    string line;
    while ((line = sr.ReadLine()) != null)
    {
        // Parse data and add Course objects to courses List as they are created
        string[] data = line.Split(',');
        // Need to convert credits and weeks to integers
        courses.Add(new Course(data[0], data[1], Convert.ToInt16(data[2]), 
            Convert.ToInt16(data[3])));
    }
}

 using (StreamReader sr = new StreamReader(@"Data\course.data.txt"))
{
    string line;
    while ((line = sr.ReadLine()) != null)
    {
        // Parse data and add Course objects to courses List as they are created
        string[] data = line.Split(',');
        // Need to convert credits and weeks to integers
        courses.Add(new Course(data[0], data[1], Convert.ToInt16(data[2]), 
            Convert.ToInt16(data[3])));
    }
}

courseComboBox.DataSource = courses;
courseComboBox.DisplayMember = "CourseNumber";
courseComboBox.ValueMember = "CourseNumber";

courseComboBox.DataSource = courses;
courseComboBox.DisplayMember = "CourseNumber";
courseComboBox.ValueMember = "CourseNumber";

private void courseComboBox_SelectedIndexChanged(object sender, EventArgs e)

private void courseComboBox_SelectedIndexChanged(object sender, EventArgs e)

private void completeRegistrationButton_Click(object sender, EventArgs e)

private void completeRegistrationButton_Click(object sender, EventArgs e)

I expected that line of code to add the course by its course title to the already registered box
IsRegistered* I apologize

I expected that line of code to add the course by its course title to the already registered box
IsRegistered* I apologize

Course selectedCourse = courseComboBox.SelectedItem as Course;

if (selectedCourse == null)
{
    statusMessageText.Text = "Please select a course: ";
    return;
}

if (selectedCourse.IsRegistered)
{
    statusMessageText.Text = "You are already registered for this course: ";
    return;
}

//Register for the Course
selectedCourse.IsRegistered = true;

//update the ComboBox displaying the registered courses
courseComboBox.Items.Add(selectedCourse.CourseTitle);

//update total credits
totalCredits += selectedCourse.Credits;

//Display a success message
statusMessageText.Text = $"Registered for {selectedCourse.CourseTitle}";

Course selectedCourse = courseComboBox.SelectedItem as Course;

if (selectedCourse == null)
{
    statusMessageText.Text = "Please select a course: ";
    return;
}

if (selectedCourse.IsRegistered)
{
    statusMessageText.Text = "You are already registered for this course: ";
    return;
}

//Register for the Course
selectedCourse.IsRegistered = true;

//update the ComboBox displaying the registered courses
courseComboBox.Items.Add(selectedCourse.CourseTitle);

//update total credits
totalCredits += selectedCourse.Credits;

//Display a success message
statusMessageText.Text = $"Registered for {selectedCourse.CourseTitle}";

Course a = new Course { CourseNumber = "1234" },
Course b = new Course { CourseNumber = "5678" },
Course c = new Course { CourseNumber = "9101" }

List<Course> course = new List<Course>(new [] { a, b, c });

// a bunch of stuff

// now we select the SECOND one in the combobox labelled as 5678
Course selectedCourse = courseComboBox.SelectedItem as Course;

Course a = new Course { CourseNumber = "1234" },
Course b = new Course { CourseNumber = "5678" },
Course c = new Course { CourseNumber = "9101" }

List<Course> course = new List<Course>(new [] { a, b, c });

// a bunch of stuff

// now we select the SECOND one in the combobox labelled as 5678
Course selectedCourse = courseComboBox.SelectedItem as Course;

        private void registeredCourseList_SelectedIndexChanged(object sender, EventArgs e)
        {

        }
    }
}

        private void registeredCourseList_SelectedIndexChanged(object sender, EventArgs e)
        {

        }
    }
}

using Capella.IT4747;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System.Collections.Generic;
namespace TestValidator
{
[TestClass]
public class ValidatorTest
{
private List<Course> courses;
// Set up List of Course objects to be used for each test
[TestInitialize]
public void Setup()
{
courses = new List<Course>();
courses.Add(new Course("IT2230", "Introduction to Databases", 3, 5));
courses[0].IsRegisteredFor = true;
courses.Add(new Course("IT2240", "Introduction to Programming - C", 3, 5));
courses[1].IsRegisteredFor = false;
courses.Add(new Course("IT2249", "Introduction to Java", 6, 10));
courses[2].IsRegisteredFor = false;
}
[TestMethod]
public void TestValidateRegistration_Duplicate()
{
const int expectedResult = -2;
int result = Validator.ValidateRegistration(0, courses);
Assert.AreEqual(expectedResult, result);
}
[TestMethod]
public void TestValidateRegistration_OverCreditLimit()
{
// Now registered for 6 credits
courses[1].IsRegisteredFor = true;
// Try to register for 6-credit course
int result = Validator.ValidateRegistration(2, courses);
const int expectedResult = -3;
Assert.AreEqual(expectedResult, result);
}
[TestMethod]
public void TestValidateRegistration_ValidRequest()
{
const int expectedResult = 0;
int result = Validator.ValidateRegistration(1, courses);
Assert.AreEqual(expectedResult, result);
}
}
}

using Capella.IT4747;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System.Collections.Generic;
namespace TestValidator
{
[TestClass]
public class ValidatorTest
{
private List<Course> courses;
// Set up List of Course objects to be used for each test
[TestInitialize]
public void Setup()
{
courses = new List<Course>();
courses.Add(new Course("IT2230", "Introduction to Databases", 3, 5));
courses[0].IsRegisteredFor = true;
courses.Add(new Course("IT2240", "Introduction to Programming - C", 3, 5));
courses[1].IsRegisteredFor = false;
courses.Add(new Course("IT2249", "Introduction to Java", 6, 10));
courses[2].IsRegisteredFor = false;
}
[TestMethod]
public void TestValidateRegistration_Duplicate()
{
const int expectedResult = -2;
int result = Validator.ValidateRegistration(0, courses);
Assert.AreEqual(expectedResult, result);
}
[TestMethod]
public void TestValidateRegistration_OverCreditLimit()
{
// Now registered for 6 credits
courses[1].IsRegisteredFor = true;
// Try to register for 6-credit course
int result = Validator.ValidateRegistration(2, courses);
const int expectedResult = -3;
Assert.AreEqual(expectedResult, result);
}
[TestMethod]
public void TestValidateRegistration_ValidRequest()
{
const int expectedResult = 0;
int result = Validator.ValidateRegistration(1, courses);
Assert.AreEqual(expectedResult, result);
}
}
}

totalCredits += totalCreditValueLabel.Text;

totalCredits += totalCreditValueLabel.Text;