I'm making a simple console-program. This program is supposed to give the user a console-menu that will give you three choices: To add an employee to a list, remove an employee from the list, and then to exit. I am trying to create a list that will add different users to the list after they have been initialized by user input. After that I want to print the list to console, but the list wont hold on to any input. If anyone has a clue whats wrong, please tell me! Also, I am fairly new to coding, so extensive explanations are greatly appreciated. Thank you!

using Employees;

namespace Inheritance
{
    public class Program
    {
        static void Main(string[] args)
        {
            bool keepRunning = true;
            while (keepRunning)
            {
                List<Employee> EmployeesList = new List<Employee>();

                 void AddToList(Employee employee)
                {
                    EmployeesList.Add(employee);
                }

                Console.WriteLine("TIFFANYS & CO - PRIVATE PROGRAM TM\nPress the number of the action you want to pursue, and press [ENTER].\n1) Add an Employee\n2) Delete an Employee\n3) Exit");
                var menuChoice = Int32.Parse(Console.ReadLine());
                switch (menuChoice)
                {
                    case 0:
                        foreach (Employee item in EmployeesList)                    
                        {                                                    
                            Console.WriteLine(item.firstName   " "   item.lastName   " "   item.salary);

                        }
                        break;
                    case 1:
                        Console.WriteLine("a) Add a Manager\nb) Add an Engineer\nc) Add a Researcher");
                        var menuChoice1 = Console.ReadLine();

                        switch (menuChoice1)
                        {
                            case "a":


                                Console.WriteLine("Please type in the first name of the manager and press [ENTER]:");
                                string managerFirstName = Console.ReadLine();
                                Console.WriteLine("Please type in the last name of the manager and press [ENTER]:");
                                string managerLastName = Console.ReadLine();
                                Console.WriteLine("Please type in the salary of the manager and press [ENTER]:");
                                int managerSalary = Int32.Parse(Console.ReadLine());
                                Console.WriteLine("Please type in how many meetings the manager will attend weekly and press [ENTER]:");
                                int managerMeetings = Int32.Parse(Console.ReadLine());
                                Console.WriteLine("Please type in how many vacation-weeks the manager has annually and press [ENTER]:");
                                int managerVacationWeeks = Int32.Parse(Console.ReadLine());

                                Manager manager = new(managerFirstName, managerLastName, managerSalary, managerMeetings, managerVacationWeeks);
                                EmployeesList.Add(manager);
                                foreach (var employee in EmployeesList)

                                {
                                    Console.WriteLine(employee);
                                }

                                break;

                            case "b":


                                Console.WriteLine("Please type in the first name of the engineer and press [ENTER]:");
                                string engineerFirstName = Console.ReadLine();
                                Console.WriteLine("Please type in the last name of the engineer and press [ENTER]:");
                                string engineerLastName = Console.ReadLine();
                                Console.WriteLine("Please type in the salary of the engineer and press [ENTER]:");
                                int engineerSalary = Int32.Parse(Console.ReadLine());
                                //Console.WriteLine("Is the engineer able to use C#? If yes, type [yes] and press [ENTER]. If no, type [no] and press [ENTER]:");
                                //string cSkill = Console.ReadLine();
                                //if (cSkill == "yes")
                                //{
                                //    engineer.cSharpSkill = true;
                                //}
                                //else
                                //{
                                //    engineer.cSharpSkill = false;
                                //}
                                Console.WriteLine("How many years of experience does the engineer have? Type the number of years and press [ENTER]:");
                                int engineerExperience = Int32.Parse(Console.ReadLine());
                                Console.WriteLine("What kind of engineering is the engineers field? Please write their field and press [ENTER]:");
                                string engineerField = Console.ReadLine();

                                Engineer engineer = new(engineerFirstName, engineerLastName, engineerSalary, engineerExperience, engineerField);

                                EmployeesList.Add(engineer);

                                break;

                            case "c":


                                Console.WriteLine("Please type in the first name of the researcher and press [ENTER]:");
                                string researcherFirstName = Console.ReadLine();
                                Console.WriteLine("Please type in the last name of the researcher and press [ENTER]:");
                                string researcherLastName = Console.ReadLine();
                                Console.WriteLine("Please type in the salary of the researcher and press [ENTER]:");
                                int researcherSalary = Int32.Parse(Console.ReadLine());
                                Console.WriteLine("What university did the researcher get their Doctorate? Please type in the name of the university and press [ENTER]:");
                                string researcherUniversity = Console.ReadLine();
                                Console.WriteLine("What was the thesis statement of the researchers doctorate? Please type in the thesis question and press [ENTER]:");
                                string researcherThesis = Console.ReadLine();
                                Researcher researcher = new(researcherFirstName, researcherLastName, researcherSalary, researcherUniversity, researcherThesis);

                                EmployeesList.Add(researcher);
                                break;
                        }

                        break;

                    case 2:

                        Console.WriteLine("What is the last name of the engineer to be deleted?");
                        string toDeleteLastName = Console.ReadLine();
                        Employee employeeToBeDeleted = EmployeesList.Find(e => e.lastName == toDeleteLastName);
                        if (employeeToBeDeleted != null)
                            EmployeesList.Remove(employeeToBeDeleted);
                        else
                            Console.WriteLine($"Could not find {employeeToBeDeleted}");
                        break;


                    case 3:
                        keepRunning = false;
                        break;
                }
            }
        }
    }
}

CodePudding user response：

There is a library installed via NuGet,

CodePudding user response：

You have the loop setup this way:

while (keepRunning)
{
    List<Employee> EmployeesList = new List<Employee>();

So every time you loop you delete the list of employees and get a new one. Try swapping the order:

List<Employee> EmployeesList = new List<Employee>();
while (keepRunning)
{

This way you start your program with a fresh employee list and use that same list while your program is running.