将用户输入添加到类列表

Question

I have a computer assignment I am stuck on. I have to make a list of college classes, and let the user add to or delete from that list. I have the basic list made, and my printmenu loop, but cannot figure out how to make the user input into another Class in classlist.

Here is my main.cs thus far....

using System;
using System.Collections.Generic;

namespace Lab04
{
    class MainClass
    {
        public static string prefix;
        public static int coursenumber;
        public static int credithours;
        public static string coursedescription;


        public static void Main (string[] args) //creates 4 courses (used some leftover Lab 03 data and some new) 
        {

            Course c1 = new Course();
            Course c2 = new Course("ENGL", 1102, 3, "Second level class for English Composition.");
            Course c3 = new Course("GEOG", 1113, 4, "This is an online lab course for Geography.");
            Course c4 = new Course("BWV", 101, 2, "This is basket weaving on a college level, for those of you who need a break.");


            Console.WriteLine ("Here are your current courses for this semester:");

            List<Course> classlist = new List<Course>();
            classlist.Add (c1);
            classlist.Add (c2);
            classlist.Add (c3);
            classlist.Add (c4);

            foreach(Course c in classlist) 
                Console.WriteLine(c + " ");
            Console.WriteLine();

            int choice;
            do {
            PrintMenu();
            choice = Int32.Parse (Console.ReadLine());
            ProcessChoice(choice);
            } while (choice != 4);
            Console.WriteLine ("Thank you for using this system.");

        }

        public static void PrintMenu() //print menu for user input
        {
            Console.WriteLine("Main Menu:"); 
            Console.WriteLine("1. Add a Course to the list.");
            Console.WriteLine("2. Delete a Course from the list.");
            Console.WriteLine("3. Print your class schedule.");
            Console.WriteLine("4. Exit this System.");
            Console.WriteLine("Please enter your numerical choice.");

        }

        static void ProcessChoice(int c) // do while loop code for user input
        {
            if (c == 1)
            {
                Console.WriteLine ("Please enter the Course prefix.");
                prefix = Console.ReadLine();
                Console.WriteLine ("Please enter the Course number.");
                coursenumber = Int32.Parse(Console.ReadLine());
                Console.WriteLine ("How many credit hours is this course worth?");
                credithours = Int32.Parse(Console.ReadLine());
                Console.WriteLine ("Please enter a short course description.");
                coursedescription = Console.ReadLine();
            }

            else if (c == 2)
            {
                Console.WriteLine ("Which course would you like to remove?");
            }

            else if (c == 3)
            {
                Console.WriteLine ("Displaying current class schedule.");


            }
        }
    }
}

I looked at this post Adding multiple user input to a List c# , but since it just added integers, not a whole class to the list, it did not answer my question

Answer 1

There are multiple ways. One way is to make classlist global and

public void ProcessChoice(int c)
{
    if (c == 1)
    {
        //Get the input from console
        classlist.Add(new Course{
            prefix = prefix,
            coursenumber = coursenumber,
            credithours = credithours,
            coursedescription = coursedescription 
        });
    }   
}