LabExer3-4_Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using MyDLL;

namespace StudentData
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                Student stud = new Student();
                int choice, studnumber;
                string coursecode;

                Console.WriteLine("====================");
                Console.WriteLine("======= MENU =======");
                Console.WriteLine("====================");
                Console.WriteLine("[1] Add Student\n[2] Display All\n[3] Display Student\n[4] Display Course");
                Console.WriteLine("====================");
                Console.Write("Enter your choice: ");

                choice = Convert.ToInt32(Console.ReadLine());
                switch (choice)
                {
                  case 1: EnrollStudent(stud);
                        break;
                  case 2: DisplayStudentProfile();
                        break;
                  case 3: Console.WriteLine("Enter student number: ");
                          studnumber = Convert.ToInt32(Console.ReadLine());
                        break;
                  case 4: Console.WriteLine("Enter course code: ");
                          coursecode = Convert.ToString(Console.ReadLine());
                        break;
                  default: Console.WriteLine("Invalid input. Please enter from numbers 1-4 only.");
                        break;
                 }
            }
            catch (FormatException e)
            {
                Console.WriteLine(e.Message);
            }


            Console.Read();
        }

        static void EnrollStudent(Student s)
        {
            Console.Clear();
            try
            {
                string path = @"D:\MCL\StudentsData\";
                path = string.Concat(path, ".txt");

                using (StreamWriter sw = new StreamWriter(path))
                {
                    Console.Write("Enter student number: ");
                    s.StudNum = Convert.ToInt32(Console.ReadLine());
                    sw.WriteLine(s.StudNum);

                    Console.Write("Enter full name of student: ");
                    s.FullName = Console.ReadLine();
                    sw.WriteLine(s.FullName);

                    Console.Write("Enter student program: ");
                    s.StudProgram = Console.ReadLine();
                    sw.WriteLine(s.StudProgram);

                    Console.Write("Enter father's name: ");
                    s.FatherName = Console.ReadLine();
                    sw.WriteLine(s.FatherName);

                    Console.Write("Enter mother's name: ");
                    s.MotherName = Console.ReadLine();
                    sw.WriteLine(s.MotherName);

                    Console.Write("Enter birthdate [yyyymmdd]: ");
                    s.BirthDate = Convert.ToInt32(Console.ReadLine());
                    sw.WriteLine(s.BirthDate);

                    for (int i = 0; i < s.StudCourse.Length; i++)
                    {
                        Console.Write("Enter Course {0}: ", i + 1);
                        s.StudCourse[i] = Console.ReadLine();
                        sw.WriteLine(s.StudCourse[i]);
                    }

                    sw.Close();
                }
            }
            catch (IOException e)
            {
                Console.WriteLine(e.Message);
            }
        }

        public static void DisplayStudentProfile()
        {
            try
            {
                string path = @"D:\MCL\StudentsData\";
                path = string.Concat(path, ".txt");

                string[] stud = File.ReadAllLines(path);
                Student s = new Student();

                s.FullName = (string)stud.GetValue(0);
                for (int i = 0; i < stud.Length - 6; i++)
                {
                    s.StudCourse[i] = (string)stud.GetValue(i + 6);
                }

                foreach (string data in stud)
                {
                    Console.WriteLine(data);
                }
            }
            catch (IOException e)
            {
                Console.WriteLine(e.Message);
            }
            catch (IndexOutOfRangeException e)
            {
                Console.WriteLine(e.Message);
            }
        }
    }
}