Example of IEnumerable

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

/**
@Author: Sajmon
*/
namespace Practise2
{
    public class Student
    {
        private String name;
        private int age;

        public Student(String name, int age) {
            this.name = name;
            this.age = age;
        }

        public String GetName()
        {
            return this.name;
        }

        public int GetAge()
        {
            return this.age;
        }

    }
}



using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;

/**
@Author: Sajmon
*/
namespace Practise2
{
    public class StudentList : IEnumerable {

        private List<Student> students;
        private int index;


        public StudentList()
        {
            this.students = new List<Student>();
            this.index = -1;

        }

        public IEnumerator GetEnumerator() {

            return (students as IEnumerable).GetEnumerator();
        }


        public void Add(Student item)
        {
            this.students.Add(item);
        }


        public Student Current {
            get
            {
                return this.students[index];
            }
        }


        public void Reset()
        {
            this.index = -1;
        }


        public Boolean HasNext() {
            index++;
            if (index < students.Count)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
    }
}



using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Practise2;

/**
@Author: Sajmon
*/
namespace Program
{
    class Program
    {
        static void Main(string[] args)
        {
            StudentList students = new StudentList();

            Student student = new Student("Peter Bednar", 28);
            Student student2 = new Student("Jiri Walder", 34);
            Student student3 = new Student("Lumir Navrat", 30);
            Student student4 = new Student("Michal Kratky", 42);
            Student student5 = new Student("Radoslav Fasuga", 35);

            students.Add(student);
            students.Add(student2);
            students.Add(student4);
            students.Add(student5);
            students.Add(student3);

            while (students.HasNext()) {
                Console.WriteLine(students.Current.GetName() + " " + students.Current.GetAge());
            }
        }
    }
}