public interface IEnumerator { bool MoveNext (); object Current { get;} void Reset (); } This interface just supports navigation across items -- Iteration You can implement it across your objects as below... class staff : IEnumerable { private Human[] employees = new Human[4]; public staff() { employees[0] = new Human("bob"); employees[1] = new Human("chris"); employees[2] = new Human("jennifer"); employees[3] = new Human("Brian"); } public IEnumerator GetEnumerator() { return employees.GetEnumerator(); } } class Human { public string Name{get;set;} public Human(string name) { Name = name; } } Here is navigation.... staff office = new staff(); foreach (Human h in office ) { MessageBox.Show(h.Name); }

public IEnumerator GetEnumerator() { // this can be replaced // return employees.GetEnumerator(); foreach (Human c in employees) { yield return c; } }