why ? I implements IEnumerable , put breakpoint the GetEnumerator, but never hit it.

[Antonio Daniel Nguyen]

Hi, everybody I have a question with implemeting IEnumerable and execute foreach see the breakpoint position. Why does VS debug not enter

public class Person
{
public Person(string fName, string lName)
{
this.firstName = fName;
this.lastName = lName;
}
public string firstName;
public string lastName;
}

// Collection of Person objects. This class
// implements IEnumerable so that it can be used
// with ForEach syntax.
public class People : IEnumerable
{
private Person[] _people;
public People(Person[] pArray)
{
_people = new Person[pArray.Length];

for (int i = 0; i < pArray.Length; i++)
{
_people = pArray;
}
}

// Implementation for the GetEnumerator method.
IEnumerator IEnumerable.GetEnumerator()
{
//Breakpoint here.
System.Diagnostics.Debug.WriteLine( " GetEnumerator()");
return (IEnumerator)GetEnumerator();
}

public PeopleEnum GetEnumerator()
{
return new PeopleEnum(_people);
}
}

// When you implement IEnumerable, you must also implement IEnumerator.
public class PeopleEnum : IEnumerator
{
private Person[] _people;

// Enumerators are positioned before the first element
// until the first MoveNext() call.
int position = -1;

public PeopleEnum(Person[] list)
{
_people = list;
}

public bool MoveNext()
{
position++;
return (position < _people.Length);
}

public void Reset()
{
position = -1;
}

object IEnumerator.Current
{
get
{
return Current;
}
}

public Person Current
{
get
{
return _people[position];

}
}
}


class Program
{
static void Main(string[] args)
{
Person[] persons = new Person[1]{ new Person("test ","Nguyen") };
People people = new People(persons);
foreach (var person in people)
{
Console.WriteLine( person.firstName + " " + person.lastName);

}
}
}


---------------------------------------------------------------------------

expect: Break point is hit.

actual: Break point not enter.

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