When IEnumerator.Reset() method is called?

Question

let\'s have this code :

class MyList : IEnumerable, IEnumerator
{
    int[] A = { 1, 2, 3, 4, 5 };
    int i = -1;

    #region IEnumerator Members

    pub         


        

Answer 1

Reset is redundant; so much so that it is a requirement in the language spec for iterator blocks to throw an exception on Reset. The correct thing to do is simply dispose and release the old iterator, and call GetEnumerator again. Or better: avoid having to read it twice, since not all data is repeatable.