Answer Posted / gp_bellamkonda

What Sumit suggested was correct.Adding few more points to
it.

--The iterator code uses the yield return statement to
return each element in turn. yield break ends the
iteration. For more information, see yield.

--Multiple iterators can be implemented on a class. Each
iterator must have a unique name just like any class
member, and can be invoked by client code in a foreach
statement as follows: foreach(int x in
SampleClass.Iterator2){}

--The return type of an iterator must be IEnumerable,
IEnumerator, IEnumerable<T>, or IEnumerator<T>.

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