IEnumerator

Many interfaces and classes inherit/implements the IEnumerable<T> interface to implement enumerators. IEnumerable declares a method

public IEnumerator GetEnumerator()

and

IEnumerator supports a simple iteration over collections

See
http://msdn.microsoft.com/en-us/library/78dfe2yb.aspx[^]

and

http://msdn.microsoft.com/en-us/library/s793z9y2.aspx[^]

Regards
Espen Harlinn

This[^] might help you out as well.

Come on, the usual use of IEnumerable is foreach contruct; start from there:

var items = new SomeClass(/* ... */);
//...

foreach(var item in items) { /* use item */ }

How can it be possible? This is because SomeClass
implements IEnumerable:

class SomeClass : IEnumerable {
    IEnumerator IEnumerable.GetEnumerator() { /* ... */ }
    //...
} //class SomeClass

As soon as you get it, read about using and IEnumerable. It will show you need to implement GetEnumerator and return IEnumerator. And finally IEnumerator requires you to implement iteration steps -- easy enough.