using System;
 
public class Test
{
	public static void Main()
	{
		var items = new int[] {1, 2, 3, 4, 5, 6, 7};
 
		var enumerator = items.GetEnumerator();
 
		using (enumerator as IDisposable)
		{
			var exists = enumerator.MoveNext();
 
			if (exists)
			{
				do
				{
					var item = enumerator.Current;
					exists = enumerator.MoveNext();
 
					Console.WriteLine(exists ? "{0}" : "{0} is the last one", item);
				}
				while (exists);
			}
		}
	}
}

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