Iterator Workflow : IEnumerator « Data Structure « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Data Structure
3. IEnumerator

using System;
    using System.Collections.Generic;
    using System.ComponentModel;

    class IteratorWorkflow
    {
        static readonly string Padding = new string(' ', 30);

        static IEnumerable<int> GetEnumerable(){
            Console.WriteLine(Padding);
            for (int i = 0; i < 3; i++){
                Console.WriteLine("{0}About to yield {1}", Padding, i);
                yield return i;
                Console.WriteLine("{0}After yield", Padding);
            }
            Console.WriteLine(Padding);
            yield return -1;
        }
        static void Main(){
            IEnumerable<int> iterable = GetEnumerable();
            IEnumerator<int> iterator = iterable.GetEnumerator();
            while (true){
                bool result = iterator.MoveNext();
                Console.WriteLine(result);
                if (!result)
                {
                    break;
                }
                Console.WriteLine(iterator.Current);
            }
        }
    }