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Category: Programming
Level: Beginner to seasoned
900 pages
ISBN-10 097661322-0
ISBN-13 978-097661322-0
$59.99 USA
$79.99 CANADA


Listing 14-35 extracted from chapter Unsafe code, exceptions, anonymous methods, iterators


Listing 14-34<     > Listing 14-36


This listing can be compiled with the command line:
csc.exe /target:exe Example_14_35.cs
Errors: 0 Warnings: 0


Example_14_35.cs
public class Persons : System.Collections.IEnumerable {
   private class PersonsEnumerator : System.Collections.IEnumerator {
      private int index = -1;
      private Persons P;
      public PersonsEnumerator(Persons p){ this.P = p; }
      public bool MoveNext() {
         index++;
         return index < P.m_Names.Length;
      }
      public void Reset() { index = -1; }
      public object Current { get return P.m_Names[index]; } }
   }
   // The method GetEnumerator() of IEnumerable.
   public System.Collections.IEnumerator GetEnumerator(){
      return new PersonsEnumerator(this);
   }
   string[] m_Names;
   // The constructor to initialize the array.
   public Personsparams string[] Names ){
      m_Names = new string[Names.Length];
      // Copy the array.
      Names.CopyTo(m_Names, 0);
   }
   // An indexer that returns the name from the index.
   private string this[int index]{
      get return m_Names[index]; }
      set { m_Names[index] = value; }
   }
}
class Program {
   static void Main() {
      Persons arrPersons = new Persons(
                         "Michel""Christine""Mathieu""Julien");
      System.Collections.IEnumerator e = arrPersons.GetEnumerator();
      while (e.MoveNext())
         System.Console.WriteLine((string)e.Current);
   }
}	
Copyright Patrick Smacchia 2006 2007