Generic IEnumerator/IEnumerable : Generic IEnumerator : Generic C# Examples

    
using  System;
using  System.Collections;
using  System.Collections.Generic;
using  System.Text;

class  StringEnumerator  :  IEnumerator<string>
{
      string[]  Strings;  int  Position  =  -1;

      public  string  Current                                                  
      {
            get  {  
                  return  Strings[Position];  
            }
      }

      object  IEnumerator.Current                                        
      {
            get  {  
                return  Strings[Position];  
            }
      }

      public  bool  MoveNext()                                                
      {
            if  (Position  <  Strings.Length  -  1)
            {  
                Position++;  
                return  true;  
            }
            else
                  return  false;
      }

      public  void  Reset()                                                      
      {
            Position  =  -1;
      }

      public  void  Dispose()  {  }

      public  StringEnumerator(string[]  strings)            
      {
            Strings  =  new  string[strings.Length];
            for  (int  i  =  0;  i  <  strings.Length;  i++)
                  Strings[i]  =  strings[i];
      }
}

class  MyStrings  :  IEnumerable<string>
{
      string[]  Strings  =  {  "AAA",  "BBB",  "CCC"  };

      public  IEnumerator<string>  GetEnumerator()        
      {
            return  new  StringEnumerator(Strings);
      }

      IEnumerator  IEnumerable.GetEnumerator()              
      {
            return  new  StringEnumerator(Strings);
      }
}

class  Program
{
      static  void  Main()
      {
            MyStrings  mc  =  new  MyStrings();
            foreach  (string  st  in  mc)
                  Console.Write("{0}    ",  st);
            Console.WriteLine("");
      }
}