IDictionaryEnumerator for HashTable : IDictionaryEnumerator « Data Structure « C# / CSharp Tutorial

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

using System;
using System.Collections;

  class Class1
  {
    [STAThread]
    static void Main(string[] args)
    {
            Hashtable dir = new Hashtable();
            dir.Add( 'N', "North" );
            dir.Add( 'S', "South." );
            dir.Add( 'W', "West" );
            dir.Add( 'E', "East" );
            dir.Add( 'Q', "Goodbye" );

            char input;

            do
            {
                Console.Write( "Enter a direction (N,S,E,W) or Q to quit: " );
                input = Char.ToUpper(Console.ReadLine()[0]);
                Console.WriteLine( dir[Char.ToUpper(input)]);

            } while( input != 'Q' );

            PrintHashtable( dir );
            dir.Remove( 'Q' );
            dir.Clear();
    }

        static void PrintHashtable( Hashtable ht )
        {
            IDictionaryEnumerator htEnum = ht.GetEnumerator();
            while( htEnum.MoveNext() )
            {
                Console.WriteLine( "Key: {0}\tValue: {1}", htEnum.Key, htEnum.Value );
            }

            foreach( char key in ht.Keys )
            {
                Console.WriteLine( key );
            }
        }
  }