.NET Framework Standard Library Annotated Reference, Volume 1: Base Class Library and Extended Numerics Library

Example

using System;
using System.Collections;

namespace Samples
{
  public class IDictionarySample 
  {
    public static void Main()  
    {
      IDictionary id = new Hashtable();
      id.Add(1, "damien");
      id.Add(2, "mark");
      id.Add(3, "brad");
      DisplayDictionary(id);
    }
    public static void DisplayDictionary(IDictionary id)
    {
      Console.WriteLine("Count: {0}", id.Count );
      IDictionaryEnumerator ide = id.GetEnumerator();
      while(ide.MoveNext())
      {
        DictionaryEntry de = ide.Entry;
        Console.WriteLine("Key: {0} Value: {1}",
                          de.Key,
                          de.Value);
      }
    }
  }
}

The output is

Count: 3
Key: 3 Value: brad
Key: 2 Value: mark
Key: 1 Value: damien