OvrIndexer.cs

using System;
/// 

/// Implements overloaded indexers.
/// 

namespace IndiLogiX.Tutorial
{
	class OvrIndexer
	{
		private string[] myData;
		private int arrSize;
		public OvrIndexer(int size)
		{
			arrSize = size;
			myData = new string[size];
			for (int i=0; i < size; i++)
			{
				myData[i] = "empty";
			}
		}
		public string this[int pos]
		{
			get
			{
				return myData[pos];
			}
			set
			{
				myData[pos] = value;
			}
		}<--more-->
		public string this[string data]
		{
			get
			{
				int count = 0;
				for (int i=0; i < arrSize; i++)
				{
					if (myData[i] == data)
					{
						count++;
					}
				}
				return count.ToString();
			}
			set
			{
				for (int i=0; i < arrSize; i++)
				{
					if (myData[i] == data)
					{
						myData[i] = value;
					}
				}
			}
		}
		static void Main(string[] args)
		{
			int size = 10;
			OvrIndexer myInd = new OvrIndexer(size);
			myInd[9] = "Some Value";
			myInd[3] = "Another Value";
			myInd[5] = "Any Value";
			myInd["empty"] = "no value";
			Console.WriteLine("\nIndexer Output\n");
			for (int i=0; i < size; i++)
			{
				Console.WriteLine("myInd[{0}]: {1}", i, myInd[i]);
			}
			Console.WriteLine("\nNumber of \"no value\" entries: {0}",
			myInd["no value"]);
		}
	}
}