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"]);

		}

	}

}