Key Value pair in C#.net

Question

I want the source code in c# .net regarding with key value pair in such a way that If the client enters the Key of string data type & output should be printed as an Integer value consisting of 8 numbers ie integer data type as chosen in such a way that these Key & Value are in the text file (.txt) in which it should read the key in the text file & should print the appropriate integer value as entered in the text file as the output.

I want the solution for this as soon as possible in c# 4.0 framework or Visual Studio 2010 coding design.

Answer 1

The basic code to do that would be as follows:

using System;

using System.IO;

using System.Collections;

class Program

{

   static void Main()

   {

      string[] lines = File.ReadAllLines("tvfun.txt");  

      Hashtable htk = new Hashtable();

      foreach(string line in lines)

      {

         string[] items = line.Split('=');

         htk.Add(items[0], int.Parse(items[1]));

      }

      while(true)

      {

         Console.WriteLine("Enter any Command or q to quit");

         string key = Console.ReadLine().ToUpper();

         if (key == "Q") return;

         if (htk.ContainsKey(key))

         { 

            Console.WriteLine("A key of '{0}' corresponds to a value of {1}\n", key, htk[key]);

         }

         else

         {

            Console.WriteLine("The key '{0}' does not exist in the file\n", key);

         }

      }

   

   }

}