Hash Table in C# progrmming

 

For Example: Write a program using Hash Table with windows form.

(First Create button and then set Name properties as button1_Click_Click)

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Collections;

namespace form

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

 

        private void button1_Click_Click(object sender, EventArgs e)

        {

            Hashtable weeks = new Hashtable();

            weeks.Add("1", "SunDay");

            weeks.Add("2", "MonDay");

            weeks.Add("3", "TueDay");

            weeks.Add("4", "WedDay");

            weeks.Add("5", "ThuDay");

            weeks.Add("6", "FriDay");

            weeks.Add("7", "SatDay");

            //Display a single Item

 

            MessageBox.Show(weeks["5"].ToString());

            //Search an Item

            if (weeks.ContainsValue("TueDay"))

            {

                MessageBox.Show("Find");

            }

            else

            {

                MessageBox.Show("Not find");

            }

            //remove an Item

            weeks.Remove("3");

            //Display all key value pairs

            foreach (DictionaryEntry day in weeks)

            {

                MessageBox.Show(day.Key + "   -   " + day.Value);

            }

        }

    }

}

Output: