using System;

using System.Collections;

using System.Windows.Forms;

using System.Collections.Specialized;



namespace WindowsApplication1

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }



        private void button1_Click(object sender, EventArgs e)

        {

            NameValueCollection markStatus = new NameValueCollection();

            string[] values = null;



            markStatus.Add("Very High", "80");

            markStatus.Add("High", "60");

            markStatus.Add("medium", "50");

            markStatus.Add("Pass", "40");



            foreach (string key in markStatus.Keys)

            {

                values = markStatus.GetValues(key);

                foreach (string value in values)

                {

                    MessageBox.Show (key + " - " + value);

                }

            } 

        }

    }

}