form1.cs

XmlSerialization this is only an example of how to use the XmlSerialization library in .net

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.Xml.Serialization;
using System.IO;

namespace XmlSerialization
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            ShoppingList shoppingList = new ShoppingList();
            shoppingList.AddItem(new ShoppingItem("Egg", 0.02));
            shoppingList.AddItem(new ShoppingItem("Basket", 12.05));
            shoppingList.AddItem(new ShoppingItem("Football", 50));

            XmlSerializer xmlSerializer = new XmlSerializer(typeof(ShoppingList));
            TextWriter w = new StreamWriter("C:\\list.xml");
            xmlSerializer.Serialize(w, shoppingList);
            w.Close();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            GC.Collect();
            XmlSerializer xmlSerializer = new XmlSerializer(typeof(ShoppingList));
            TextReader r = new StreamReader("C:\\list.xml");
            ShoppingList shoppingList = (ShoppingList)xmlSerializer.Deserialize(r);
            MessageBox.Show(shoppingList.Items[0].Name + ": " + shoppingList.Items[1].Price);
            r.Close();
        }
    }
}