C#读取XML配置文件

<?xml version="1.0" encoding="utf-8" ?>
<DataSource>
<type>
<ID>001</ID>
<name>张三</name>
</type>
<type>
<ID>002</ID>
<name>李四</name>
</type>
<type>
<ID>003</ID>
<name>王五</name>
</type>
</DataSource>

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;

namespace 超市收银Demo
{
public partial class Main : Form
{
public Main()
{
InitializeComponent();
}

private void button_loadXML_Click(object sender, EventArgs e)
{
this.listBox1.Items.Clear();
DataSet set = new DataSet();
set.ReadXml(Application.StartupPath + "\\DataSource.xml");
foreach (DataRowView view in set.Tables[0].DefaultView)
{
this.listBox1.Items.Add(view["ID"].ToString() + "   " + view["name"].ToString());
}
this.listBox1.SelectedIndex = 0;
}

private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
string value = this.listBox1.SelectedItem.ToString();
this.textBox1.Text = value;
}
}
}