如何在C#3.5中对大型XML文件进行流式读取

using System;
using System.IO;
using System.Xml;

public class XmlStreamReader
{
    public static void ReadXmlStream(string filePath)
    {
        using (FileStream fs = new FileStream(filePath, FileMode.Open))
        {
            XmlReaderSettings settings = new XmlReaderSettings();
            settings.IgnoreWhitespace = true;
            settings.IgnoreComments = true;

            using (XmlReader reader = XmlReader.Create(fs, settings))
            {
                while (reader.Read())
                {
                    switch (reader.NodeType)
                    {
                        case XmlNodeType.Element:
                            Console.WriteLine("Element: " + reader.Name);
                            break;
                        case XmlNodeType.Text:
                            Console.WriteLine("Text: " + reader.Value);
                            break;
                        case XmlNodeType.EndElement:
                            Console.WriteLine("End Element: " + reader.Name);
                            break;
                    }
                }
            }
        }
    }
}