序列化xml产生错误的格式

Question

我正在将对象列表序列化为xml。我得到了很大的帮助link

经过一些自定义后，我得到了这段代码

     private void button1_Click(object sender, EventArgs e)
        {
             PersonalList personen = new PersonalList(); 
            // normal person
            Person normPerson = new Person();
            normPerson.Location = "Pune";
            normPerson.ChangeFrequency = "weekly";
            normPerson.LastModifiedDate = "2014-07-12";
            personen.AddPerson(normPerson);
            Type[] personTypes = { typeof(Person)};
            XmlSerializer serializer = new XmlSerializer(typeof(PersonalList), personTypes); 
            FileStream fs = new FileStream("myxml.xml", FileMode.Create); 
            serializer.Serialize(fs, personen); 
            fs.Close(); 
            personen = null;

            // Deserialize 

        }
    }

[XmlRoot("urlset")]
[XmlInclude(typeof(Person))] // include type class Person
public class PersonalList
{
    [XmlArray("url")]
    [XmlArrayItem("url")]
    public List<Person> Persons = new List<Person>();

    public void AddPerson(Person person)
    {
        Persons.Add(person);
    }
}

[XmlType("Person")] // define Type
public class Person
{

    [XmlElement("loc")]
    public string Location { get; set; }


    [XmlElement("changefreq")]
    public string ChangeFrequency { get; set; }

    [XmlElement("lastmod")]
    public string LastModifiedDate { get; set; }


}

这是以

生成结果

<urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<url>
<url>
<loc>Pune</loc>
<changefreq>weekly</changefreq>
<lastmod>2014-07-12</lastmod>
</url>
</url>
</urlset>

但我想要的结果是

<urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <url>
    <loc>Pune</loc>
    <changefreq>weekly</changefreq>
    <lastmod>2014-07-12</lastmod>
    </url>

    </urlset>

我不想要ArrayList的额外元素。

此外，我需要在root元素处拥有它，即我为root元素定义的命名空间。

<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd">

任何帮助？