在.NET中序列化对象时是否忽略所有xsi和xsd命名空间?

代码如下所示:

StringBuilder builder = new StringBuilder();
XmlWriterSettings settings = new XmlWriterSettings();
settings.OmitXmlDeclaration = true;
using (XmlWriter xmlWriter = XmlWriter.Create(builder, settings))
{
    XmlSerializer s = new XmlSerializer(objectToSerialize.GetType());
    s.Serialize(xmlWriter, objectToSerialize);
}

生成的序列化文档包括名称空间,如下所示:

<message xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" 
    xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" 
    xmlns="urn:something">
 ...
</message>

要删除xsi和xsd名称空间,我可以按照 How to serialize an object to XML without getting xmlns=”…”? .

我希望我的邮件标签为 <message> (没有任何名称空间属性)。我该怎么做?