XML序列化+命名空间(C#)

use*_*657 5 c# xml serialization namespaces

我需要生成这样的东西:

<AmazonEnvelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="amzn-envelope.xsd">
<Header>
...
</Header>
</AmazonEnvelope>
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我正在尝试这样的东西,但它并不完全正确:

XmlSerializerNamespaces nms = new XmlSerializerNamespaces();
        nms.Add("xsi", "http://www.w3.org/2001/XMLSchema-instance");
        nms.Add("noNamespaceSchemaLocation", "amzn-envelope.xsd");



        XmlSerializer serializer = new XmlSerializer(typeof(XMLAmazonEnvelope));
        StreamWriter writer = new StreamWriter(path);

        serializer.Serialize(writer, objectToSave,nms);
        writer.Close();
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结果是:

<?xml version="1.0" encoding="utf-8"?>
<xsi:AmazonEnvelope xmlns:noNamespaceSchemaLocation="amzn-envelope.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<xsi:Header>
...
</xsi:Header>
</xsi:AmazonEnvelope>
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这不是我想要的.任何想法,应该采取哪些不同的做法?