c# - 从多个类生成 XML

Question

我正在尝试使用 xsd.exe 工具生成的类来生成 XML 文档。

想要的结构是这样的:

 <sh:StandardBusinessDocument xmlns:eanucc="urn:ean.ucc:2" xmlns:order="urn:ean.ucc:order:2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" schemaLocation="http://www.unece.org/cefact/namespaces/StandardBusinessDocumentHeader ../Schemas/sbdh/StandardBusinessDocumentHeader.xsd urn:ean.ucc:2 ../Schemas/OrderProxy.xsd" xmlns:sh="http://www.unece.org/cefact/namespaces/StandardBusinessDocumentHeader">
  <sh:StandardBusinessDocumentHeader>
    <sh:HeaderVersion>2.2</sh:HeaderVersion>    
  </sh:StandardBusinessDocumentHeader>
  <eanucc:message>
    <entityIdentification>
        <uniqueCreatorIdentification>2222</uniqueCreatorIdentification>
    </entityIdentification> 
  </eanucc:message>
</sh:StandardBusinessDocument> 

但我只能做到这一点:

<sh:StandardBusinessDocument xmlns:eanucc="urn:ean.ucc:2" xmlns:order="urn:ean.ucc:order:2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" schemaLocation="http://www.unece.org/cefact/namespaces/StandardBusinessDocumentHeader ../Schemas/sbdh/StandardBusinessDocumentHeader.xsd urn:ean.ucc:2 ../Schemas/OrderProxy.xsd" xmlns:sh="http://www.unece.org/cefact/namespaces/StandardBusinessDocumentHeader">
  <sh:StandardBusinessDocumentHeader>
    <sh:HeaderVersion>2.2</sh:HeaderVersion>    
  </sh:StandardBusinessDocumentHeader>
  <sh:message>
    <entityIdentification>
        <uniqueCreatorIdentification>2222</uniqueCreatorIdentification>
    </entityIdentification> 
  </sh:message>
</sh:StandardBusinessDocument> 

如何为根节点的子节点创建不同的节点前缀？在我生成的类中，我使用 XmlTypeAttribute 和 XmlRootAttribute 添加了命名空间，但第二个子属性将忽略这些命名空间。我的类具有如下属性:

[System.Xml.Serialization.XmlTypeAttribute(Namespace = "http://www.unece.org/cefact/namespaces/StandardBusinessDocumentHeader")]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "http://www.unece.org/cefact/namespaces/StandardBusinessDocumentHeader", IsNullable = true)]
public class StandardBusinessDocument
{
   private StandardBusinessDocumentStandardBusinessDocumentHeader standardBusinessDocumentHeaderField;

   private StandardBusinessDocumentMessage messageField;
} 

[System.Xml.Serialization.XmlTypeAttribute(Namespace = "http://www.unece.org/cefact/namespaces/StandardBusinessDocumentHeader")]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "http://www.unece.org/cefact/namespaces/StandardBusinessDocumentHeader", IsNullable = false)]
public class StandardBusinessDocumentStandardBusinessDocumentHeader : StandardBusinessDocument
{
}

[System.Xml.Serialization.XmlTypeAttribute(Namespace = "urn:ean.ucc:2")]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "urn:ean.ucc:2", IsNullable = true)]
public class StandardBusinessDocumentMessage
{
}

知道为什么第二个 child (StandardBusinessDocumentMessage) 上的装饰被忽略了吗？

Answer 1

首先，在映射中为检索 messageField 的属性指定 namespace (我假设有一个):

[XmlElement(Namespace = "urn:ean.ucc:2")]
public StandardBusinessDocumentMessage Message { get; set; }

然后，在序列化对象时，创建 XmlSerializerNamespaces 类的实例，向其添加前缀和命名空间，并在以 XmlSerializerNamespaces 对象作为参数的 Serialize() 重载中使用它:

  XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
  ns.Add("eanucc", "urn:ean.ucc:2");
  ns.Add("sh", "http://www.unece.org/cefact/namespaces/StandardBusinessDocumentHeader");
  XmlSerializer xs = new XmlSerializer(typeof(StandardBusinessDocument));
  xs.Serialize(someStream, someInstance, ns);