XML 序列化 - 禁用呈现数组的根元素

问题描述

我可以以某种方式禁用集合根元素的渲染吗?

Can I somehow disable rendering of root element of collection?

这个具有序列化属性的类:

This class with serialization attributes:

[XmlRoot(ElementName="SHOPITEM", Namespace="")]
public class ShopItem
{
    [XmlElement("PRODUCTNAME")]
    public string ProductName { get; set; }

    [XmlArrayItem("VARIANT")]
    public List<ShopItem> Variants { get; set; }
}

生成此 XML:

<SHOPITEM xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
      <PRODUCTNAME>test</PRODUCTNAME>
      <Variants>
          <VARIANT>
              <PRODUCTNAME>hi 1</PRODUCTNAME>
          </VARIANT>
          <VARIANT>
              <PRODUCTNAME>hi 2</PRODUCTNAME>
          </VARIANT>
      </Variants>
</SHOPITEM>

我不想要 元素在这里.我该怎么办?

I don't want <Variants> element here. What must I do?

此外，我不需要根元素中的 xsi 和 xsd 命名空间...

Also I don't need xsi and xsd namespaces in root element...

推荐答案

要禁用集合的根元素的呈现，您必须将属性 [XmlArrayItem] 替换为 [XmlElement] 在您的代码中.

To disable rendering of root element of collection, you must replace the attribute [XmlArrayItem] with [XmlElement] in your code.

要删除 xsi 和 xsd 命名空间，请创建一个带有空命名空间的 XmlSerializerNamespaces 实例，并在需要序列化对象时传递它.

For removing the xsi and xsd namespaces, create an XmlSerializerNamespaces instance with an empty namespace and pass it when you need to serialize your object.

看看这个例子:

[XmlRoot("SHOPITEM")]
public class ShopItem
{
    [XmlElement("PRODUCTNAME")]
    public string ProductName { get; set; }

    [XmlElement("VARIANT")] // was [XmlArrayItem]
    public List<ShopItem> Variants { get; set; }
}

// ...

ShopItem item = new ShopItem()
{
    ProductName = "test",
    Variants    = new List<ShopItem>()
    {
        new ShopItem{ ProductName = "hi 1" },
        new ShopItem{ ProductName = "hi 2" }
    }
};

// This will remove the xsi/xsd namespaces from serialization
XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
ns.Add("", "");

XmlSerializer ser = new XmlSerializer(typeof(ShopItem));
ser.Serialize(Console.Out, item, ns);  // Inform the XmlSerializerNamespaces here

我得到了这个输出:

<?xml version="1.0" encoding="ibm850"?>
<SHOPITEM>
  <PRODUCTNAME>test</PRODUCTNAME>
  <VARIANT>
    <PRODUCTNAME>hi 1</PRODUCTNAME>
  </VARIANT>
  <VARIANT>
    <PRODUCTNAME>hi 2</PRODUCTNAME>
  </VARIANT>
</SHOPITEM>

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