XML序列化 - 阵列禁止渲染根元素

问题描述

我可以以某种方式禁用集合根元素的渲染？

Can I somehow disable rendering of root element of collection?

本类序列化属性：

[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>

我不希望＆LT;变形例＆GT; 元素在这里。我必须做什么？

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

此外，我不需要根元素XSI和XSD命名空间...

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

推荐答案

要禁止收集的根元素的渲染，则必须更换属性 [XmlArrayItem] 与 [的XmlElement] 在code。

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

有关删除 XSI 和 XSD 命名空间，创建一个 XmlSerializerNamespaces 实例与空的空间，并通过它时，你需要序列化对象。

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.

就以这个例子来看看：

[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

我得到这样的输出：

I got this output:

<?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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