子节点未正确序列化

Question

尝试使模型的xml序列化正常工作时遇到问题。

这是我的模特：

 [XmlRoot(ElementName = "Invoice", Namespace = "", IsNullable = false)]
    public class Invoice
    {
        [XmlElement(ElementName = "Items")]
        public virtual List<Item> Items{ get; set; }
    }
[XmlRoot(ElementName = "Item")]
    public class Item
    {
        [XmlAttribute(AttributeName = "Line")]
        public virtual int Line { get; set; }

        [XmlAttribute(AttributeName = "MatNum")]
        public virtual string MatNum { get; set; }
    }

这将导致以下XML错误：

<?xml version="1.0" encoding="utf-16"?>
<Invoice>
  <Items Line="1" MatNum="Beer">
  <Items Line="2" MatNum="Cola">
</Invoice>

结果应如下所示：

<?xml version="1.0" encoding="utf-16"?>
<Invoice>
  <Items>
    <Item Line="1" MatNum="Beer">
    <Item Line="2" MatNum="Cola">
  </Items>
</Invoice>

我在做什么错？看起来XML序列化程序正在忽略子类元素。

Answer 1

好傻的错误，需要更改为XmlArrayItem而不是“ Items”的元素

[XmlRoot(ElementName = "Invoice", Namespace = "", IsNullable = false)]
    public class Invoice
    {
        [XmlArrayItem(ElementName = "Item")]
        public virtual List<Item> Items { get; set; }
    }
[XmlRoot(ElementName = "Item")]
    public class Item
    {
        [XmlAttribute(AttributeName = "Line")]
        public virtual int Line { get; set; }

        [XmlAttribute(AttributeName = "MatNum")]
        public virtual string MatNum { get; set; }
    }