c# - 使用 C# 序列化时自定义显示元素的顺序

Question

我有一个类在 C# 项目类中定义如下元素

public class Item
{       

    public string ShortDesc {get;set;}

    [XmlArrayItem(ElementName="category")]
    public List<string> categories = new List<string>();
    public string SubType{get;set;}
}

在我后面的代码中有这段代码

Item() itm = new Item();
itm.SubType = "Applications";
itm.categories.Add("Category1");
itm.categories.Add("Category2");
itm.categories.Add("Category3");
itm.ShortDesc="Short Description";

当我序列化对象时，我得到了这个 XML 输出

XML:

<subtype>Applications</subtype>
<shortDesc>Short Description</shortDesc>
<categories>
      <category>Category1</category>
      <category>Category2</category>
      <category>Category3</category>
</categories>

但我希望输出按此顺序

<subtype>Applications</subtype>
<categories>
      <category>Category1</category>
      <category>Category2</category>
      <category>Category3</category>
</categories>
<shortDesc>Short Description</shortDesc>

如何以这种方式显示我尝试使用 Order= 但它只需要 XMLELElement

Answer 1

public class Item
{
    [XmlElement("shortDesc", Order=2)]
    public string ShortDesc { get; set; }

    private readonly List<string> categories = new List<string>();
    [XmlArray("categories", Order = 3), XmlArrayItem("category")]
    public List<string> Categories { get { return categories; } }

    [XmlElement("sub-type", Order = 1)]
    public string SubType { get; set; }
}

请注意显式 [XmlArray]，它允许我们指定 Order=。我还为您将该列表移到了一个属性中(这是常态)。