如何将枚举值序列化为int？ [英] How do I serialize an enum value as an int?

问题描述

这是我的（示例）类和枚举：

我想将序列化为枚举值作为int >

  public class Request {
 public RequestType request; 
} 
 
 public enum RequestType 
 {
 Booking = 1，
确认= 2，
 PreBooking = 4，
 PreBookingConfirmation = 5，
 BookingStatus = 6 
} 
  

而代码确保我没有做错了）

 请求req = new Request（）; 
 req.request = RequestType.Confirmation; 
 XmlSerializer xml = new XmlSerializer（req.GetType（））; 
 StringWriter writer = new StringWriter（）; 
 xml.Serialize（writer，req）; 
 textBox1.Text = writer.ToString（）; 
  

这个答案（到另一个问题）似乎表明枚举应该序列化为int作为默认值，但它似乎没有这样做。这是我的输出：

 <？xml version =1.0encoding =utf-16？> 
<请求xmlns：xsi =http://www.w3.org/2001/XMLSchema-instancexmlns：xsd =http://www.w3.org/2001/XMLSchema> 
< request>确认< / request> 
< / Request> 
  

我已经能够通过放置[XmlEnum（X）] 属性在每个值，但这只是似乎错误。

解决方案

大多数时候，人们想要名字，而不是int。您可以为此目的添加一个垫片属性？

  [XmlIgnore] 
 public MyEnum Foo {get; set;} 
 
 [XmlElement（Foo）] 
 [EditorBrowsable（EditorBrowsableState.Never），Browsable（false）] 
 public int FooInt32 {
 get {return ）Foo;} 
 set {Foo =（MyEnum）value;} 
} 
  

或者你可以使用 IXmlSerializable ，但这是很多工作。

I want to serialize my enum-value as an int, but i only get the name.

Here is my (sample) class and enum:

public class Request {
    public RequestType request;
}

public enum RequestType
{
    Booking = 1,
    Confirmation = 2,
    PreBooking = 4,
    PreBookingConfirmation = 5,
    BookingStatus = 6
}

And the code (just to be sure i'm not doing it wrong)

Request req = new Request();
req.request = RequestType.Confirmation;
XmlSerializer xml = new XmlSerializer(req.GetType());
StringWriter writer = new StringWriter();
xml.Serialize(writer, req);
textBox1.Text = writer.ToString();

This answer (to another question) seems to indicate that enums should serialize to ints as default, but it doesn't seem to do that. Here is my output:

<?xml version="1.0" encoding="utf-16"?>
<Request xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <request>Confirmation</request>
</Request>

I have been able to serialize as the value by putting an "[XmlEnum("X")]" attribute on every value, but this just seems wrong.

解决方案

Most of the time, people want names, not ints. You could add a shim property for the purpose?

[XmlIgnore]
public MyEnum Foo {get;set;}

[XmlElement("Foo")]
[EditorBrowsable(EditorBrowsableState.Never), Browsable(false)]
public int FooInt32 {
    get {return (int)Foo;}
    set {Foo = (MyEnum)value;}
}

Or you could use IXmlSerializable, but that is lots of work.

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