WCF DataContract DataMember 命令? [英] WCF DataContract DataMember order?

问题描述

是从按字母顺序创建的 DataContract 创建的 xml.我有一个 DataContract 类定义为:

Is the xml that is created from your DataContract created in alphabetical order. I have a DataContract class defined as:

[DataContract(Name = "User", Namespace = "")]
public class User
{
    [DataMember]
    public string FirstName { get; set; }
    [DataMember]
    public string LastName { get; set; }
    [DataMember]
    public string Email { get; set; }
    [DataMember]
    public string Password { get; set; }

}

当我进行以下 POST 时:

When I did the following POST:

<User>
   <FirstName>abc</FirstName>
   <LastName>123</LastName>
   <Email>[e-mail]</Email>
   <Password>pass</Password>
</User>

当我在发布后执行 GET 并将结果作为 JSON 返回时，电子邮件为空，但如果我将 xml 发布为:

When I did a GET after my post and returned the result as JSON, email was null, but if I POST my xml as:

 <User>
   <Email>[e-mail]</Email>
   <FirstName>abc</FirstName>
   <LastName>123</LastName>
   <Password>pass</Password>
 </User>

当我执行 GET 并将其作为 JSON 返回时，电子邮件不再为空.为什么要这样做?

Email is no longer null when I do a GET and return it as JSON. Why is it doing this?

推荐答案

用 DataMemberAttribute 类中的 Order 参数装饰它:

decorate it with the Order Parameter in the DataMemberAttribute class:

[DataMember(Order = index)]

序列化器中的反射器按字母顺序放置.除非像这样装饰:

The reflector in the serializer puts it alphabetically. Unless when decorated like this:

[DataMember(Order = 0)]
public string FirstName { get; set; }
[DataMember(Order = 1)]
public string LastName { get; set; }
[DataMember(Order = 2)]
public string Email { get; set; }
[DataMember(Order = 3)]
public string Password { get; set; }

在这里阅读更多...

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