XML 序列化在 Web API 中无法按预期工作 ASP.NET

我们有一个Web API，它对所有模型使用基类。下面是结构

基抽象类

[DataContract(Namespace = "")]
public abstract class Criteria
{
    protected Criteria()
    {
        Offset = 0;
        Limit = 250;
    }
    [DataMember(Name = "offset", Order = 97, EmitDefaultValue = false)]
    [JsonProperty(DefaultValueHandling = DefaultValueHandling.Ignore)]
    public int? Offset { get; set; }
    [DataMember(Name = "limit", Order = 98, EmitDefaultValue = false)]
    [JsonProperty(DefaultValueHandling = DefaultValueHandling.Ignore)]
    public int? Limit { get; set; }
}

这实现了基抽象类

[DataContract(Name = "insightCriteria", Namespace = "")]
public class InsightCriteria : Criteria
{
    [DataMember(Name = "geography", Order = 95, EmitDefaultValue = false)]
    [JsonProperty(DefaultValueHandling = DefaultValueHandling.Ignore)]
    [JsonConverter(typeof(StringEnumConverter))]
    public InsightGeography Geography { get; set; }
}

进一步实现上述类的实际模型

[DataContract(Name = "jobReportCriteria", Namespace = "")]
public class JobReportCriteria : InsightCriteria
{
    [DataMember(Name = "groupBy", Order = 1, EmitDefaultValue = false)]
    [JsonProperty(DefaultValueHandling = DefaultValueHandling.Ignore)]
    [JsonConverter(typeof(StringEnumConverter))]
    public JobReportGroupings GroupBy { get; set; }
    [DataMember(Name = "timePeriod", Order = 2, EmitDefaultValue = false)]
    [JsonProperty(DefaultValueHandling = DefaultValueHandling.Ignore)]
    public TimePeriod TimePeriod { get; set; }
    [DataMember(Name = "queryString", Order = 3, EmitDefaultValue = false)]
    [JsonProperty(DefaultValueHandling = DefaultValueHandling.Ignore)]
    public string QueryString { get; set; }
    [DataMember(Name = "includeTotalClassifiedPostings", Order = 4, EmitDefaultValue = false)]
    [JsonProperty(DefaultValueHandling = DefaultValueHandling.Ignore)]
    public bool IncludeTotalClassifiedPostings { get; set; }
    [DataMember(Name = "includeTotalUnclassifiedPostings", Order = 5, EmitDefaultValue = false)]
    [JsonProperty(DefaultValueHandling = DefaultValueHandling.Ignore)]
    public bool IncludeTotalUnclassifiedPostings { get; set; }
}

问题

现在的问题是，当使用 json 序列化时一切正常，我在抽象类中接收偏移量和限制值。但是，在使用 XML 序列化时，不会填充偏移量和限制。

以下是我通过 Rest 客户端传递给 api 的请求

<jobReportCriteria>
  <groupBy>State</groupBy>
  <timePeriod>
    <from>2014-02-06T00:00:00</from>
    <to>2014-05-06T00:00:00</to>
  </timePeriod>
  <queryString>[nationwide]: &quot; nationwide &quot;</queryString>
  <includeTotalClassifiedPostings>true</includeTotalClassifiedPostings>
  <includeTotalUnclassifiedPostings>true</includeTotalUnclassifiedPostings>
  <includeLastDataDate>true</includeLastDataDate>
  <offset>0</offset>
  <limit>25</limit>
</jobReportCriteria>

奇怪的行为

如果我更改了元素的顺序，则会填充偏移量和限制。 下面是正确序列化的请求

<jobReportCriteria>
  <offset>0</offset>
  <limit>25</limit>
  <groupBy>State</groupBy>
  <timePeriod>
    <from>2014-02-06T00:00:00</from>
    <to>2014-05-06T00:00:00</to>
  </timePeriod>
  <queryString>[nationwide]: &quot; nationwide &quot;</queryString>
  <includeTotalClassifiedPostings>true</includeTotalClassifiedPostings>
  <includeTotalUnclassifiedPostings>true</includeTotalUnclassifiedPostings>
  <includeLastDataDate>true</includeLastDataDate>
</jobReportCriteria>

在开始时放置偏移量和限制会以某种方式启用序列化。问题是我不能要求客户端按特定顺序构建请求。

有人可以让我知道这里到底发生了什么吗？

更新：

经过进一步分析，我开始知道数据成员的顺序会影响序列化，但我仍然认为我已经相应地对我的成员进行了排序，并为偏移量和极限值提供了最大顺序，以便它始终低于其他参数。 但它仍然为空