使用C#在XML序列化中允许重复的节点名称

Question

我正在尝试使用C#序列化具有重复节点名称的对象,我需要这样做的原因是因为我正在构建一个使用第三方API的库.

我需要构建的请求看起来像这样.

<DATASET>
   <SITE_ID>123</SITE_ID>
   <DATA type=“name”>Secondary List</DATA>
   <DATA type="extra" id="CLICKTHRU_URL">http://my.domain.com/</DATA>
   <DATA type="extra" id="REPLY_FORWARD_EMAIL">support@my.domain.com</DATA>
   <DATA type="extra" id="REPLY_FROM_EMAIL">forward@my.domain.com</DATA>
   <DATA type="extra" id="REPLY_FROM_NAME">8@yahoo.com</DATA>
   <DATA type="extra" id="REPLY_FORWARD_SUBJECT">Customer Replies</DATA>
   <DATA type="extra" id="HANDLE_UNSUBSCRIBE"></DATA>
   <DATA type="extra" id="HANDLE_AUTOREPLY"></DATA>
   <DATA type="extra" id="FOOTER_TEXT">Confidentiality agreement…</DATA>
   <DATA type="extra" id="FOOTER_HTML"> Confidentiality agreement…</DATA>
</DATASET>

我的方法是创建一个表示请求的类并使用XML序列化属性,该类如下所示:

[XmlRoot("DataSet")]
public class AddListCallHolder : BaseCallHolder
{
    private BaseAttributeHolder _name = new BaseAttributeHolder(type: "");

    [XmlElement("DATA")]
    public BaseAttributeHolder Name
    {
        get { return _name; }
        set { _name = value; }
    }

    private BaseAttributeHolder _clickthruUrl = new BaseAttributeHolder(id: "CLICKTHRU_URL");

    [XmlElement("DATA")]
    public BaseAttributeHolder CLICKTHRU_URL
    {
        get { return _clickthruUrl; }
        set { _clickthruUrl = value; }
    }
}

该属性的基类是:

public class BaseAttributeHolder
{
    [XmlAttribute("type")]
    public string Type { get; set; }

    [XmlAttribute("id")]
    public string Id { get; set; }

    [XmlText]
    public string Value { get; set; }

    public BaseAttributeHolder(string value, string id, string type = "extra")
    {
        Type = type;
        Value = value;
        Id = id;
    }

    public BaseAttributeHolder(string id, string type = "extra")
    {
        Type = type;
        Id = id;
    }

    public BaseAttributeHolder(string type = "extra")
    {
        Type = type;
    }

    public BaseAttributeHolder()
    {

    }
}

当我尝试序列化和对象我收到此错误:

来自命名空间''的XML元素'DATA'已经存在于当前范围中.使用XML属性为元素指定另一个XML名称或命名空间.

是否有任何工作来序列化此对象或获取请求的结构.

Answer 1

使用数组或列表来反序列化所有<DATA>，然后添加对此数组进行操作的属性怎么样？

  [XmlRoot("DataSet")]
  public class AddListCallHolder
  {
      [XmlArrayItem(typeof(BaseAttributeHolder), ElementName = "DATA")]
      public BaseAttributeHolder[] data 
      { 
           get;
           set;
      }

      [XmlIgnore]
      public BaseAttributeHolder Name
      {
          get
          {
             return data.FirstOrDefault(d => d.Type == "name");
          }
      }

      [XmlIgnore]
      public BaseAttributeHolder CLICKTHRU_URL
      {
          get
          {
             return data.FirstOrDefault(d => d.Type == "extra" && d.Id == "CLICKTHRU_URL");
          }
      }
  }

我想你也能想出设置器。