如何用root反序列化Xml而不是多個相同類型的子元素

Question

我正在嘗試反序列化看起來像這樣的xml文檔

<invoices>
  <invoice>2848</invoice>
  <invoice>2849</invoice>
  <invoice>2850</invoice>
  <invoice>2851</invoice>
  <invoice>2852</invoice>
</invoices>

進入C＃對象，但是我無法使其正常工作。 我正在使用DataContractSerializer

這是我的班級樣子：

[DataContract(Name = "invoices", Namespace = "")]
public class Invoices
{
    [DataMember(Name = "invoice")]
    public Invoice[] InvoiceIds { get; set; }
}

[DataContract(Name = "invoice", Namespace = "")]
public class Invoice
{
    [DataMember(Name = "invoice")]
    public string Id { get; set; }
}

當然這是行不通的。 我收到此錯誤：

{"Error in line 1 position 24. Expecting state 'Element'.. Encountered 'Text'  with name '', namespace ''. "}

我不受Xml的控制。

Answer 1

在這種情況下，請嘗試使用[CollectionDataContract] ：

public class StackOverflow_10705733
{
    [CollectionDataContract(Name = "invoices", ItemName = "invoice", Namespace = "")]
    public class Invoices : List<int>
    {
        [DataMember(Name = "invoice")]
        public int[] InvoiceIds { get; set; }
    }
    public static void Test()
    {
        DataContractSerializer dcs = new DataContractSerializer(typeof(Invoices));
        string xml = @"<invoices>
                          <invoice>2848</invoice>
                          <invoice>2849</invoice>
                          <invoice>2850</invoice>
                          <invoice>2851</invoice>
                          <invoice>2852</invoice>
                        </invoices>";
        MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(xml));
        Invoices value = dcs.ReadObject(ms) as Invoices;
        Console.WriteLine(string.Join(",", value));
    }
}