xml反序列化包含c＃中的对象列表的对象列表

Question

I'm trying to deserialize a list of objects that in turn contain lists of other object. What I've got is the following. The actual deserializing is done by the framework in a ApiContoller httpPost request. The endpoint looks like this:

    [HttpPost]
    public async Task<HttpResponseMessage> MethodCall([FromBody] XmlEntries entries)
    { 
     .... 
    }

The XmlEntries class looks like this:

[XmlRoot("Root")]
public class XmlEntries
{
    [XmlArrayItem("XmlEntry")]
    public List<XmlEntry> XmlEntries{ get; set; }

    public XmlEntries()
    {
        XmlEntries = new List<XmlEntry>();
    }

    public XmlEntries(IEnumerable<XmlEntry> entries)
    {
        XmlEntries= entries.ToList();
    }
}

The XmlEntry class look like this:

public class XmlEntry
{
    [XmlArrayItem("XmlSubEntry")]
    public List<XmlSubEntry> XmlSubEntries{ get; set; }
}

and the XmlSubEntry looks like this.

public class XmlSubEntry
{
    string AttributeOne{ get; set; }
    int? AttributeTwo{ get; set; }
}

I've been using fiddler to send the following XML

<?xml version="1.0" encoding="utf-8"?>
<Root xmlns:xsd="http://www.w3.org/2001/XMLSchema"        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <XmlEntries>
    <XmlEntry>
      <XmlSubEntries>
        <XmlSubEntry>
          <AttributeOne>P</AttributeOne>
          <AttributeTwo>8</AttributeTwo>
        </XmlSubEntry>
        <XmlSubEntry>
          <AttributeOne>S</AttributeOne>
          <AttributeTwo>26</AttributeTwo>
        </XmlSubEntry>
      </XmlSubEntries>
    </XmlEntry>
  </XmlEntries>
</Root>

My problem is that the attributes of XmlSubEntry never gets correctly serialized. When i debug the MethodCall in apiController entries will be a list containing 1 XmlEntry with XmlSubEntries being a list of 2 XmlSubEntry, but the attributes (AttributeOne and AttributeTwo) are always null.

I have tried annotating the classes In all ways I can thing of but I still won't get the attributes to serialize correctry.

Is there any XML-ninjas around that can help me figure out what I'm doing wrong?

Answer 1

The best tip I can give you is to do this in reverse - add some data and serialise it to XML, see what it looks like. That will usually point to where you're wrong.

In this case, however, you're very close. The only issue you have is that you can't serialise private properties, so make them public:

public class XmlSubEntry
{
    public string AttributeOne { get; set; }
    public int? AttributeTwo { get; set; }
}