使用XDocument序列化时更改根元素的名称

Question

I try to change the root name when serializing to XDocument.

I try to serialize a(n inner) class and get the root name Test.MyClass .
I try to change it with XmlRoot attribute but nothing happens. What is the trick to change the root name? or am I using XDocument for something it cannot do?

[TestClass]
public class MyTestClass
{
    [TestMethod]
    public void TestMethod()
    {
        var res = Serialise(new MyClass());
    }

    private static XDocument Serialise(object objectToSerialize)
    {
        var doc = new XDocument();
        using (var writer = doc.CreateWriter())
        {
            var serializer = new DataContractSerializer(objectToSerialize.GetType());
            serializer.WriteObject(writer, objectToSerialize);
        }
        return doc;
    }

    [XmlRoot("NewName")]
    public class MyClass { }
}

I get

<MyTestClass.MyClass/>

but I want

<NewName/>

Answer 1

As noted in the documentation you need to use the DataContract or Serializable attribute on the class you're going to use DataContractSerializer on. The XmlRoot attribute is for use with the XmlSerializer , as noted by @ jdweng in their comment .