gistfile1.cs

    public class A : IXmlSerializable
    {
        public XmlSchema GetSchema()
        {
            throw new NotImplementedException();
        }

        public void ReadXml(XmlReader reader)
        {
            throw new NotImplementedException();
        }

        public void WriteXml(XmlWriter writer)
        {
            throw new NotImplementedException();
        }
    }

    class B : A
    {
        [XmlElement]
        public string Name { get; set; }
    }