NullProperty Sample

using System.ComponentModel;

namespace XmlSerializersTest.Samples
{
    [Title("Null property")]
    public class NullProperty
    {
        public string NullString { get; set; }

        [DefaultValue(null)]
        public string NullStringWithDefault { get; set; }

        public MyClass CustomClassProperty { get; set; }
    }

    public class MyClass
    {
        public int SomeProperty { get; set; }
    }
}

<NullProperty xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/XmlSerializersTest.Samples">
  <CustomClassProperty i:nil="true" />
  <NullString i:nil="true" />
  <NullStringWithDefault i:nil="true" />
</NullProperty>