Using JSON.net, how do I prevent serializing properties of a derived class, when used in a base class context?

Question

Given a data model:

[DataContract]
public class Parent
{
    [DataMember]
    public IEnumerable Children { get; set; }
}

[DataContract]
publ         


        

Answer 1

I had the exact same problem and looked up how to build the ContractResolver I was actually looking for and that better answer this question. This only serializes the Properties of the Type T you actually want to serialize, but with this example you can also easily build similar approaches:

public class TypeOnlyContractResolver : DefaultContractResolver
{
    protected override JsonProperty CreateProperty(MemberInfo member, MemberSerialization memberSerialization)
    {
        JsonProperty property = base.CreateProperty(member, memberSerialization);
        property.ShouldSerialize = instance => property.DeclaringType == typeof (T);
        return property;
    }
}