ServiceStack 'ExcludePropertyReferences' dynamically if decorate with datamember attribute

Question

I want to ignore some properties from my Object during run time. The properties are decorated with data member attribute (Without data member attribute excludepropertyreferencces is working fine). Can you please provide some insight? Thanks

Question : HOW TO EXCLUDE PROPERTIES AT RUN TIME, IF THEY ARE DECORATE WITH DATAMEMBER ATTRIBUTE ? ServiceStack , ExcludePropertyReferences

    var model = new Model {
        FirstName = "First Name",
        LastName = "Last Name",
        Children = new List<ModelChild>{
            new ModelChild { ChildFirstName = "ChildFirstName 1", ChildLastName = "ChildLastName 1" },
            new ModelChild { ChildFirstName = "ChildFirstName 2", ChildLastName = "ChildLastName 2" }
        }
    };

    var model1 = new Model1 {
        FirstName = "First Name",
        LastName = "Last Name",
        Children = new List<Model1Child>{
            new Model1Child { ChildFirstName = "ChildFirstName 1", ChildLastName = "ChildLastName 1" },
            new Model1Child { ChildFirstName = "ChildFirstName 2", ChildLastName = "ChildLastName 2" }
        }
    };

    Console.WriteLine("Properties won't get ignored because the Model is decorated with Serialization Attributes");

    using(MemoryStream stream = new MemoryStream())
    using (var jsConfig = JsConfig.BeginScope()) {
        jsConfig.ExcludeTypeInfo = true;
        jsConfig.ExcludePropertyReferences = new [] { "Model.LastName", "ModelChild.ChildLastName" }.ToArray();
        JsonSerializer.SerializeToStream(model, model.GetType(), stream);
        LINQPad.Extensions.Dump(System.Text.Encoding.Default.GetString(stream.ToArray()));
    }

    Console.WriteLine();
    Console.WriteLine();

    Console.WriteLine("Properties will get ignored because the Model is not decorated with Serialization Attributes");
    using(MemoryStream stream = new MemoryStream())
    using (var jsConfig = JsConfig.BeginScope()) {
        jsConfig.ExcludeTypeInfo = true;
        jsConfig.ExcludePropertyReferences = new [] { "Model1.LastName", "Model1Child.ChildLastName" }.ToArray();
        JsonSerializer.SerializeToStream(model1, model1.GetType(), stream);
        LINQPad.Extensions.Dump(System.Text.Encoding.Default.GetString(stream.ToArray()));

    }




// Define other methods and classes here
[DataContract()]
public class Model {

    [DataMember(Name = "first_name",EmitDefaultValue = false )]   
    public string FirstName { get; set; }
    [DataMember(Name = "last_name")]
    public string LastName { get; set; }
    [DataMember(Name = "collections")]
    public List<ModelChild> Children { get; set; }
}

[DataContract()]
public class ModelChild {
    [DataMember(Name = "child_first_name")]
    public string ChildFirstName { get; set; }
    [DataMember(Name = "child_last_name")]
    public string ChildLastName { get; set; }
}

public class Model1 {
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public List<Model1Child> Children { get; set; }
}

public class Model1Child {
    public string ChildFirstName { get; set; }
    public string ChildLastName { get; set; }
}