Ignore member of base class in YamlDotNet - yamldotnet

Question

I have a class which I want to serialize with YamlDotNet:
public class AwesomeClass : PropertyChangedBase
{
private bool _element1;
private bool _enabled;
public bool Element1
{
get { return _element1; }
set
{
_element1 = value;
NotifyOfPropertyChange(() => Element1);
}
}
public bool Enabled
{
get { return _enabled; }
set
{
_enabled = value;
NotifyOfPropertyChange(() => Enabled);
}
}
}
My problem is, in the base class is an element named: IsNotifying
Is there a way to exclude this element from serialization, without the change of the base class?

Answer 1

You could override the property in the derived class and apply the YamlIgnore attribute there. While the sample below works, I suspect for more complicated class hierarchies you would really need to ensure no behavior changes.
public class AwesomeClass : PropertyChangedBase
{
[YamlIgnore]
public new bool IsNotifying
{
get { return base.IsNotifying; }
set { base.IsNotifying = value; }
}
[YamlIgnore]
public override bool Blah
{
get { return base.Blah; }
set { base.Blah = value; }
}
}
public class PropertyChangedBase
{
public bool IsNotifying
{
get;
set;
}
public virtual bool Blah
{
get;
set;
}
}

Answer 2

I had a similar problem (needed to filter properties of a particular type from classes I couldn't change, so using the attribute was not an option) and is what I came up with:
Create a custom type inspector:
public class MyTypeInspector : TypeInspectorSkeleton
{
private readonly ITypeInspector _innerTypeDescriptor;
public MyTypeInspector(ITypeInspector innerTypeDescriptor)
{
_innerTypeDescriptor = innerTypeDescriptor;
}
public override IEnumerable<IPropertyDescriptor> GetProperties(Type type, object container)
{
var props = _innerTypeDescriptor.GetProperties(type, container);
props = props.Where(p => !(p.Type == typeof(Dictionary<string, object>) && p.Name == "extensions"));
props = props.Where(p => p.Name != "operation-id");
return props;
}
}
Create the serializer as follows:
var builder = new SerializerBuilder();
builder.WithTypeInspector(inspector => new MyTypeInspector(inspector));
var serializer = builder.Build();