How can I serialize `Encoding` properties

I have a class that contains a System.Text.Encoding property

public class ClassWithEncodingProperty
{
    public Encoding Encoding { get; set; }

    public ClassWithEncodingProperty()
    {
        this.Encoding = Encoding.Default;
    }
}

And a test to serialize this class:

public class ClassWithEncodingPropertySpec
{
    [Fact]
    public void TestSerialize()
    {
        var c = new ClassWithEncodingProperty();

        var serializerContainer = new ConfigurationContainer()
            .ConfigureType<ClassWithEncodingProperty>();

        var serializer = serializerContainer.Create();

        var stream = new MemoryStream();

        using (var writer = XmlWriter.Create(stream))
        {
            serializer.Serialize(writer, c);
            writer.Flush();
        }

        stream.Seek(0, SeekOrigin.Begin);
        string contents = new StreamReader(stream).ReadToEnd();
    }
}

An exception is thrown when I try to serialize this class:

Message: System.InvalidOperationException : The serializer for type 'System.Text.SBCSCodePageEncoding' could not be found.  Please ensure that the type is a valid type can be activated. The default behavior requires an empty public constructor on the (non-abstract) class to activate.

Since ‘System.Text.SBCSCodePageEncoding’ is internal I can’t create a, IExtendedXmlCustomSerializer directly, so I did the next best thing I could come up with and use System.Text.Encoding, which is the superclass of SBCSCodePageEncoding.

public class EncodingSerializer : IExtendedXmlCustomSerializer<Encoding>
{
    public Encoding Deserialize(XElement xElement)
    {
        return Encoding.UTF8; // Needs to be replace with real deserialization once the error is gone.
    }

    public void Serializer(XmlWriter xmlWriter, Encoding obj)
    {
        xmlWriter.WriteString("Replace this with real encoding"); // Needs to be replaced with real serialization once the error is gone.
    }
}

And I registered the custom serializer in the ConfigurationContainer:

public class ClassWithEncodingPropertySpec
{
    [Fact]
    public void TestSerialize()
    {
        var c = new ClassWithEncodingProperty();

        var serializerContainer = new ConfigurationContainer()
            .ConfigureType<Encoding>()
                .CustomSerializer(new EncodingSerializer())
            .ConfigureType<ClassWithEncodingProperty>();

            // Omitted for brevity
    }
}

But this still throws the same error.

So how can I serialize this internal subclass.

[johanvergeer]

I have not been able to reproduce it either. Very weird, I did restart my computer, though.

[Mike-E-angelo]

This has been deployed to Nuget: https://www.nuget.org/packages/ExtendedXmlSerializer/

If you run into any additional problems please feel free to open a new issue.

Closing for now.