custom xml serialization with attributes

Question

Is there any way to get the xml serializer to convert the following:

class Mail
{
    public string Subject = "sub1";
}

into the following XML schema:

<Mail>
    <MailSubject>
        <Subject>sub1</Subject>
    </MailSubject>
</Mail>

That is I want to wrap the xmlElement in a new xmlElement group without using the following sub class:

class Mail
{
    public MailSubject MailSubject = new MailSubject();
}

class MailSubject
{
    public string Subject = "sub1";
}

My xml format comes from a 3rd party and I'm trying to make it so that our objects make sense and are easily usable while still keeping to their xml schema.

Rok · Accepted Answer · 2011-12-14 12:30:34Z

As Buh Buh said, the only way to do this by implementing IXmlSerializable. A possible implementation would look like this:

public class Mail : IXmlSerializable
{
    public string Subject;

    public System.Xml.Schema.XmlSchema GetSchema()
    {
        return null;
    }

    public void ReadXml(System.Xml.XmlReader reader)
    {
        bool isEmpty = reader.IsEmptyElement;

        reader.ReadStartElement();  
        if (isEmpty) return;

        isEmpty = reader.IsEmptyElement;
        reader.ReadStartElement();
        if (isEmpty)
        {
            reader.ReadEndElement();
            return;
        }

        Subject = reader.ReadString();

        reader.ReadEndElement();
        reader.ReadEndElement();
    }

    public void WriteXml(System.Xml.XmlWriter writer)
    {
        writer.WriteStartElement("MailSubject");
        writer.WriteElementString("Subject", Subject);
        writer.WriteEndElement();
    }
}

Buh Buh · Accepted Answer · 2011-12-14 11:45:31Z

0

If you make Mail implement IXmlSerializable, then you can have any xml you like. But this might just create more work than you really want to do.

answered Dec 14, 2011 at 11:45

Buh Buh

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