How to combine multiple properties into one tag using object serialization override

Three approaches are striking:

1: create a property used for serialization and hide the rest with [XmlIgnore]

2: do it IXmlSerializable

and do it yourself 3: create a separate DTO just for serialization

Here's an example that re-forces the "text" snippet on objects XmlSerializer

to please, while keeping the original open AIP:

[Serializable]
public class SpeedDial
{
    static void Main()
    {
        XmlSerializer ser = new XmlSerializer(typeof(SpeedDial));
        SpeedDial foo = new SpeedDial { Value = "110", TextTR = "Yangin",
            TextEN = "Fire", IconId = "39" };
        ser.Serialize(Console.Out, foo);
    }
    public SpeedDial()
    {
        Text = new SpeedDialText();
    }

    [XmlElement("text"), EditorBrowsable(EditorBrowsableState.Never)]
    public SpeedDialText Text { get; set; }

    public string Value { get; set; }
    [XmlIgnore]
    public string TextTR
    {
        get { return Text.Tr; }
        set { Text.Tr = value; }
    }
    [XmlIgnore]
    public string TextEN
    {
        get { return Text.En; }
        set { Text.En = value; }
    }

    public string IconId { get; set; }
}
[Serializable]
public class SpeedDialText
{
    [XmlElement("EN")]
    public string En { get; set; }
    [XmlElement("TR")]
    public string Tr { get; set; }
}