ThemeModelBase.cs

using System;
using System.Xml.Serialization;
using System.Collections.Generic;


public class ThemeModelBase {
    string _name;
    string _title;
    [XmlAttribute]
    public string Name {
        get {
            if(_name == null)
                return "";
            return _name;
        }
        set { _name = value; }
    }
    [XmlAttribute]
    public string Title {
        get {
            if(_title == null)
                return "";
            return _title;
        }
        set { _title = value; }
    }
}