Localization of data property values based on external tables

Hi Michel,
I should say that XAF does not support this functionality internally, and in my opinion, this task is not specifically related to the XPO library. On a side note, I would prefer to have a separate table (a persistent class) for localized strings, and reference properties to this class for all localizable string properties in my project. For example:

C#
[DefaultProperty("Value")]  
public class LocalizableString : XPObject {  
    public LocalizableString(Session s) : base(s) { }  
    [Association("LocalizedStrings")]  
    public XPCollection<StringLocalization> Values {  
        get { return GetCollection<StringLocalization>("Values"); }  
    }  
    [PersistentAlias("iif(Values[Culture=CurrentUICulture()], Values[Culture=CurrentUICulture()].Max(Value), Values[IsNullOrEmpty(Culture)].Max(Value))")]  
    public string Value {  
        get {  
            return Convert.ToString(EvaluateAlias("Value"));  
        }  
    }  
}  
public class StringLocalization : XPObject {  
    public StringLocalization(Session s) : base(s) { }  
    public string Value;  
    [Indexed("Item", Unique = true)]  
    public string Culture;  
    [Association("LocalizedStrings")]  
    public LocalizableString Item;  
}  
[NavigationItem]  
public class Class1 : XPObject {  
    public Class1(Session s) : base(s) { }  
    public LocalizableString PropertyA;  
    public LocalizableString PropertyB;  
    public LocalizableString PropertyC;  
}  

// Register this function by calling the CriteriaOperator.RegisterCustomFunction method  
public class CurrentUICultureFinction : ICustomFunctionOperatorFormattable {  
    public string Format(Type providerType, params string[] operands) {  
        return string.Concat("'", System.Globalization.CultureInfo.CurrentUICulture.Name, "'");  
    }  
    public object Evaluate(params object[] operands) {  
        return System.Globalization.CultureInfo.CurrentUICulture.Name;  
    }  
    public string Name { get { return "CurrentUICulture"; } }  
    public Type ResultType(params Type[] operands) { return typeof(string); }  
}