OnElementPropertyChanged not getting called ?

Hi

I'm currently working on some extended Forms controls. I use bindable properties, but somehow the "OnElementPropertyChanged" wont get triggered with my "custom" properties. I just cant seem to figure out if I'm doing anything wrong or ?

I have this forms class called "FormEntry". When using it from code, I create it like this :

    FormEntry fe = new FormEntry () {
            Triggers = {

                new EventTrigger () { Event = "MyEvent", Actions = { new EntryValidation () } }
            }
    };

The code for the for the trigger action class getting called is this :

    public class EntryValidation : TriggerAction<FormEntry>
    {
            protected override void Invoke (FormEntry sender)
            {
                Debug.WriteLine ("3 - EntryValidation called");

                if (sender.Text.Length > 5)
                {
                    sender.Validated = true;
                } else
                {
                    sender.Validated = false;
                }
            }
    }

In my FormEntry class code, I have the "Validated" property defined as follows :

    public static readonly BindableProperty ValidatedProperty = BindableProperty.Create("Validated", typeof(bool), typeof(FormEntry), false, BindingMode.TwoWay);

    public bool Validated {
        get {
            return (bool)base.GetValue(FormEntry.ValidatedProperty);
        }
        set { 
            Debug.WriteLine ("4 - FormEntry : Validated setter called!");
            base.SetValue(FormEntry.ValidatedProperty, value);

        }
    }

When I run the code, I can debug and the above setter IS called as a result from setting the value in the "trigger action class", but unfortunately the "OnElementPropertyChanged" in the renderer class is NOT getting triggered:

    protected override void OnElementPropertyChanged (object sender, System.ComponentModel.PropertyChangedEventArgs e)
    {
        base.OnElementPropertyChanged (sender, e);

        Console.WriteLine ("OnElementPropertyChanged called");
        SetProperties (sender);
    }

Am I missing something here? I've read that the notification should be implemented automatically, when i define my bindings as I do.

If someone please could help me figure out what I'm doing wrong, I would really appreciate it. Let me know if you need more info and I will supply that info.

Thanks in advance,
Kent Fonager