private TestModel()
 {
     count   = new ObservableData <int>();
     testInt = new ObservableData <TestInt>();
     intList = new ObservableListData <int>();
 }
    public void AddBind <T>(ObservableData <T> observableData, Action <T> listener, DataListenerType listenerType)
    {
        DataActionListener <T> DataListener = new DataActionListener <T>(listener, listenerType, this, true);

        bindItemList.Add(new BindItem(observableData, DataListener));
    }