public override void OnApplyTemplate()
        {
            base.OnApplyTemplate();

            _availableBehaviors = GetTemplateChild("AvailableBehaviorItemsControl") as AvailableBehaviorItemsControl;

            buildListOfAvailableBehaviors();
        }
        public override void OnApplyTemplate()
        {
            base.OnApplyTemplate();

            _availableBehaviors = GetTemplateChild("AvailableBehaviorItemsControl") as AvailableBehaviorItemsControl;

            buildListOfAvailableBehaviors();  
        }