protected override void OnSetItem(PivotItem pivot, MobileSrc.Commuter.Shared.CommuteDefinition item)
        {
            CommuteOverviewControl ctrl = pivot.Content as CommuteOverviewControl;

            if (null != ctrl)
            {
                ctrl.Source = item;
            }
        }
        public static void OnSourceChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            CommuteOverviewControl ctrl = (CommuteOverviewControl)d;

            ctrl.OnSourceChanged(e.OldValue, e.NewValue);
        }