/// <summary>
        /// Occurs when the dropdown of a BreadcrumbItem is closed.
        /// </summary>
        protected virtual void OnBreadcrumbItemDropDownClosed(RoutedEventArgs e)
        {
            BreadcrumbItemEventArgs args = new BreadcrumbItemEventArgs(e.Source as BreadcrumbItem, BreadcrumbItemDropDownClosedEvent);

            RaiseEvent(args);
        }
        /// <summary>
        /// Occurs before acessing the Items property of a BreadcrumbItem. This event can be used to populate the Items on demand.
        /// </summary>
        protected virtual void OnPopulateItems(BreadcrumbItem item)
        {
            BreadcrumbItemEventArgs args = new BreadcrumbItemEventArgs(item, BreadcrumbBar.PopulateItemsEvent);

            RaiseEvent(args);
        }