private void ItemOnItemPositionChanged(object sender, SummaryItemEventArgs e)
{
SummaryContent.ReorderItems();
UpdateNumbers();
UpdatePositionButtons();
UpdateControlsInList((Control)e.SummaryItem);
RaiseDataChanged();
}
private void ItemOnItemDeleted(object sender, SummaryItemEventArgs e)
{
SummaryContent.DeleteItem(e.SummaryItem.Data);
_inputControls.Remove(e.SummaryItem);
SummaryContent.ReorderItems();
UpdateControlsInList(OrderedItems.OfType <Control>().FirstOrDefault());
UpdateNumbers();
UpdatePositionButtons();
UpdateTotals();
RaiseDataChanged();
}