private void OnElementItemDragCompleted(object sender, ElementItemDragCompletedEventArgs e)
{
e.Handled = true;
RaiseEvent(new ElementItemDragCompletedEventArgs(ElementItemDragCompletedEvent, e.OriginalSource));
}
// This method raises the DragStart event
void RaiseDragCompletedEvent(ElementItem elementItem)
{
ElementItemDragCompletedEventArgs newEventArgs = new ElementItemDragCompletedEventArgs(ElementItem.DragCompletedEvent, elementItem);
RaiseEvent(newEventArgs);
}