private void PreviewListBox_PreviewLeftMouseDown(object sender, MouseButtonEventArgs e)
{
if (_dragged != null)
{
return;
}
UIElement element = PreviewCartListBox.InputHitTest(e.GetPosition(PreviewCartListBox)) as UIElement;
while (element != null)
{
var item = element as ListBoxItem;
if (item != null)
{
_dragged = item;
break;
}
element = VisualTreeHelper.GetParent(element) as UIElement;
}
}
private void PreviewCartListBox_Drop(object sender, DragEventArgs e)
{
try
{
if (_dragged != null)
{
var slide = (ManagerImageReference)(_dragged).DataContext;
ListBoxItem dropTo = null;
UIElement element = PreviewCartListBox.InputHitTest(e.GetPosition(PreviewCartListBox)) as UIElement;
while (element != null)
{
var to = element as ListBoxItem;
if (to != null)
{
dropTo = to;
break;
}
element = VisualTreeHelper.GetParent(element) as UIElement;
}
if (dropTo != null)
{
var dropToSlide = (ManagerImageReference)(dropTo).DataContext;
var dropIndex = _context.PreviewCart.Slides.IndexOf(dropToSlide);
var slideIndex = _context.PreviewCart.Slides.IndexOf(slide);
if (slideIndex < dropIndex)
{
dropIndex--;
}
_context.PreviewCart.Slides.Remove(slide);
_context.PreviewCart.Slides.Insert(dropIndex, slide);
}
}
}
catch (Exception)
{
// TODO LOG
}
}
