void moveDownCommand_Execute(object parameter)
{
var highlighted = StreamedItems.Where(si => si.IsHighlighted).ToList();
StreamedItems.ToList().ForEach(h => h.IsHighlighted = false);
int index;
for (var i = highlighted.Count - 1; i >= 0; i--)
{
index = StreamedItems.IndexOf(highlighted[i]);
StreamedItems.Move(index, ++index);
}
highlighted.ForEach(h => h.IsHighlighted = true);
}
void moveUpCommand_Execute(object parameter)
{
var highlighted = StreamedItems.Where(si => si.IsHighlighted).ToList();
StreamedItems.ToList().ForEach(h => h.IsHighlighted = false);
int index;
foreach (var moveUpItem in highlighted)
{
index = StreamedItems.IndexOf(moveUpItem);
StreamedItems.Move(index, --index);
}
highlighted.ForEach(h => h.IsHighlighted = true);
}