The method returns an array of UUIDs that I can
use find my objects again to re-expand them ([self expandItem]). I
run this
just before closing my window, but you could trigger it at other
places
(even that notification).
I could do it on the window close, but in this project, the document
is autosaved instantly. I think the overhead incurred by writing the
expanded value to a database has got to be very small, but I won't
know until it's actually done.
The one minor gotcha I discovered is this: If you start with a
fully-collapsed list and try to re-expand, you must expand parents
before
children or it won't work. If you re-expand in the same order as
the array
above, it will work.
Right. After the list is loaded I can start from the top row and
iterate through them (row by row from top to bottom) and expand each
parent as needed. That'll work, though I'm most worried about the
visual implications. It hopefully won't have any, but I'm not yet
positive about that.
Thanks for the suggestions,
--
Seth Willits
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