Now I feel stupid.
For efficiency, my code was caching the values for the second column,
but I never cleared that cache before trying to refresh that column.
The browser was refreshing the (now incorrect) cached values - clearing
my cache out so that it was rebuilt fixed my issue.
Sorry for any confusion!
On 3/7/2015 12:39, Frank D. Engel, Jr. wrote:
I have an NSBrowser class which has at most two columns; it is
populated from a core data store.
If I delete an object from the core data store that is from the first
column of the browser, I can send loadColumnZero to the browser
object, and it correctly refreshes the column and deselects everything.
I cannot, however, find a programmatic way to correctly refresh the
second column (column number 1) when I delete something from there.
If I try loadColumnZero, then reselect the item in the first column,
the second column shows a blank entry in the second column where the
old object was.
If I select a different item in the first column, then reselect the
one that would show the deleted item, then it refreshes correctly; but
if I programmatically do this within the method that performs the
delete, it ends up showing the same thing as if I hadn't done the reload.
I have tried reloadColumn:1, reloadDataForRowIndexes..., and numerous
combinations of these and other method calls, and no matter what I try
I can't seem to get it to just refresh the column.
The only thing that comes close to doing what I want is to have it
select a different item in the first column (selectRow:0 inColumn:0),
which leaves it on the "wrong" item in the first column - when I then
manually select the desired column, it does correctly reload.
What am I missing - how can I get it to just do the sensible thing and
refresh the data in the second column?
This is getting frustrating, and I'm sure I must be missing something
simple...?????
I'm on OS X 10.9.5 if that makes a difference.
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