Re: Force NSOpenPanel's -panel:shouldShowFilename: to get called again?

FROM : John Stiles
DATE : Sat Jan 19 00:18:30 2008

Jeez, and there it was staring me in the face the whole time.
Honestly, I am only going to call it in response to user input, so I
expect it will be good enough. Thank you so much for the pointer.
(I'll post again if it doesn't actually work ;)  )

Corbin Dunn wrote:
> On Jan 17, 2008, at 4:43 PM, John Stiles wrote:
>

>> In an NSOpenPanel, I want to force the open panel to re-check the
>> "-panel:shouldShowFilename:" status on all the visible files. (In my
>> accessory view, you can change options about what you want to open,
>> and I want the open panel to honor any changes immediately.)
>>
>> I've done some Googling and some people have said that calling
>> "[window update]" would cause this to happen, but it doesn't seem to
>> be working for me in Leopard. Neither [window update] and [window
>> display] seem to have any visible effect.
>>
>> If I go to the Finder and create a new file, this does force the Open
>> panel to re-check everything. And of course if I browse to a
>> different folder and then browse back, that also solves it. However
>> neither of these tricks seems to be very useful :)
>>
>> Any ideas? Did this change in Leopard or is there some trick I'm
>> missing?

>
> Yes, call -validateVisibleColumns. It is sort of expensive, so don't
> call it too frequently. If you want a cheaper version, please log a
> feature request.
>
> corbin