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

FROM : Corbin Dunn
DATE : Sat Jan 19 00:13:04 2008

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