• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Re: Listening for changes in a table
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Listening for changes in a table


  • Subject: Re: Listening for changes in a table
  • From: Chris Idou <email@hidden>
  • Date: Thu, 18 Sep 2008 20:27:00 -0700 (PDT)

--- On Thu, 9/18/08, Ken Thomases <email@hidden> wrote:

> Two possibilities:
>
> * If you used a custom class rather than a dictionary, then
> there
> would be a setter of your own design called when the
> property is set
> due to a change in the checkbox.

Yes I could do that, but given that I'm storing the result in the user preferences, and the user preferences can store dictionaries but not objects, I was hoping to stay with dictionaries.

Maybe I should try inheriting from NSMutableDictionary or something.

> * Your controller can use KVO to observe the property to
> which the
> checkbox is bound.  Then it will receive change
> notifications when the
> property is changed.

Would that mean observing every single dictionary in the array and adding and removing observers as the array expands and contracts? Sounds fiddly.

--- On Thu, 9/18/08, I. Savant <email@hidden> wrote:

>    Why does everybody forget about / ignore
> <NSTableDataSource>?

I'm a bit vague on how a DataSource and an ArrayController work together. Do you choose one or the other? In any case, it sounds like a fairly fiddly option too.






_______________________________________________

Cocoa-dev mailing list (email@hidden)

Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com

Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden

  • Follow-Ups:
    • Re: Listening for changes in a table
      • From: Chris Idou <email@hidden>
References: 
 >Re: Listening for changes in a table (From: Ken Thomases <email@hidden>)

  • Prev by Date: PrefPane initialFirstResponder and nextKeyView
  • Next by Date: Core data in private framework.
  • Previous by thread: Re: Listening for changes in a table
  • Next by thread: Re: Listening for changes in a table
  • Index(es):
    • Date
    • Thread