Re: NSArrayController <> Shared User Defaults - more detailed

FROM : Matt Neuburg
DATE : Tue Jan 01 20:35:20 2008

On Tue, 1 Jan 2008 13:25:45 +0100, Dominik Pich <<email_removed>> said:
>Hi,
>as the title states I have a Problem with binding my ArrayController
>to the Shared User Defaults...
>
>I have for example this array:
><items>
> <dict>
>  <key>name</key>
>  <string>bla1</string>
>  <key>enabled</key>
>  <true/>
> </dict>
> <dict>
>  <key>name</key>
>  <string>bla22222</string>
>  <key>enabled</key>
>  <true/>
> </dict>
> <dict>
>  <key>name</key>
>  <string>bla33</string>
>  <key>enabled</key>
>  <true/>
> </dict>
></items>
>
>--- Here's what I do:
>-the above array I read from plist
>- I use it as initial value for the NSUserDefault as a key: "items"
>
>- I then bind an NSArrayController to the shared defaults controller
> using contentArray=values.items as the binding.
>-To that Controller I bind the columns of a tableView.
> using value=arrangedObjects.name as the Binding for the 1. Column
> using value=arrangedObjects.enabled as the Binding for the 2. Column
>(using a PopupButtonCell)
>
>--- all working great so far ^^
>-> I can SEE the array I bound to just fine
>
>---But now comes the Problem:
>-> I want to be able to modify my array ... I dont want to add or
>remove objects BUT modify individual items' values. Especially I want
>to toggle their enabled states.
>
>The changes I make in my tableView though (via the popupButtons) are
>not 'reqistered' by the defaults. I never get a notification something
>changed, nor does the defaults save the modified array.
>
>Why is that? It seems to me that the new array is somehow considered
>to be identical to the old?


This might be all you need:

http://www.cocoabuilder.com/archive/message/cocoa/2006/4/22/161662

m.

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matt neuburg, phd = <email_removed>, <http://www.tidbits.com/matt/>
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