Re: Getting an array/tree controller to select newly added managed objects
Re: Getting an array/tree controller to select newly added managed objects
- Subject: Re: Getting an array/tree controller to select newly added managed objects
- From: Ron Lue-Sang <email@hidden>
- Date: Fri, 18 Apr 2008 18:46:09 -0700
On Apr 18, 2008, at 2:54 PM, Sean McBride wrote:
Hi all,
Consider an app that uses bindings and Core Data. It has a tableview
bound to an array controller. There is an 'Add' button that creates a
new entity to be shown in the table. It could be implemented by:
1) sending add: to the array controller.
2) using a custom IBAction method that creates a new entity and adds
it
to the managed object context.
#1 is nice because the array controller will automatically select the
newly added object (if selectsInsertedObjects is YES). However, I
find
myself often needing to use method #2 because I must supply some
initial
data to create the new entity. In that case, the array controller
sees
the new entity but does not select it.
What is the "right" way to get it selected? Should I just pass the
new
NSManagedObject up to my view-controller and call
[theArrayController:setSelectedObjects:[NSArray
arrayWithObject:newManagedObject]]? If so, how do I do it in the tree
controller case? There is no setSelectedObjects:.
Subclass the controller and override newObject: - declared in
NSObjectController.h
Thanks,
--
____________________________________________________________
Sean McBride, B. Eng email@hidden
Rogue Research www.rogue-research.com
Mac Software Developer Montréal, Québec, Canada
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