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Questions tagged [nsarraycontroller]

on Mac OS X, NSArrayController is a bindings compatible class that manages a collection of objects

NSArrayController is a Cocoa class intended to bridge an array (instance of NSArray or its subclasses) and a suitable view, for instance a table view.

It provides a simple interface to add, remove, filter and sort the array, as well as the necessary bindings to interface these functions to Cocoa actions.

More information in the official docs

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Create group rows in NSTableView using CoreData backed NSArrayController

Say I have a bunch of Article objects stored within the core data model. Each article maintains, a reading progress attribute which denotes how much of the article has been read by the user. Once the user has read the article fully, the article is…
Mutahhir
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Scroll NSTableView to selection

OK, this is my situation : I have an NSMutableArray bound to an NSTableView, via an NSArrayController. I'm manipulating the table view's selection (trigger by keyboard), using NSArrayController's selectNext: and selectPrevious: The thing is : The…
Dr.Kameleon
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Programmatically retrieving the selected object of an NSArrayController

When I use an NSArrayController with instances of NSManagedObject, I was under the impression that the following would give me its selected object: [myArrayController selection] However, this gives me an instance of some private NS Proxy…
Roger
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How should I remove all items from an NSTableView controlled by NSArrayController?

I'm using an NSArrayController, NSMutableArray and NSTableView to show a list of my own custom objects (although this question probably applies if you're just showing a list of vanilla NSString objects too). At various points in time, I need to…
Slacker
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NSArrayController Entity Attribute Mysteriously Dropped

I have an NSArrayController bound to a Core Data entity — Channel. I have a method that updates the entity after a user changes the title of the Channel: NSManagedObjectContext *localContext = [NSManagedObjectContext…
Aaron Vegh
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NSCollectionView draws nothing

I'm trying to set up an NSCollectionView (I have done this successfully in the past, but for some reason it fails this time). I have a model class called "TestModel", and it has an NSString property that just returns a string (just for testing…
indragie
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Make NSTableView row editable when adding object with NSArrayController

I have a table column of NSTableView bound to to an NSArrayController in Interface Builder. The array controller is bound to Shared User Defaults Controller for the Content Array. I had to select Handles Content As Compound Value to make adding…
wigging
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NSManagedObject Not Reflecting Changes After Background Thread NSManagedObjectContextDidSaveNotification

I am having trouble with an NSManagedObject not reflecting the changes made to a persistent store after a background thread has saved it's context. The Setup In a simple test application I have a single window that lists all of the objects in my…
Hooligancat
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How to bind the selection of the NSTableView to the NSArrayController

I just want to be able to use the the methods of the nsarraycontroller called remove: and add:
lbrndnr
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How to make Deep Copy of NSManagedObject in Core Data

I am trying to make a duplicate of an existing NSManagedObject and related sub-objects in Core Data. I can't seem to find an easy way to do this. I have an NSArrayController that is populated from a Core Data database. I want to take the object at…
jschmidt
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Core Data crash report: sqlite3VdbeHalt in loading array controller

I needed some help figuring out what might be going on in this crash report. This is a un-reproducible problem for me, but some users are running into this crash repeatedly at launch. When the app launches, I load a nib which contains an…
Z S
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How do I bind an iTunes style source list to an NSTableView using Core Data?

I have an iTunes style interface in my application: Source list (NSOutlineView) on the left that contains different libraries and playlists with an NSTableView on the right side of the interface displaying information for "Presentations". Similar…
Austin
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Displaying row index in an NSTableView bound to NSArrayController

I have an NSTableView which is bound to an NSArrayController. I would like to have one of the table columns showing the index of the table row. This is easy enough to do when you implement NSTableDataSource yourself but I can't figure it out with a…
Eyal Redler
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What is the Cocoa Touch equivalent to NSArrayController?

Been starting to work with Core Data a bit, and while I've figured out how to use it in regular Cocoa applications, it seems it works a bit differently in Cocoa Touch. How do you bind entities to objects such as table cells in Cocoa Touch?
Kaji
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Finding a specific element in an NSArrayController

I've got an NSArrayController that contains a few elements. These elements has got a few attributes like 'name', 'interformation' etc. What i want is simply to find an element in the NSArrayController which has the name attribute set to, lets say,…
Mads Hartmann
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