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Questions tagged [cocoa-bindings]

Cocoa bindings is Apple’s implementation of the Model-View-Controller design pattern for Mac OS X applications. It provides technologies that automate the synchronisation of domain data and the user interface elements that present them.

975 questions
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How do I bind to a custom view in Cocoa using Xcode 4?

I'm a beginner when it comes to writing Mac apps and working with Cocoa, so please forgive my ignorance. I'm looking to create a custom view, that exposes some properties, which I can then bind to an NSObjectController. Since it's a custom view, the…
dbr
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How do I bind the enabled binding of a button to whether or not an NSArrayController has a selection?

I want to bind the enabled state of an NSButton to whether or not an NSArrayController has any selected items. How do I do this?
Redwood
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What is the new way of binding an NSArrayController to the managed object context of a Core Data document?

Before Xcode went and added Storyboards for OS X apps you could connect an array controller to your document's managed object context by binding the Managed Object Context of the array controller to File's Owner with a Model Key Path of…
theMikeSwan
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Swift Bindings won't work Xcode 6 Beta 5

I'm doing a simple test program using bindings in Swift on OSX. Having an NSTableView, NSArrayController and a model class I try to hook them up together, but without success! The build compiles but gives instantly this error: Thread 1:…
Nairam
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What's a good way to bind from a shared utility window and the frontmost document window?

I have an application which allows for multiple NSDocuments to be open. In this application is a single utility window that contains some functionality that I want to apply to the frontmost document. I am trying to use bindings here, so the trick…
danwood
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NSOutlineView and NSTreeController example

Please send me some links on how to use NSOutlineView with NSTreeController bindings without using core data.
Bhanu
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5 answers

Separator item in NSPopupButton with bindings

The contents of a NSPopupButton are bound to an NSArray of strings. How can we insert a separator item via bindings? The "-" strings (like in the olden/Classic days) doesn't work, i.e. shows up literally as a "-" menu item. Is there any…
ATV
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Binding an Ordered Relationship with an NSArrayController

How does one bind an NSArrayController's content to the entities in an ordered to-many relationship? I have an unordered to-many relationship in my Core Data model, and an NSArrayController whose Content Set is bound to that relationship from the…
Khakionion
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Should I use Cocoa bindings for my latest project?

I'm starting a project which I think would benefit from bindings (I've got a source list table, several browser views, etc), but I think it would also be quite doable, and perhaps more understandable, without them. From my limited experience I've…
Redwood
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Cocoa Core Data newbie how-tos

I am one of the great unwashed masses of .NET developers keen to try their hands at Mac OS X development. At the moment I am trying to figure out the various elements of Cocoa and getting a bit stuck on Core Data. I noticed most of the documentation…
codedog
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Editable table view bound to NSArrayController bound to NSUserDefaultsController

I have a simple model Foo that represents a user preference and encapsulates an NSString and an NSNumber. I want to store an array of Foo’s in user defaults so that they persist between launches of the application; and I’d like to display them in an…
Cody Robbins
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How to bind NSTreeController's Children to Core Data ordered to-many-relationship?

Apple introduced ordered to-many-relationships in Core Data in Lion. I created an entity named TreeNode with an 1:1-object-relation, a 1:1-parent-relation and an ordered to-many-relationship children. Then I have an NSTreeController with the…
Marius Heidenstecker
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Setting up KVO for calculated values, based on calculated values

So I have two objects, Invoice and InvoiceLineItem. InvoiceLineItem has a property called cost and it is dynamically created based on other properties. To help with the KVO/bindings I use: + (NSSet *)keyPathsForValuesAffectingCost { return…
zorn
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3 answers

Sectioned NSTableView using NSArrayController

I'm trying to create a sectioned NSTableView using NSArrayController and cocoa bindings. I'm searching for a similar approach like with NSFetchedResultsController in iOS, where you can set a section key path. I want to make something similar with…
burki
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Is there a way to set up a NSCollectionView programmatically in Swift?

I'm coming from the iOS development and I am wondering if there is a way to set up a NSCollectionView programmatically like a UICollectionView in iOS? And add the NSCollectionViewItems in code. Or is the only way to set up a NSCollectionView to use…
stefOCDP
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