cocoa-bindings

Problem Description I'm trying to achieve something that should be simple and fairly common: having a bindings populated NSPopupButton inside bindings populated NSTableView. Apple describes this for a cell based table in the their documentation Implementing To-One Relationships Using Pop-Up Menus and it looks like this: I can't get this to work for a view based table. The "Author" popup won't populate itself no matter what I do. I have two array controllers, one for the items in the table ( Items ) and one for the authors ( Authors ), both associated with the respective entities in my core

(self asking and self-answering because I spent hours on the web looking for this, and most of the resources all say "I solved it in the end" without giving an explanation) I had a very simple Core Data + Bindings application: An NSArrayController pulling items out of Core Data An NSTableView rendering them Another NSTableView that when you click on a row in the first table, displays the details of that item Item 3 above was causing application crash, with the error: [(my NSManagedObject) copyWithZone:]: unrecognized selector sent to instance Implementing that method (!) and putting a

Has anybody found a clear, concise example or guide on how to implement a source list using the view-based NSOutlineView introduced in Lion? I've looked at Apple's example project, but without any sense of direction or explanation, I'm finding it difficult to grasp the concept of exactly how they work. I know how to use the excellent PXSourceList as a fallback, but would really like to start using view-based source lists instead if at all possible. You tagged this with the cocoa-bindings tag, so I assume you mean "with bindings." I whipped up a quick example. Start from a new non-document

I have trouble understanding Cocoa Bindings. Can someone explain me what this is all about, in an way that is humanly perceivable? Bindings is a system for connecting your views to your controllers without writing a lot of glue code to make them explicitly talk to each other. All you have to do is set up properties in both classes* and hook up the binding in IB. The traditional approach is that the view has one or more outlets to talk to the controller (the most generic examples being delegate and target ) and the controller has outlets to talk to the views. When the controller updates the

I have a small set of objects from which the user should be able to select one using a radio button group. The objects are already bound to an array controller. Is there a way to bind that array controller to a radio button group so that additional radio buttons are generated dynamically? If possible, an IB solution is preferred. Example project: https://scriptreactor.com/collectionviewtest_radio.zip Goal is to be able to select one of the items "a", "b", "c", and have that selection available in the view controller. You can bind the button state through objectValue ( NSTableViewCell ) in a