Cocoa: Core Data + NSTableView

Question

I have a core data app set up, and everything is working pretty well. But there is one little problem. When I insert a new object into my entity I have it go to my NSTableViewCell, where I can edit it to the text I want, but there's one little issue, I can edit the cell, but I can't deselect it to save it to core data, it's stuck in edit mode and the only way I can get out of it is by quitting the application, AND it doesn't save the new name I just gave it in my cell.

Answer 1

This kind of functionality is covered in the Core Data tutorials provided by Apple. It will get you to make use of the NSArrayController which is a very helpful class for synchronising the view (NSTableView) and the model (Core Data).

I believe this is a great place to see how this works: http://developer.apple.com/cocoa/coredatatutorial/index.html

Hope that helps.

Answer 2

What method are you using to connect the table view to the core data store? Bindings? Data Source?

My guess is that you haven't implemented this at all. If you are just getting starting then I suggest implementing an NSTableViewDataSource instance.

http://developer.apple.com/mac/library/documentation/Cocoa/Reference/ApplicationKit/Protocols/NSTableDataSource_Protocol/Reference/Reference.html