Any thoughts of what might be causing this? I think it's more straightforward for either the app delegate or one controller or another to create the MOC, and bind through the controller(s). –stevesliva Jan 28 '15 at 18:49 In any of those events, you would not need to update the bindings in IB. –stevesliva Jan 29 '15 at 3:00 I've tried adding a managedObjectContext object to the Hint :configure your browser Monospace font in the Preferences. weblink
I get "3/28/08 1:17:58 PM System Preferences Cannot > perform operation without a managed object context". Any > thoughts of what might be causing this? They will be ignored. > Cocoa-dev mailing list (
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Join them; it only takes a minute: Sign up Cannot perform operation without a managed object context up vote 0 down vote favorite I'm trying add items from core data query I can fetch data by executing request on the same context though. –Khundragpan May 3 at 14:01 add a comment| 1 Answer 1 active oldest votes up vote 0 down vote How to make figure bigger in subfigures when width? Why is Professor Lewin correct regarding dimensional analysis, and I'm not?
I still see one complaint for each tab that gets loaded but it works after that. The > debugger doesn't really give me an understandable information on > the matter, the stack doesn't contain any methods I would call. Is there a word for turning something into a competition? http://stackoverflow.com/questions/32725018/cannot-perform-operation-without-a-managed-object-context asked 6 months ago viewed 83 times active 6 months ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Related 0Elegantly add object to arraycontroller, which itself is linked to
This doesn't seem like it is coming from any of my methods, of which there are almost none anyway. up vote 9 down vote favorite 7 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 What crime would be illegal to uncover in medieval Europe? Alternately you might be able to add an entity to your model that just tracks the selected item then use that to control what is shown in the second tab. –theMikeSwan
This doesn't seem like it is coming from any of my methods, of which there are almost none anyway. http://ecoflashapps.com/cannot-perform/cannot-perform-this-operation-while-sqlserveragent.html Email check failed, please try again Sorry, your blog cannot share posts by email. %d bloggers like this: cocoa xcode cocoa xcode Cannot perform operation without a managed object context Charilaos Not the answer you're looking for? Having an NSManagedObjectContext variable doesn't mean the context exists. –Tom Harrington Sep 22 '15 at 19:27 is not nil, po moc
Why did Michael Corleone not forgive his brother Fredo? What physical evidence exists that shows motor proteins "walking" within a cell? So I tried using the Core Data Entity tool to let IB do it, and it disables the Add and Remove buttons.
Thanks! ---------------------------- Original message: I'm trying to use what I learned yesterday about Core Data in a System Prefs pane. You can answer yourself if you want. I'd like to replicate that support in my prefs pane class. share|improve this answer answered May 3 at 14:11 Willeke 2,6782310 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up
Your various controllers can then listen for those notifications and update accordingly. –The Cappy Jan 25 at 1:45 add a comment| Your Answer draft saved draft discarded Sign up or more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Expanding FULLY a macro as argument What does an expansion in early december mean for the standard format? this content Any thoughts of what might be causing this?
I'm > trying to use it in a Prefs Pane. newsgator Bloglines iNezha Tweet! Hot Network Questions What is with the speech audience? There is a one to many relationship between the Profiles and the Commands entities with the names profiles <->> commands.
If an image is rotated losslessly, why does the file size change? Both tab's work as expected with no errors independently - meaning I can add and delete Profiles->name in the table in the first tab, and I can add and delete Commands->name Any help would be greatly appreciated. This was sort of an extended comment.
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Why is looping over find's output bad practice? Let me know how it turns out. cocoa core-data nsarraycontroller magicalrecord share|improve this question asked Jun 16 '12 at 0:56 aarcarr 9919 Have you properly set up the MagicalRecord in the app delegate? –Fabiano Francesconi Jun