Notice (2018-05-24): bugzilla.xamarin.com is now in
Please join us on
Visual Studio Developer Community and in the
Mono organizations on
GitHub to continue tracking issues. Bugzilla will remain
available for reference in read-only mode. We will continue to work
on open Bugzilla bugs, copy them to the new locations
as needed for follow-up, and add the new items under Related
Our sincere thanks to everyone who has contributed on this bug
tracker over the years. Thanks also for your understanding as we
make these adjustments and improvements for the future.
Please create a new report on
Developer Community or GitHub with
your current version information, steps to reproduce, and relevant error
messages or log files if you are hitting an issue that looks similar to
this resolved bug and you do not yet see a matching new report.
public virtual void DidChangeSection(NSFetchedResultsController controller, NSFetchedResultsSectionInfo sectionInfo, uint sectionIndex, NSFetchedResultsChangeType type)
public virtual void DidChangeSection(NSFetchedResultsController controller, INSFetchedResultsSectionInfo sectionInfo, uint sectionIndex, NSFetchedResultsChangeType type)
I have checked this and noticed that below is declaration of "NSFetchedResultsControllerDelegate.DidChangeSection" method
public virtual void DidChangeSection (NSFetchedResultsController controller, NSFetchedResultsSectionInfo sectionInfo, uint sectionIndex, NSFetchedResultsChangeType type)
Refer screen cast: http://screencast.com/t/UumkKteIcsWm
XS 4.2.3 (Build 59)
Xamarin.iOS : 220.127.116.11
@Nick this is a breaking change and we avoid them when possible (most of the time) but I think the current delegate might not work (from a previous similar regarding NSFetchedResultsSectionInfo*).
* is was bound before we had the [Protocol] support that provide the I* interfaces.
Can you provide us with a self-contained test case using the API ?
Created attachment 6242 [details]
INHO, It is not a breaking change because noone can use this functionality. As soon as you start using it you will discover that it just doesn't work and you can't do anything with it. It seems that you never ever tryed to use this functionality.
Thanks for providing a test case. I see you found a workaround using the weak delegate.
The "breaking change" definition is based on .NET definition - i.e. can an existing (binary) assembly, with a reference to an old monotouch.dll, still works if we update monotouch.dll. This is extremely important for component (vendors and consumers). And yes sometime unusable code gets "caught" being (partially) used (e.g. implementing an interface but the method is never called).
Still we do make exceptions when an API was unusable. This was done for an earlier issue wrt [I]NSFetchedResultsSectionInfo but it seems this API was missed. I'll review for other CoreData API using this type (from a quick look it seems to be the only one).
For some reasons* CoreData is not used very often by .NET developers. There might be more bugs than usual inside the part of the class library.
* the main one being it's not a cross-platform feature, so code cannot be reused in Android or Windows[.Phone] (but can be reused for OSX with Xamarin.Mac).
Fixed in master / c197d63c63dab287dfde47858b3cd083e0380add
I have checked this in method declaration of System.Core assembly. This has been fixed.
Screen Cast Info :
XS 4.2.4 (build 32)
Hence closing this issue.
> System.Core assembly
That change is located in monotouch,dll - howver your screencast points to monotouch.dll, so I assume you confused CoreData (namespace) with Stysrem.Core (assembly) while writing the above description.
Yes, I have checked in monotouch.dll. I apologize for incorrect syntax.