update UITableView when section is removed from NSFetchedResultsController

UITableView question :

I use Core Data and this delegate method to update my table view (of course with couple willChange and didChange)

- (void)controller:(NSFetchedResultsController *)controller didChangeSect开发者_开发知识库ion:(id <NSFetchedResultsSectionInfo>)sectionInfo
       atIndex:(NSUInteger)sectionIndex
 forChangeType:(NSFetchedResultsChangeType)type {

Why the sections under my table view are not updated if I don't ask reloadData in the end of this delegate method ?!

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It's difficult to tell without seeing your code.However, silly as it seems, you may have forgotten to set the NSFetchedResultsController's delegate. Check this in your code.