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  1. PO
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    <p>It took me a few tries to get this working...</p> <p>My key to understanding was realizing that there are two tableViews at work here. One managed by my viewcontroller and one managed by the searchviewcontroller and then I could test to see which is active and do the right thing. The documentation was helpful too:</p> <p><a href="http://developer.apple.com/library/ios/#documentation/uikit/reference/UISearchDisplayController_Class/Reference/Reference.html" rel="noreferrer">http://developer.apple.com/library/ios/#documentation/uikit/reference/UISearchDisplayController_Class/Reference/Reference.html</a></p> <p>Here's what I did - </p> <p>Added the searchIsActive flag:</p> <pre><code>@interface ItemTableViewController : UITableViewController &lt;NSFetchedResultsControllerDelegate, UISearchDisplayDelegate, UISearchBarDelegate&gt; { NSString *sectionNameKeyPath; NSArray *sortDescriptors; @private NSFetchedResultsController *fetchedResultsController_; NSManagedObjectContext *managedObjectContext_; BOOL searchIsActive; } @property (nonatomic, retain) NSManagedObjectContext *managedObjectContext; @property (nonatomic, retain) NSFetchedResultsController *fetchedResultsController; @property (nonatomic, retain) NSString *sectionNameKeyPath; @property (nonatomic, retain) NSArray *sortDescriptors; @property (nonatomic) BOOL searchIsActive; </code></pre> <p>Added the synthesize in the implementation file.</p> <p>Then I added these methods to for searching:</p> <pre><code>#pragma mark - #pragma mark Content Filtering - (void)filterContentForSearchText:(NSString*)searchText scope:(NSString*)scope { NSFetchRequest *aRequest = [[self fetchedResultsController] fetchRequest]; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"name BEGINSWITH[cd] %@", searchText]; [aRequest setPredicate:predicate]; NSError *error = nil; if (![[self fetchedResultsController] performFetch:&amp;error]) { // Handle error NSLog(@"Unresolved error %@, %@", error, [error userInfo]); abort(); } } #pragma mark - #pragma mark UISearchDisplayController Delegate Methods - (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString { [self filterContentForSearchText:[self.searchDisplayController.searchBar text] scope:nil]; return YES; } /* - (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchScope:(NSInteger)searchOption { return YES; } */ - (void)searchDisplayControllerWillBeginSearch:(UISearchDisplayController *)controller { [self setSearchIsActive:YES]; return; } - (void)searchDisplayControllerDidEndSearch:(UISearchDisplayController *)controller { NSFetchRequest *aRequest = [[self fetchedResultsController] fetchRequest]; [aRequest setPredicate:nil]; NSError *error = nil; if (![[self fetchedResultsController] performFetch:&amp;error]) { // Handle error NSLog(@"Unresolved error %@, %@", error, [error userInfo]); abort(); } [self setSearchIsActive:NO]; return; } </code></pre> <p>Then in controllerWillChangeContent:</p> <pre><code>- (void)controllerWillChangeContent:(NSFetchedResultsController *)controller { if ([self searchIsActive]) { [[[self searchDisplayController] searchResultsTableView] beginUpdates]; } else { [self.tableView beginUpdates]; } } </code></pre> <p>And controllerDidChangeContent:</p> <pre><code>- (void)controllerDidChangeContent:(NSFetchedResultsController *)controller { if ([self searchIsActive]) { [[[self searchDisplayController] searchResultsTableView] endUpdates]; } else { [self.tableView endUpdates]; } } </code></pre> <p>And delete the cache when resetting the predicate.</p> <p>Hope this helps.</p>
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    1. POHow to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar
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    1. USRob Cohen
    1. USRob Cohen
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      1. VTUpMod
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    1. COyet I don't understand, the example above very good, but incomplete, but your recommendation should work, but it doesn't...
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      1. USVladimir Stazhilov
    2. COYou could just check the active table view instead of using a BOOL: `if ( [self.tableView isEqual:self.searchDisplayController.searchResultsTableView] ) { ... }`
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      1. USrwyland
    3. CO@rwyland - My testing shows that self.tableview is not set to the searchdisplaycontroller.searchresultstableview when search is active. These would never be equal.
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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