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    <p>[NVM, I see you got it working already! Cool.]</p> <p>Something roughly like this should work, you'll need to season and debug to taste of course. But this is the general idea...</p> <pre><code>- (NSDictionary*)categoriesAndSortedItemsFromItems:(NSArray*)source { //Given NSArray *source with the lines you described... NSMutableDictionary *categoriesAndItems = [NSMutableDictionary dictionaryWithCapacity:3]; // Plug the items into the correct arrays by category for (NSString *line in source) { NSArray *components = [line componentsSeparatedByString:@": "]; NSString *category = [components objectAtIndex:0]; //e.g. "tree" NSString *item = [components objectAtIndex:1]; //e.g. "oak" NSMutableArray *itemsForCategory = [self arrayInDict:categoriesAndItems forKey:category]; [itemsForCategory addObject:item]; } // Now run through and sort each array if you want... NSMutableDictionary *categoriesAndSortedItems = [NSMutableDictionary dictionaryWithCapacity:3]; [categoriesAndItems enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) { NSArray *sorted = [(NSArray*)obj sortedArrayUsingSelector:@selector(compare:)]; [categoriesAndSortedItems setObject:sorted forKey:key]; }]; return categoriesAndSortedItems; } - (NSMutableArray*)arrayInDict:(NSMutableDictionary*)dict forKey:(NSString*)key { NSMutableArray *array = [dict objectForKey:key]; if (!array) { array = [[NSMutableArray alloc] initWithCapacity:10]; [dict setObject:array forKey:key]; [array release]; } return array; } </code></pre>
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    1. POObj C: Grouping strings into NSMutableDictionary
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
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    1. This table or related slice is empty.
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Guidance
A row detail

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.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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