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    <p>Rather than creating an array of custom objects containing your data, you should look at creating a dictionary.</p> <pre><code>NSMutableDictionary * theDictionary = [NSMutableDictionary dictionary]; // Here `customObjects` is an `NSArray` of your custom objects from the XML for ( CustomObject * object in customObjects ) { NSMutableArray * theMutableArray = [theDictionary objectForKey:object.country]; if ( theMutableArray == nil ) { theMutableArray = [NSMutableArray array]; [theDictionary setObject:theMutableArray forKey:object.country]; } [theMutableArray addObject:object]; } /* `sortedCountries` is an instance variable */ self.sortedCountries = [[theDictionary allKeys] sortedArrayUsingSelector:@selector(localizedCaseInsensitiveCompare:)]; /* Save `theDictionary` in an instance variable */ self.theSource = theDictionary; </code></pre> <p>Later in <code>numberOfSectionsInTableView</code>:</p> <pre><code>- (NSInteger)numberOfSectionsInTableView { return [self.sortedCountries count]; } </code></pre> <p>In <code>tableView:numberOfRowsInSection:</code>:</p> <pre><code>- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [[self.theSource objectForKey:[self.sortedCountries objectAtIndex:section]] count]; } </code></pre> <p>In <code>tableView:cellForRowAtIndexPath:</code>:</p> <pre><code>- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { [..] /* Get the CustomObject for the row */ NSString * countryName = [self.sortedCountries objectAtIndex:indexPath.section]; NSArray * objectsForCountry = [self.theSource objectForKey:countryName]; CustomObject * object = [objectsForCountry objectAtIndex:indexPath.row]; /* Make use of the `object` */ [..] } </code></pre> <p>This should take you the whole way.</p> <p><strong>Side Note</strong><br> If it weren't to present the data and just get the count of the countries then a better alternative to PengOne's approach is to use an <code>NSCountedSet</code>.</p> <pre><code>NSCountedSet * countedSet = [NSCounted set]; for ( NSString * countryName in countryNames ) { [countedSet addObject:countryName]; } </code></pre> <p>Now all unique countries are available in <code>[countedSet allObjects]</code> and count for each country would be <code>[countedSet countForObject:countryName]</code>.</p>
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    1. CO@Michael let me know if you need further help with this.
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    2. COThat worked great, thanks
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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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