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POnumberofSectionInTablesView/NumberofRowsInsection
 

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    <p>I am having trouble returning the numberofSections/numberofRows. I have a dictionary full of data</p> <pre><code>-(void)setUpContacts{ //set up the contacts NSString *string = @"ABCDEFGHIJKLMNOPQRSTUVWXYZ"; letterArray = [[NSMutableDictionary alloc]init]; Contacts *contact = [[Contacts alloc]init]; contactNumbers = [contact phoneNumbers]; for (NSDictionary* info in contactNumbers) { firstLetter = [info objectForKey:@"lastName"]; index = @"_"; if([firstLetter length] &gt; 0){ firstLetter =[firstLetter substringToIndex:1]; firstLetter= [firstLetter capitalizedString]; NSRange range = [string rangeOfString:firstLetter]; if(range.length &gt;= 0){ index= firstLetter; } } if(![letterArray objectForKey:index]){ [letterArray setValue:[NSMutableArray array] forKey:index]; } [[letterArray objectForKey:index] addObject:info]; } NSLog(@"%@",letterArray);} </code></pre> <p>and it NSLogs with this</p> <pre><code>C = ( { firstName = Alex; kind = Mobile; lastName = Chang; name = "Alex Chang (Mobile)"; number = "(555) 555-5555"; }, { firstName = YuYu; kind = Mobile; lastName = Chen; name = "YuYu Chen (Mobile)"; number = "(408) 112-2334"; }, { firstName = Chris; kind = Mobile; lastName = Choi; name = "Chris Choi (Mobile)"; number = "(999) 999-9999"; }, { firstName = Kevin; kind = Mobile; lastName = Chung; name = "Kevin Chung (Mobile)"; number = "1 (231) 241-2312"; } ); H = ( { firstName = Danny; kind = Mobile; lastName = Huang; name = "Danny Huang (Mobile)"; number = "(408) 599-9770"; }, { firstName = Ice; kind = Mobile; lastName = Huang; name = "Ice Huang (Mobile)"; number = "(408) 444-4444"; } ); K = ( { firstName = Will; kind = Mobile; lastName = King; name = "Will King (Mobile)"; number = "(415) 123-4567"; } ); L = ( { firstName = ""; kind = iPhone; lastName = LastName; name = " LastName (iPhone)"; number = "(408) 123-2555"; }, { firstName = david; kind = Mobile; lastName = lub; name = "david lub (Mobile)"; number = "(666) 666-1111"; } ); </code></pre> <p>for the -(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView; method how do i retrieve the number of sections for index;</p> <p>and for the -(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section; method, how do i retreive the number of rows in the section?</p> <h2>EDIT</h2> <pre><code>-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{ NSArray *array = [letterArray mutableCopy]; return [[array objectAtIndex:section]count];} </code></pre> <p>and it gives me this error: -[__NSCFDictionary objectAtIndex:]: unrecognized selector sent to instance 0x8434cc0</p> <p>Thank you in advance</p>
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    1. COPlease, Make your question clear...
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    2. COenglish is not my first langauge, sorry about that. I want to know what syntax is to return the number of rows
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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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