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POAdd items from NSSet to UITableView (convert NSSet to multiple arrays?)
 

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  1. POAdd items from NSSet to UITableView (convert NSSet to multiple arrays?)
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    <p>I have a UITableView that adds information from a Core Data the following way:</p> <ol> <li>The "Category" for various names is added at the header</li> <li>The names that correspond to the Category should be loaded in cells beneath the Category</li> </ol> <p>Right now I have the header loading the right name and the right number of sections and rows being added. However - the results from Core Data are being returned as an NSSet, so I can't add each name to the cells based on the indexPath.row. </p> <p>Any suggestions? For reference: </p> <pre><code>cell.textLabel.text = [NSString stringWithFormat:@"%@",[[[dataToUse objectAtIndex:indexPath.section]valueForKey:@"heldBy"]valueForKey:@"name"]]; </code></pre> <p>Returns the appropriate set of names to each cell of the appropriate section, but it returns the ENTIRE set to each cell. I just want each name to be added based on which row it's a part of. I can solve this by converting the NSSet to an Array, but since there are multiple sets being created (because there are multiple categories) I don't see how I can do this. </p> <p>EDIT: I fixed my problem by doing the following, but I'm still interested to know what the best thing to do would have been.</p> <pre><code>NSSet *daset = [[dataToUse objectAtIndex:indexPath.section]valueForKey:@"heldBy"]; NSMutableArray *addToLabel = [[NSMutableArray alloc]init]; int i = 0; for(NSSet *contact in daset) { [addToLabel insertObject:[contact valueForKey:@"name"] atIndex:i]; NSLog(@"%@",addToLabel); i++; } cell.textLabel.text = [NSString stringWithFormat:@"%@",[addToLabel objectAtIndex:indexPath.row]]; </code></pre>
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    1. USTommy Nicholas
    1. USTommy Nicholas
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    1. CO`NSFetchedResultsController` does exactly what you need (presents your rows organized into sections based on your CoreData model graph). [Take a look at the docs here](http://developer.apple.com/library/ios/#DOCUMENTATION/CoreData/Reference/NSFetchedResultsController_Class/Reference/Reference.html)
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      1. USAlladinian
    2. COMy fellow developer told me this is the case. I'm going to stick with my solution just so I can move on, but it's top of my list for things to go back to ASAP. Thanks man! If you post that as an answer, I'll mark it as accepted.
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      1. USTommy Nicholas
    3. COYou're welcome. I've added the answer and I'm glad you found it useful.
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      1. USAlladinian
 

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