StackOverflow2013

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5969346
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2011-05-11T19:09:05.620
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2011-05-11T19:09:05.620
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Body
I found the problem: it was a simple mistake! What I was doing there was filtering the same array over and over, so, when it got filtered to nothing the first time it hadn't any object anymore. So I just solved by changing the if-else statement as follows: <pre><code>// if (searching) NSPredicate *grammarType; if (section == 1) { NSMutableArray *intermediateResults = [NSMutableArray arrayWithArray:searchResults]; grammarType = [NSPredicate predicateWithFormat:@"type == %@", @"Intermediate"]; [intermediateResults filterUsingPredicate:grammarType]; return [intermediateResults count]; } else if (section == 2) { NSMutableArray *advancedResults = [NSMutableArray arrayWithArray:searchResults]; grammarType = [NSPredicate predicateWithFormat:@"type == %@", @"Advanced"]; [advancedResults filterUsingPredicate:grammarType]; return [advancedResults count]; } else { NSMutableArray *basicResults = [NSMutableArray arrayWithArray:searchResults]; grammarType = [NSPredicate predicateWithFormat:@"type == %@", @"Basic"]; [basicResults filterUsingPredicate:grammarType]; return [basicResults count]; } </code></pre> It was simple, right? ;) Anyway, I still don't have an answer to the second question: “I've noticed that the title headers for the sections, while searching (meaning after I got the search results), don't scroll together with the table as usual, but stay fixed in their places. Instead a copy of them seem to be made and those work the usual way. How is it possible?”
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1. POUITableView -> numberOfRowsInSection not working as I thought…
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1. USGianluca Tranchedone
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1. POUITableView -> numberOfRowsInSection not working as I thought…
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Querying!

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.