nspredicate
Using NSPredicate to analyze strings
Howdy! This question is pretty long so be sure to have a seat first :) At one point in my code I get a string from the user, and I analyze that string. By analyzing I mean going through every charact[详细]
2023-03-10 00:55 分类:问答What's the best way to generate this string? (NSMutableString...)
I have a dictionary whose keys are NSStrings and whose objects are NSArray. Here\'s an example: key (NSString) : GroupA[详细]
2023-03-09 22:17 分类:问答Can you use an array index value as a parametre in a predicate to filter an array
I\'m wondering if it\'s possible to filter an NSArray with a NSPredicate using an array index value, ie[详细]
2023-03-09 17:35 分类:问答NSPredicate versus NSString: Which is better/faster for finding superstrings?
I have a large number of strings that I\'m searching to see if a given substring exists. It seems there are two reasonable ways to do this.[详细]
2023-03-09 09:49 分类:问答NSPredicate multiple field search
I\'m trying to search multiple fields. Something like this: [NSPredicate predicateWithFormat:@\"(name title contains[cd] %@) A开发者_StackOverflowND (title contains[cd] %@\",self.searchBar.text];[详细]
2023-03-09 09:06 分类:问答nspredicate multiple items from an array
how to use NSPredicate to satisfy multiple conditions NSEntityDescription *entity = [NSEntityDescription entityForName:@\"MessageData\" inManagedObjectContext:managedObjectConte开发者_如何学编程xt];[详细]
2023-03-09 06:08 分类:问答NSFetchRequest with NSPredicate sometimes throws NSInvalidArgumentException
This one is baffling me: I have a core data set that I search/filter using the following code: NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];[详细]
2023-03-08 20:25 分类:问答NSPredicate question
I want to delete all annotations except RestaurantLocation or GrayRestaurantLocation. is it correct version ?[详细]
2023-03-08 08:29 分类:问答AQGridView problem when i modify the fetchRequest's predicate
I\'m trying to change the fetchRequest\'s predicate on my NSFetchedResultsController, but when i try to reload the data from the aqgridview, none cell is displayed.[详细]
2023-03-06 22:45 分类:问答How to use NSPredicate to filter based on child elements?
I\'m using Core Data; let\'s say that I have a many-to-one relationship between employees and departments, and employees are stored in an NSSet in each department. I want to开发者_如何学JAVA find all[详细]
2023-03-06 12:12 分类:问答