I\'m facing problem with this. I have 10,000 rows in my dictionary and this is one of the rows Example: A (8) C (4) G (48419) T (2) when printed out
Is there a way to directly access an inner-array of an an outer array in Objective-C?For example, a call to an external data source returns the following object:
-setPrimitiveValue:forKey: won\'t trigger KVO notifications. But in my brain, KVO only makes sense when something changes. But how can change开发者_Go百科 something when I only access it for read?
Is it possible to define your own key path operators, such as @avg开发者_运维问答, @sum, etc…Short answer: Kinda. You can override valueForKeyPath: to intercept your custom operator or forward on to
EDIT Thanks to Matt\'s post I now understand that I should not be trying to access \'started\' as an array.However, if that is the case, I would like to know why this code appears to be working in oth
I have three different properties, x, y, z. If they all turn nil, I need to take an action, and if one of them is set to a value != nil, I have to carry out a different action.
For the following code, of the two comment preceded lines below, only the first works. NSManagedObject * Event = [NSEntityDescription insertNewObjectForEntityForName:str inManagedObjectContext:app.m
Why can\'t I observe the editing property of an instance of UITableViewController? I\'m using the following code:
Hi, Although I have a lot of experience in database development, I\'m having a hard time conceptualizing linking relationships in Core Data. As I understand it, the many relationship is an NSSet at
Hey.I am reading in a string from a file and attempting to use the resulting string to set a BOOL property on an object using the KVC method -setValue:forKeyPath:.However, this breaks with an exceptio
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