Instance Method インスタンスメソッド

valueAtIndex:inPropertyWithKey:

Retrieves an indexed object from the collection specified by the passed key.

Declaration 宣言 

- (id)valueAtIndex:(NSUInteger)index 
 inPropertyWithKey:(NSString *)key;

Discussion 解説

This actually works with a single-value key as well if index is 0. The method valueIn<Key>AtIndex: is used if it exists.

See Also 参照

Indexed access

- insertValue:atIndex:inPropertyWithKey:
Inserts an object at the specified index in the collection specified by the passed key.
- removeValueAtIndex:fromPropertyWithKey:
Removes the object at the specified index from the collection specified by the passed key.
- replaceValueAtIndex:inPropertyWithKey:withValue:
Replaces the object at the specified index in the collection specified by the passed key.