On 01/08/2012, at 3:07 PM, Graham Cox wrote: > NSSortDescriptor* desc = [NSSortDescriptor sortDescriptorWithKey:@"compare:" > ascending:YES];
Oops, this wasn't what I meant. The "key" should be the property you're comparing to sort the objects. If your array is a bunch of strings to be sorted, then what is the key? Well, it's actually "self": NSSortDescriptor* desc = [NSSortDescriptor sortDescriptorWithKey:@"self" ascending:YES]; Because internally the descriptor is looping over the array and doing a -valueForKey:@"self" on each object, and that returns the object itself. The sort comparison itself is done by invoking -compare: on the objects. If it's another sort of object that has a string property, then you would pass the name of that property, e.g. @"lastName". --Graham _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
