On 23/04/2008, at 12:08 AM, I. Savant wrote:
Having set the 'content' binding to the arrangedObjects key in IB
didn't
produce a result though doing it programmatically has. Not sure why
this
would be.
It depends. Since you have provided neither the exact bindings
settings you're using nor the code you used to establish the binding
manually, it's impossible to say.
Further, with the NSView, is there a way of knowing which of the
objects
that are contained in the NSCollectionView is being drawn and
further being
able to get the data for that specific object?
Not to sound like a broken record, but, have you *read* the
documentation? Sure, the NSCollectionView / NSCollectionViewItem
mechanism is a bit more challenging than your standard button or
table, but not by much and it is fairly well-documented. See
NSCollectionViewItem's documentation, paying particular attention to
the phrase "represented object".
What I've been using as far as trying to get the represented object is
first having the following as part of awakeFromNib in my controller
object.
[theView setDelegate:self];
[collectionView bind:@"content"
toObject:self
withKeyPath:@"arrangedObjects"
options:nil];
[collectionView setItemPrototype:collectionViewItem];
repObject = [[NSManagedObject alloc] initWithEntity:
[NSEntityDescription entityForName:@"PodcastEpisodeTimestamp"
inManagedObjectContext:[selfmanagedObjectContext]]
insertIntoManagedObjectContext:[self managedObjectContext]];
[collectionViewItem setRepresentedObject:repObject];
Though when I try to do something with what is returned by the
represented object such as
[[collectionViewItem representedObject] valueForKey:@"length"]
This unfortunately returns nil.
Is anyone aware of what I'm doing wrong with this?
Thanks,
Matthew Delves
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