NSObjectController needless in "Intro to Bindings"?
NSObjectController needless in "Intro to Bindings"?
- Subject: NSObjectController needless in "Intro to Bindings"?
- From: Jochen Moeller <email@hidden>
- Date: Wed, 4 Jun 2008 01:25:57 +0200
Greetings!
Here my 1st question to this list :-)
I started with Bindings and worked through the great article
"Introduction to Cocoa Bindings" by Scott Stevenson.
<http://cocoadevcentral.com/articles/000080.php>
All works fine as expected even when I delete the NSObjectController
"ControllerAlias" and change the Binding of the NSArrayController
"Mailboxes".
Here are the details:
Two Model classes: Email and Mailbox.
A custom controller: MyController with ivar (NSMutableArray) and
accessor "mailboxes".
Original Bindings:
NSObjectController "ControllerAlias":
content-Outlet is set to MyController instance
NSArrayController "Mailboxes":
Bind to: ControllerAlias
Controller Key: selection
Model Key Path: mailboxes
Object Class Name: Mailbox
My Bindings:
NSObjectController "ControllerAlias": deleted
NSArrayController "Mailboxes":
Bind to: MyController
Controller Key: -
Model Key Path: mailboxes
Object Class Name: Mailbox
Both versions run identical, so my question:
Are both approaches equivalent and the NSObjectController is not
really needed or is there a reason/advantage to hook the
NSObjectController between MyController and the NSArrayController ?
Thanks
Jochen Moeller
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