Re: 'Raises For Not Applicable Keys' not enough to step exception raises?
Re: 'Raises For Not Applicable Keys' not enough to step exception raises?
- Subject: Re: 'Raises For Not Applicable Keys' not enough to step exception raises?
- From: "Sean McBride" <email@hidden>
- Date: Tue, 6 May 2008 18:28:58 -0400
- Organization: Rogue Research
On 5/6/08 2:03 PM, Keary Suska said:
>> I have an app that uses an NSOutlineView bound to an NSTreeController in
>> entity mode. The tree controller matches all 'Shape' entities, but
>> there are also sub-entities named 'Square' and 'Circle'. I have a
>> master-detail UI. All 'Shapes' have a 'name' attribute and there is no
>> problem there. Only 'Circle' has a 'radius' attribute however, and I
>> want to show this in a textfield. I've bound the textfield and
>> unchecked the 'Raises For Not Applicable Keys'.
>>
>> The problem is that I'm still getting an NSException raised. It's
>> raised from [Circle valueForUndefinedKey:]. 'Circle' is an
>> NSManagedObject subclass.
>>
>> Does one also have to implement valueForUndefinedKey: in this
>> situation? I thought removing 'Raises For Not Applicable Keys' was
>> supposed to be sufficient.
>
>I think you also have to specify a "Not Applicable" placeholder as
>well--have you done that?
I have. And it is even correctly shown in the textfield. But I still
get the exception thrown by NSManagedObject's valueForUndefinedKey: The
docs even say "The default implementation raises an
NSUndefinedKeyException" which seems to be what I'm seeing, but I don't
get why its happening even with 'Raises For Not Applicable Keys' off.
Thanks for your help Keary.
--
____________________________________________________________
Sean McBride, B. Eng email@hidden
Rogue Research www.rogue-research.com
Mac Software Developer Montréal, Québec, Canada
_______________________________________________
Cocoa-dev mailing list (email@hidden)
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:
This email sent to email@hidden