[Q]: Core Data & Bindings, [_NSStateMarker intValue] error

[Christiaan Hofman]

You probably bind something else, probably to the selection or  
something. See the NSIsControllerMarker function. You get a state  
marker when a bound value is invalid, like nil or a multiple value.  
You should take care that your app handles this correctly when using  
a bound value.

Christiaan

On 19 Jan 2008, at 12:22 AM, Nick Toumpelis wrote:

> Hi all,
>
> I would appreciate any help you can give me on this - I spent ages  
> trying to solve it and looked everywhere for anything that might help.
>
> I have an NSTableView which is bound to an NSArrayController, which  
> manages a set of Core Data entities. I also have Add and Remove  
> buttons, which are connected to the add: and remove: actions of the  
> controller - a typical use of Core Data and Bindings.
>
> When I add the first entity by clicking the Add button or when  
> saveAction: is called (and in other circumstances), I often get  
> this error:
>
> 2008-01-18 12:25:33.304 blogosphere[10865:10b] *** -[_NSStateMarker  
> intValue]: unrecognized selector sent to instance 0x10ba60
>
> This error, in some cases, is not apparent to the user. In other  
> cases, it stops the execution of the running method.
>
> I would be grateful if you could help me with this or point me to  
> the right direction.
>
>
> Kind regards,
>
> Nick
>
>
>
> ____________________________________________________________
> Nick Toumpelis						email: nick at toumpelis.me.uk
> BEng (Wales), MSc (Manchester)
> Software Developer
> Thessaloniki, Greece
>
>
>
>
>
>
> ____________________________________________________________
> Nick Toumpelis						email: nick at toumpelis.me.uk
> BEng (Wales), MSc (Manchester)
> Software Developer
> Thessaloniki, Greece
>
>
>
>
>
>
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