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Re: Sorting NSManagedObjects in an NSTableView




On Aug 1, 2005, at 1:27 AM, Blake Seely wrote:

Thanks for the suggestion Scott.

For the meantime, that's what I've done - I added a method to my main app delegate that passes back very simple sort descriptors - basically just the key to sort on and to sort Ascending. Or is there something else I should point the arraycontroller sort descriptors at?

No, that's fine.


I was hoping to do this without adding any code. Is there a reason that setting the key and method do the column in IB doesn't work for nsmanagedobjects like it does for custom model objects? (Hillegass' book has an example of this - a custom model object, sets the sort key and method in IB and it will sort on its own).

I believe that when you create the binding for contentArray the sortDescriptors are automatically bound to the array controller. I could be wrong about that though.


if that's the case, then the binding would appear to take precedence.

On Jul 31, 2005, at 10:09 PM, Scott Anguish wrote:



On Jul 31, 2005, at 8:25 PM, email@hidden wrote:



Hello,

I've got an NSArrayController with a predicate set in the predicate editor so that the NSArrayController only shows a subset of my NSManagedObjects.

I have an NSTableView bound to the NSArrayController. I have two columns showing. I would like to sort of the rows showing in the TableView based on one of the keys in the NSManagedObjects. How do I do this?

NSTableColumn's Attributes page lets me set a sort key. I entered the name of the key I wanted to sort on there, but no luck. Do I need to produce sortDescriptors somewhere in my chain?




If you set the sortDescriptors on your array controller, you'll be all set.


--
"William Cheeseman ... is said not to be a doofus in real life." - Roger Ebert, Chicago Sun-Times Online


Scott Anguish
email@hidden


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References: 
 >Sorting NSManagedObjects in an NSTableView (From: email@hidden)
 >Re: Sorting NSManagedObjects in an NSTableView (From: Scott Anguish <email@hidden>)
 >Re: Sorting NSManagedObjects in an NSTableView (From: Blake Seely <email@hidden>)



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