How can I use custom sorting on an NSTableView bound to an NSArrayController?

Question

I have an NSTableView connected to an NSArrayController by setting the column values in interface builder to the appropriate keys in the NSArrayController. I'd like to use a custom sorting order, specifically, compare:options: with NSNumericSearch. Where can I either change my code to do this, or tell interface builder to use a different comparison selector?

Answer 1

I'm not sure how well this would work with an ArrayController, but you might look into NSTableColumn's -setSortDescriptorPrototype: (passing your columns your own sort descriptor in code).