On Dec 17, 2009, at 11:07, Gustavo Pizano wrote: > In fact what I want is to allow the user to, create new Items, and use > Exiting ones, in any case a new ItemXInvoice must be created somehose,...For > the second option I had in mind, that once I select an exiting Item, then I > click an "Use selected" button, this one will create a ItemXInvoice relate it > to the selected Item and insert it into the NSArrayController which is bound > to the NSTableView .... can this work?...
It's hard to get that to work if you're using NSArrayController's 'add:' method, but if you use an action method of your own, it should be fairly straightforward. (You can use NSArrayController's 'addObject:' method to add the new ItemXInvoice to the table after you've created the relevant objects, or if you add it to the Core Data model KVO-compliantly the NSArrayController will get notified automatically.) You may want to keep thinking about the interface, though. What if you want to add an item (ItemXInvoice) to *this* invoice based on an Item that's in a different invoice (and hence not displayed)? Seems to me the hard part here is designing the interface, not coding it. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
