On 12 Oct 2011, at 23:22, Quincey Morris wrote: > On Oct 12, 2011, at 13:31 , Luc Van Bogaert wrote: > >> I'm wondering if I should create a NSIndexSet property in my model object >> and bind it to the NSArrayController's 'selectedIndexes' key? > > Yes, but you've got the terminology wrong. The relevant concept here is a > binding name, and it's "selectionIndexes", not "selectedIndexes". > NSArrayController also has a "selectionIndexes" property, but that's what the > table view binds to, and is not involved here (except as an "intermediary" > property between the table view and the data model -- which is why a > NSArrayController is a "mediating" controller.) Also, binding actually goes > in the other direction -- you bind the object with the binding (the array > controller) to the object with the property (the model). But I'm pretty sure > that's what you meant. :) >
Thanks, I got this working in one 'direction', ie. when the selection in the table is changed, this is reflected in my UI and the 'selected' Dot objects are drawn in a different color. For this, I decided to use a NSMutableIndexSet 'dotSelectionIndexes' property in my model object, bound to the array controller's 'selectionIndexes' binding. But I'm afraid this still remains a little blurry on how to get the binding work in the other direction. Meaning, I would like to click a Dot object in my UI to select it, and this should change the selection in the table, resulting in turn in the Dot being redrawn with a different color. I was hoping that by just adding or replacing the contents of my 'dotSelectionIndexes' ivar (hence the choice for a NSMutableIndexSet) with the index of the clicked Dot, would trigger a selection change in the table because of the binding. It seems this doesn't work. So, obviously I'm still missing something. -- Luc. _______________________________________________ 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
