Erik, I've only made a custom subclass of NSArrayController once and that was a long time a go to do some custom thing that I don't remember now. Normally I add an array to the appropriate view controller that has the table data in it and then bind the NSArrayController's content to that array. Then for the table I bind the columns to arrayController.arrangedObjects.someKey. Unless I need to do some sort of custom work when adding or removing objects I make add and remove buttons that connect directly to the methods of NSArrayController. As long as I don't make any changes to the array in the view controller behind KVO's back the binding magic takes over and I don't need to make a data source at all and the only delegate stuff I have to deal with is stuff like selecting and sorting/re-sorting. Make sure your array controller prepares content.
Hope that helps, Mike Swan ETCP Certified Entertainment Electrician http://www.theMikeSwan.com "Change itself is not painful it is resistance to change that causes pain." On 3 Aug, 2012, at 1:16 AM, cocoa-dev-requ...@lists.apple.com wrote: > Message: 12 > Date: Thu, 02 Aug 2012 22:16:20 -0700 > From: Erik Stainsby <erik.stain...@roaringsky.ca> > To: "cocoa-dev@lists.apple.com (Apple)" <cocoa-dev@lists.apple.com> > Subject: Very basic table binding blind spot > Message-ID: <20c1a352-8903-4727-a8f7-f1cc585ef...@roaringsky.ca> > Content-Type: text/plain; charset=windows-1252 > > > > I do so wish there was a Complete Idiot's Guide to Cocoa Table Bindings … The > very flexibility which I know must be their great virtue tends to obscure the > clear path from my sight more often than not. Forest, trees, trees, forest … > Oh! Something shiny! > --- > > So tonight I have an NSArrayController (RSTableArrayController) which I have > populated with dictionary objects of the form: > > [self.content addObject:[NSDictionary dictionaryWithObjects: [NSArray > arrayWithObjects: key, [mvo valueForKey:key],nil] forKeys:[NSArray > arrayWithObjects:@"label",@"value",nil]]]; > > > > For this simple two column data I have a two column table, using Table View > Cells (I'm going to have visual objects in place of the 'label' later on). > I have set the identifier for the tableView columns very imaginatively to > "label", and "value". > The array controller is also < NSTableViewDataSource, NSTableViewDelegate >. > I have implemented the following two delegate methods: > > - (NSInteger) numberOfRowsInTableView:(NSTableView *)aTableView { > return self.content.count; > } > > - (id) tableView:(NSTableView *)aTableView > objectValueForTableColumn:(NSTableColumn *)tableColumn > row:(NSInteger)rowIndex { > NSString * identifier = [tableColumn identifier]; > NSDictionary * dict = [self.content objectAtIndex:rowIndex]; > NSLog(@"%s- [%04d] %@: %@", __PRETTY_FUNCTION__, __LINE__, > identifier,[dict valueForKey:identifier]); > return [dict valueForKey:identifier]; > } > > In the nib, I have an ArrayController object of the class described above > RSTableArrayController. It is wired up as the delegate and dataSource for the > tableView. > > > And here is where I get lost time and again, tracing the appropriate path to > the content and it's constituent data parts and binding them to the > appropriate element in the tableView. > > » Scroll View > » Table View > » Table Column > » Table Cell View > » Static Text > Text Field Cell > > Given that the delegate method is called -[tableView: > objectValueForTableColumn: row:] I should expect to bind the > arrayController's objectValue in the Bindings Inspector to the ?node? in the > object browser. Do I need to do more than get that right? > > ~ Erik, > currently batting .034 in the bindings league ... > _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
