Question

I have a flawless functioning view-based NSOutlineView with a proper set-up datasource in my project. Now I want to allow the user to change certain entries. So I made the NSTextField in the IB editable. For a cell-based NSOutlineView you can use the delegate method outlineView:setObjectValue:forTableColumn:byItem: however it’s not available for a view-based NSOutlineView as stated in the header file for the NSOutlineViewData protocol:

/* View Based OutlineView: This method is not applicable.
*/

(void)outlineView:(NSOutlineView *)outlineView setObjectValue:(id)object forTableColumn:(NSTableColumn *)tableColumn byItem:(id)item;

So I searched for another delegate method and found outlineView:shouldEditTableColumn:item:. However this delegate method doesn’t get fired. Probably because I’m not editing a cell.

So my question is: Is there any other way to notice when a row changed than having a delegate for each NSTextField?

Answer 1

Well, it seems like Apple wants us to use the delegate methods of each NSTextField as stated here:

This method is intended for use with cell-based table views, it must not be used with view-based table views. Instead target/action is used for each item in the view cell.

So there’s currently no other way to do this.