On Feb 5, 2010, at 9:52 AM, cocoa-dev-requ...@lists.apple.com wrote: > >> I have a NSTableView with a column of checkboxes. I have the checkbox value >> bound to an NSInteger instance in a class which is in an array bound as the >> content to an array controller. > > The checkbox cell should not be bound to anything. (Note: It's a checkbox > cell, not a checkbox.) The only way I've ever seen table/array controller > "binding" work is to bind the *table column* to the array controller using > Controller Key arrangedObjects. Perhaps I wasn't clear. The checkbox is bound to the array through the table column as it should be. > >> When the program starts the column is filled with 16 rows and the checkbox >> is set to off ... the checkbox column gives the error... > > Can't make an array into a BOOL. That's expected, based on the binding you > described. The point is this binding does work as long as there are no other columns bound to managed objects. > >> This column is not bound to a core data managed object. The other columns >> are. I can get rid of this error if I remove the binding on the other >> columns that are bound to core data managed objects. >> >> So, the question is can a TableView have columns where some columns are >> bound to core data managed objects and others to unmanaged objects? If not, >> then is there a way to prevent changes to a managed object from causing the >> document from being tagged as dirty and triggering the "Save" dialog when >> closing? > > It does not matter whether objects are managed objects or not. But what does > matter is that all the columns in the table should be bound to the > arrangedObjects of the same array controller. I don't see your table would > make any sense to the user otherwise. The key paths to which different > columns are bound may be mixed "managed properties" and "non-managed > properties". The latter may be regular instance variables or derived > properties -- anything that is KVC-compliant. Setter may be omitted if the > corresponding table column/cell is not editable. OK, the issue may be that all columns need to be bound using the same array controller. I have two array controllers, one for managed and one for unmanaged data. Since the array controller's "object controller" can be set to a class or to an entity but not both, I don't see how managed and unmanaged data can be mixed.
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