Hi all, I have an NSTableView whose data source is bound to an NSArrayController. To one of its columns (displaying a custom type) I have attached a custom NSFormatter subclass. The NSFormatter correctly returns NO from getObjectValue:forString:error: if the supplied string is not acceptable. Despite this, however, validation is not enforced; when tabbing out of the field, the table view carries on and just assigns a null value to the corresponding property.
Even when I implement control:didFailToFormatString:errorDescription: in the NSTableView's delegate, an invalid null value is nevertheless accepted and focus moves to the next responder, despite returning NO. My current implementation has been using an in-memory (transient) CoreData stack, but I have pared that back to simply use NSArrayController in "class" mode and behaviour is the same. The modelled property in question is a custom class (not a plist-compliant primitive, hence in part the need for a custom NSFormatter); however, two-way behaviour in the NSTableView works fine except for the lack of validation. I must be missing something fundamentally obvious, but I can't figure out where to approach the fix. Enlightenment would be appreciated. thanks, -ben -- Ben Kennedy, chief magician Zygoat Creative Technical Services http://www.zygoat.ca _______________________________________________ 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
