I found the solution. Just do [theTextView didChangeText] in the end of the changes.
Thanks - Peng On Wed, Apr 24, 2013 at 2:08 PM, Kyle Sluder <k...@ksluder.com> wrote: > Mutating an attributed string doesn't count as "key-value coding", even if > the string itself is exposed as a KVC-compliant property. > > Since the only KVC-compliant change for the textStorage property would be > to change it to a completely new object instance, and that would be very > wasteful, you will need to add another property that you mutate in a > KVC-compliant manner to trick Core Data into noticing your attributed > string has changed. > > --Kyle Sluder > > On Apr 23, 2013, at 11:41 PM, Peng Gu <pan...@gmail.com> wrote: > > > I have a textview that is binding to Core data, I want to be able to > > highlight the selected text in the textview. > > > > *[self.textStorage addAttribute:NSBackgroundColorAttributeName value:[ > > NSColor yellowColor] range:self.selectedRange];* > > > > The code above works, but core data won't save the attributes changes > > unless I type some words in the Textview. Calling moc to commit editting > > doesn't save the changes too. > > > > *[aManagedObjectContext commitEditing];* > > > > *[aManagedObjectContext save:&error];* > > > > I also tried to set the value of the object in Core data after adding the > > attributes, but *[aManagedObject setValue:text forKey:@"text"] *will > make > > the textview lose focus. > > > > > > Is there any way to force the core data to save the changes immediately? > Or > > any better way to highlight selected text in NSTextview, like > addFontTrait: > > used by Bold, Italic Menu Items? > > > > > > Thanks, > > > > - Peng > > > > * > > * > > _______________________________________________ > > > > 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/kyle%40ksluder.com > > > > This email sent to k...@ksluder.com > _______________________________________________ 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
