Re: outlineViewSelectionDidChange not called

FROM : Adam Gerson
DATE : Tue Mar 25 06:42:12 2008

Hey Jens,

Thanks for getting back to me.

>  > When I
>  > remove an object from the TreeController the row representing the
>  > deleted object disappears and OutlineView selects the next row, but
>  > does not send a notification to the delegate method
>  > outlineViewSelectionDidChange.
>
>  IIRC, the notification is only sent on user-generated selection
>  changes. If you programmatically change the selected item (directly or
>  indirectly) you need to call your observer method manually, if
>  necessary.
>


There are times when this is a problem. My observer method uses the
"currently selected tree node" as the object to work with. However,
after a programatic insert, the inserted object doesn't become the
selected item of the treecontroller. I have selectsInsertedObjects set
to YES. Likewise, after an undo of a delete the outline view
graphically selects the newly resurected object, but that object does
not become the tree controller's selected object.

What I need is a way to ensure the OutlineView's selection and the
TreeController's selection always are in sync. I thought this was the
promise of bindings.

>
>  > On a separate but related note, when I add an object to the
>  > TreeController is there away to get the OutlineView to automatically
>  > select the new row?
>
>  Check the "Select Inserted Objects" box in the IB inspector for the
>  controller.
>

I have this box checked. It appears not to work when I
programmatically insert an object. It does work if I bind a button to
the insert method of the controller.