Adding methods to dataSource

Subject: Adding methods to dataSource
From: Björn Carlström <email@hidden>
Date: Fri, 2 Jul 2004 08:49:40 +0200

I'm subclassing NSOutlineView to add the possibility to delete rows through the delete key. How do I add a new method (deleteItem:) to the NSOutlineViewDataSource. Just calling it works of course but I get a warning that the method might not exist. Do I subclass the NSOutlineViewDataSource somehow ?

Bjvrn Carlstrvm
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