I would like to use an NSOutlineView to drive my preferences for
selecting the tabs. I am having some trouble creating my datasource
for this. I have attached a code attempt that used CFXMLTree, that
worked except for I ended up with a root node that only had a
subnode, which isn't what I really wanted. I want it to look more like
NSOutlineView asks the DataSource for the number of items and the
actual items by sending nil. In your datasource, you should create an
array of root items, which you return when item is nil.
I understand that, I am having trouble creating a datasource for this.
Jim
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