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[Q] How to add nested items to NSOutlineView?

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[Q] How to add nested items to NSOutlineView?

Subject: [Q] How to add nested items to NSOutlineView?
From: JongAm Park <email@hidden>
Date: Wed, 05 Nov 2008 16:40:48 -0800

Hello.

I'm writing a "Source List View" using the NSOutlineView and an NSTreeController. It should work on Mac OS X 10.4 Tiger, so I can't use NSTreeNode.

My Source List View is based on Mark Alldritt’s source list view, http://www.latenightsw.com/blog/?p=29. Problem is that when a data source for the view is set up at first, it can even display nested items. However, if I get reference of an item in existing view and insert new item in its data source, NSMutableArray, it can't display the newly added nested items.

I tried NSTreeController's rearragneObjects and the NSOutlineView's reloadItem:reloadChildren, but it doesn't seem to work for me.

Can anyone tell me how to add new items?

Thank you.
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Re: [Q] How to add nested items to NSOutlineView?
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