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easy way to refresh branch of NSOutlineView

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easy way to refresh branch of NSOutlineView

Subject: easy way to refresh branch of NSOutlineView
From: Duncan Campbell <email@hidden>
Date: Mon, 27 Jun 2005 21:13:07 +1000

My problem:

I am creating a simple file browser using an NSOutlineView. I have it hooked up to be notified when a file changes in a folder that is current being displayed as expanded.

My problem is in re-drawing the appropriate branch when I receive this notification. Because I use a datasource to populate my view, if I force a refresh of a branch, then I lose the state of all the sub- branches (because, obviously they are being re-calculated as new items in the datasource).

Can anyone suggest an idea of how I may accomplish this? I am thinking of something like:

[outlineView reloadItemsWhileMaintainingExpandedState] or something...


Duncan Campbell
=====================
http://www.duncanandsarah.com


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