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Lazy NSTableView cell content fetching

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Lazy NSTableView cell content fetching

Subject: Lazy NSTableView cell content fetching
From: Hamish Allan <email@hidden>
Date: Sat, 6 Aug 2005 17:11:07 +0100

Hi,

Is there any way of determining which cells in an NSTableView are currently visible? Obtaining data for one of my columns is very costly, so I want to fetch it lazily in a separate thread in response to tableView:objectValueForTableColumn:row: (which would return a placeholder), but I also want to cancel the fetching of any rows which are not still visible by the time their fetching operation comes around.

Thanks,
Hamish

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