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Re: willDisplayOutlineCell of view-based NSOutlineView is not called
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Re: willDisplayOutlineCell of view-based NSOutlineView is not called


  • Subject: Re: willDisplayOutlineCell of view-based NSOutlineView is not called
  • From: Lee Ann Rucker <email@hidden>
  • Date: Thu, 21 Jun 2012 01:05:44 -0700 (PDT)

isItemExpandable and isGroupItem have nothing to do with NSCells. They're called for the items.

Cell-based table and outlineView reuse the cells for each row; this was a memory-saving technique 20 years ago, not so useful today. So before they drew a particular cell it had to be configured for the item; that's what the willDisplayCell methods are for.

outlineView:viewForTableColumn:item: is where you can create custom views.

----- Original Message -----
From: "Nava Carmon" <email@hidden>
To: email@hidden
Sent: Thursday, June 21, 2012 12:27:02 AM
Subject: willDisplayOutlineCell of view-based NSOutlineView is not called

Hi,

I want to customize the disclosure arrow appearance in my view-based NSOutlineView.
I overrode the willDisplayOutlineCell delegate method, but it's not called.
The willDisplayCell delegate method - is not called either. Is it known issue or I'm missing something?

(The isItemExpandable delegate function and isGroupItem returns YES for the expandable cell)

Thanks,

Nava




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      • From: Nava Carmon <email@hidden>
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 >willDisplayOutlineCell of view-based NSOutlineView is not called (From: Nava Carmon <email@hidden>)

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