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Editorial Team
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Asked: 2026-06-05T13:08:07+00:00

I have an NSTableView with multiple selections enabled If I select items and scroll

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I have an NSTableView with multiple selections enabled

If I select items and scroll the list back and forth they are remember and shown and selected (blue background).
Using the didDeselectRowAtIndexPath and didSelectRowAtIndexPath I am able to keep my own array of selected items.

that part works well.

However If I then use the sectionForSectionIndexTitle and jump to a letter The selection appears to be forgotten even indexPathForSelectedRows appears to have been reset and is now empty.

My own array remembers that an item is selected and I can set the cell.selected in the cellForRowAtIndexPath but the instant I move the list it is forgotten again

Any ideas is this a bug or how do you retain the selection list when jumping to a letter

Thanks in advance

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1 Answer

  1. Editorial Team

    By using an NSMutableArray of selected row values, it may be possible to keep track of the selected rows in the table yourself. Then it would be a matter of calling -selectRowAtIndexPath:animated on the last object in the array to restore the selections.

    As for the bug: what could possibly be happening when the table jumps to a selected letter, is a stray -reloadData which would forget the selected row(s).

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