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Making the Text in a Text Cell change color when the Rows Checkbox has been checked.

Answer 1

+2 A:

If you can target 10.6, implement tableView:willDisplayCell:forTableColumn:row: in your table view's delegate to set the cell's text color based on the value of whatever property that backs the checkbox.

Peter Hosey 2009-09-21 17:02:44

Hmm. Isn't there an easier way, I seem to remember something about using a Binding to do this, is that possible?

Joshua 2009-09-21 17:16:49

It's possible to bind the table column's text color, yes. But your question sounds more like you're using text color to display the same property as the checkbox in a different way, which means that the text-color binding—which would require a text-color property of the model object—isn't appropriate.

Peter Hosey 2009-09-21 18:52:52

So would the code look a bit like this, http://fwdr.org/z2ek. But what would I put where I said 'What would I put here' to check if the check box on the row is checked?

Joshua 2009-09-22 16:34:12

First, you need to make sure you're looking at the correct column, which you can do by comparing the column's identifier (you *did* assign the columns identifiers in IB, right?). This is better than a `respondsToSelector:` check, since you may have multiple text cells.

Peter Hosey 2009-09-22 19:58:20

Next, get the model object at the specified row, then get its value for the property that the checkbox column shows. Set the cell's `textColor` based on that value.

Peter Hosey 2009-09-22 19:59:09

Is this better. http://pastebin.com/d225a6b33. Does the Code at the top get the model object at the specified row? However, I still don't understand how I would 'get its value for the property that the checkbox column shows'.

Joshua 2009-09-23 06:09:30

Well, you wrote it. You tell me what it does.

Peter Hosey 2009-09-23 07:17:05

Item equals the item at row index.

Joshua 2009-09-23 15:24:15

That's just reading it literally. What does it *do*?

Peter Hosey 2009-09-23 15:48:51

It is the Row that is Selected or at the row index.

Joshua 2009-09-23 15:55:40

I don't see a condition in that statement. That means it only does one thing, not one thing or a different thing. So: Which one is it?

Peter Hosey 2009-09-23 18:19:33

Ok, So it does one thing.

Joshua 2009-09-24 06:55:51

I already said that. Which one?

Peter Hosey 2009-09-24 15:31:08

Ok. It's the row at the row index.

Joshua 2009-09-24 16:42:23

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Making the Text in a Text Cell change color when the Rows Checkbox has been checked.

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