NSComboBoxDelegate called but old 'stringValue' remains

Question

I select a value from the drop-down of a combo box. The NSComboBox delegate fires a comboBoxSelectionDidChange: notification, but when I retrieve the stringValue of the combo box, it's the old selected value. How do I get the updated value?

I have a dataSource specified, so itemObjectValueAtIndex: and objectValueOfSelectedItem don't work.

@Bavarious: objectValueOfSelectedItem won't work since I'm using a dataSource. Exception thrown: ` *** -[NSComboBoxCell objectValueOfSelectedItem] should not be called when usesDataSource is set to YES ` — AWF4vk, Jul 09 '11 at 01:15

score 4 · Accepted Answer · answered Jul 09 '11 at 01:22

4

If you’re using a data source, then:

NSString *s = [yourDataSource comboBox:comboBox
             objectValueForItemAtIndex:[comboBox indexOfSelectedItem]];

should work if your data source provides strings. Otherwise, convert the object returned by this method to a string.

answered Jul 09 '11 at 01:22

Whats this in Swift? I seem to keep getting a crash? – UKDataGeek Jan 15 '18 at 16:25

score 2 · Answer 2 · edited May 23 '17 at 12:11

2

From here:

I got the selected value using:

NSString *strValue = [comboBox itemObjectValueAtIndex:[comboBox indexOfSelectedItem]];

edited May 23 '17 at 12:11

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answered Jul 09 '11 at 01:11

Chris Gregg

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Doesn't work. Exception thrown: `*** -[NSComboBoxCell itemObjectValueAtIndex:] should not be called when usesDataSource is set to YES` – AWF4vk Jul 09 '11 at 01:16

NSComboBoxDelegate called but old 'stringValue' remains

2 Answers2