Hi All,
I have an NSComboBox that is bound to a datasource. I want to programatically
select a default selection when the sheet the combobox is in is first
displayed. To do so I am doing the following:
NSString * defaultSelectionValue = [myDS defaultSelectionValue];
NSUInteger defaultSelectionIndex = [myDS comboBox:self
indexOfItemWithStringValue:defaultSelectionValue];
[self selectItemAtIndex:defaultSelectionIndex];
[self setObjectValue:[myDS comboBox:self
objectValueForItemAtIndex:defaultSelectionIndex]];
'self' is a subclass of NSCombobox. 'myDS' is the datasource - which contains
has information of what the default selection should be (stored in an NSString).
In interface builder I bound the value of the NSComboBox to a variable in a
model class.
My problem is that it seems the model variable is not being properly informed
of the change that is done when the combo box default selection is made - so
that if the user closes the sheet the model variable is still 'nil'. If the
user changes the selection then it works as expected. I tried to addd the
following line when setting the default selection - thinking that maybe I had
to change the NSComboBox value via key value selection:
[self setValue:[myDS comboBox:self
objectValueForItemAtIndex:defaultSelectionIndex]
forKey:@"value"];
but got the following error:
[<AVSComboBox 0x10047b8c0> setValue:forUndefinedKey:]: this class is not key
value coding-compliant for the key value.
I was wondering if anyone had idea on how to fix this?
Thank you,
Mazen Abdel-Rahman
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