Hello List,

I have objects storing simple scalar values (NSInteger, double). Those values/properties are bound to text fields. Now, if the user clears the text field and the underlying property gets updated, it's not simply setting the value to 0 or its equivalent, instead

- (void)setNilValueForKey:(NSString *)key

is invoked. Failing to implement it causes an exception when exiting out of a cleared text field bound to a scalar value.

I was wondering if there was a more direct and less glue-code involving way of doing this. I don't want to go and store NSNumbers instead of scalar values, which I imagine would have the advantage of accepting nil values inherently.

Can I tell the bindings system to directly set scalars to 0 in case of nil values?

Regards
Markus
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Markus Spoettl

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