Restrict NSTextField input to numeric only? NSNumberformatter

Question

I\'m just getting started up with Mac App Development and so far everything is good well, I\'m just having problems trying to get a NSTextField to only accept numbers for th

Answer 1

Subclass NSNumberFormatter and implement this method:

- (BOOL)isPartialStringValid:(NSString **)partialStringPtr
       proposedSelectedRange:(NSRangePointer)proposedSelRangePtr
              originalString:(NSString *)origString
       originalSelectedRange:(NSRange)origSelRange
            errorDescription:(NSString **)error