I have a NSTextField which should only accept numbers in a certain range say
(-72000.00 to 72000.00).
I tried using NSFormatter whihc worked partially. when i hit any alphabet
character on the keyboard, the value in the NSTextField stays numeric but the
cursor moves forward which is not desired. Heres how i set the formatter.
NSNumberFormatter* numFormatr = [[NSNumberFormatter alloc] init];
[numFormatr setFormatterBehavior:NSNumberFormatterBehaviorDefault];
[numFormatr setNumberStyle:NSNumberFormatterDecimalStyle];
[numFormatr setMinimumFractionDigits:2];
[mtextfield setFormatter:numFormatr];
Am i doing something wrong here..??
I tried an alternate approach using the delegate method controlTextDidChange:
I ended up with the same problem as above. cursor position is incremented when
an invalid character is typed.
- (void) controlTextDidChange:(NSNotification *)obj
{
// get the string value from the textfield
// eliminate invalid characters in the string
// set the result string as stringvalue of textfield
}
I was wondering if there is any alternative / better approach for validating
text in a textfield??
Thanks,
Abhinay.
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