NSDecimalNumber Zeros After Decimal Point (iPhone SDK)

Question

I have the following code

(...)
numberStyle = [NSDecimalNumberHandler decimalNumberHandlerWithRoundingMode:NSRoundPlain
                                                                     scale:2
                                                          raiseOnExactness:NO
                                                           raiseOnOverflow:NO
                                                          raiseOnUnderflow:NO
                                                       raiseOnDivideByZero:NO];

strThree = textFieldThree.text;
strThree = [strThree stringByReplacingOccurrencesOfString:@"." withString:@""];

fieldOneDNa = (NSDecimalNumber *)[NSDecimalNumber decimalNumberWithString:strThree];
oneHundred = (NSDecimalNumber *)[NSDecimalNumber decimalNumberWithString:@"100"];
fieldOneDN = [fieldOneDNa decimalNumberByDividingBy:oneHundred
                                       withBehavior:numberStyle];

firstStepReturn = [fieldOneDN stringValue];
textFieldThree.text = firstStepReturn;
(...)

I would like to be able to have firstStepReturn have 2 digits after the decimal point, even if they are equal to .00 or. * 0. For example, if 323.390 was entered in the textFieldThree text field, it will be processed and returned to the text field as 3233.90. At the moment, it is displayed as 3233.9.

Any help would be greatly appreciated.

Answer 1

NSDecimalNumber are subclasses of NSNumber, so you just need to use NSNumberFormatter

 NSDecimalNumber * dn = [NSDecimalNumber decimalNumberWithString:@"1234.5"];
 NSNumberFormatter * nf = [[NSNumberFormatter alloc] init];
 [nf setMinimumFractionDigits:2];
 [nf setMaximumFractionDigits:2];
 NSString *ns  = [nf stringFromNumber:dn];

Simples

Answer 2

Why not use textFieldThree.text=[NSString stringWithFormat:@"%.2f",[fieldOneDN floatvalue]];

(or something like that - sorry, I'm on a PC right now, so I can't check it)