Question

i have to validate text field that allows only two digits after .

eg:12.34

if user enter more then two digits it won’t allows text.

let me know is it understandable or no

how can i done,can any one please help me.

Thank u in advance.

Answer 1

I resolve my problem by using this code.

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {

    NSString *newString = [textField.text stringByReplacingCharactersInRange:range withString:string];

    NSArray *sep = [newString componentsSeparatedByString:@"."];
    if([sep count]>=2)
    {
        NSString *sepStr=[NSString stringWithFormat:@"%@",[sep objectAtIndex:1]];
        return !([sepStr length]>2);
    }
    return YES;
}