Set UITextField Maximum Length in iphone

Wednesday

iPhone SDK: Set Max Character length TextField:
                                                                       The UITextField class has no max length property, it's simple to get this functionality by setting the text field's delegate

Step 1: Implement the UITextFieldDelegate protocol and tag into your text field(s).

Step 2: Add the following line in to top of your .m file

#define MAX_LENGTH 10

Step 3: Implement the following method textField:shouldChangeCharactersInRange:replacementString

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
    if (textField.text.length >= MAX_LENGTH && range.length == 0)
    {
        return NO; // return NO to not change text
    }
    else
    {

     return YES;

    }
}