Getting the Value of a UITextField as keystrokes are entered?

On Typing in one Uitextfield can be displayed in another uitextfield 


UITextField  * text1=[[UITextField alloc]initWithFrame:CGRectMake(250, 380, 200, 50)];

    text1.userInteractionEnabled=NO;

    text1.textAlignment=UITextAlignmentLeft;

    text1.font=[UIFont fontWithName:FontNormal size:20];

    text1.keyboardType=UIKeyboardTypeDefault;

    text1.backgroundColor=[UIColor whiteColor];

    [self.view addSubview:text1];

    [text1 release];

[text1 addTarget:self action:@selector(updateLabelUsingContentsOfTextField:) forControlEvents:UIControlEventEditingChanged];

- (void)updateLabelUsingContentsOfTextField:(id)sender {

  UiLabel  *greetingLabel.text = [NSString stringWithFormat:@"Hello %@", ((UITextField *)sender).text];

}