Strange problem with increase an integer and switch

I wrote this code to change the text of a textObject.
Calling the function I change the %n variable and with the switch I set the text.
This work for case 1 but not for case 2.
I try also with two if and with

$textField.text = %n;

to see if the %n value change but the textObject display only 1.

This is my code.

Someone could tell me why the text object don't want to change his value?

function textClass::onLevelLoaded(%this, %scenegraph){
	$textField = %this;
	
	moveMap.bindCmd(keyboard, "space", "textFieldChange();", "");
}

function textFieldChange(){
	%n++;
	switch(%n){
		case 1:
			$textField.text = "ciao";
			
		case 2:
			$textField.text = "buongiorno";
	}
}

Thanks to all