eventListener on a text box issue

programming flash
1

I am trying to set up a listener when the user changes the text in a text box.

I’ve tried:


myTextField.addEventListener(TextEvent.TEXT_INPUT, textChange);


public function textChange(event:TextEvent):void 
{
 trace("text changed");
}

as well as:


myTextField.addEventListener(Event.CHANGE, textChange);


public function textChange(event:Event):void 
{
 trace("text changed");
}

When I attempt to compile either way I get:
‘1046: Type was not found or was not a compile-time constant: TextEvent.’

I’ve got import fl.events.*; so what else am I missing to make this work? Any help would be appreciated.