Dynamically resizing TextArea ?!?!?! I cant see what I am typing

Question

http://cookbooks.adobe.com/post_Creating_a_dynamically_resizing_TextAr ea_without_s-13628.html
used code in above link, additionally I added code for width similar to height,
the else part in below
override public function set width(value:Number):void
    if(condition)
    else
                  textField.validateNow();
                    if (textField.textWidth+7<= this.maxWidth)
                        super.width=textField.textWidth+7;
                    else
                        this.wordWrap =true;
                        super.width = super.maxWidth;
also I set wordWrap=false in adjustHeightHandler and constructor. when I continue typing it reaches maxWidth then maxHeight after that i cant see what I am typing.
live scrolling reaches maximum height, but I could see by press down arrow

Answer 1

Hope the following code will help u,
public function CustomTextArea()
            super();
            this.addEventListener(KeyboardEvent.KEY_DOWN,onKeyDown);
                    private function onKeyDown(keyEvt:KeyboardEvent):void{
                              updateDisplayList(unscaledWidth,unscaledHeight);
        override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void
            super.updateDisplayList(unscaledWidth, unscaledHeight);
            this.height = this.textField.textHeight+10;
            this.textField.scrollV = 0