AS3: How to get height of a dynamically created text field

Question

I am importing text from an XML file and want the lines of text to display in separate text fields beneath each other. How can I set the y value of each succeeding text field so that there is some space (40 pixels or so) from the above field, regardless of the length of the text? Here is my current code. Any help would be greatly appreciated.
var textArray:Array = new Array();
for (var i:int; i <myXML.TOPIC[0].QUERY.length(); i++) {
var textField:TextField = new TextField();
textField.htmlText = myXML.TOPIC[0].QUERY[i].QUESTION;
textField.x = 100;
//below is my problem....I want the y value to be based on the height of all the previous text fields that have been created
textField.y = 100+(40*i);
textField.border = true;
textField.width = 800;
textField.textColor = 0x000000;
textField.multiline = true;
textField.wordWrap = true;
textField.selectable = false;
addChild(textField);
textArray.push(textField);

Answer 1

There's nothing wrong with the approach you took... retain it as is.  What I was suggesting is basically the same, just a slightly different angle that doesn't need the conditional....
var currentY:Number = 100;
for (var j:int = 0; j <myXML.TOPIC[0].QUERY.length(); j++) {
   textArray[j].y =  currentY;
    // text gets added somewhere in here
    currentY =  currentY+textArray[j].height+5;