Change Font Size TextFormat in TextField

Question

Project: Simple Click Counter of two separate buttons.
Problem: Font size of clicks needs to be changed/increased.
link to .fla
Not sure where to place this code in the script below.
(inserting it causes font to initially to be correct size of 20 but changes back to default when a mouse click is issued)
var myFormat:TextFormat = new TextFormat();
myFormat.size = 20;
fl_TF.setTextFormat(myFormat);
var myFormat:TextFormat = new TextFormat();
myFormat.size = 20;
fl_TF2.setTextFormat(myFormat);
Script without myFormat:TextFormat applied.
var myVar=0;
var myVar2=0;
button_1.addEventListener(MouseEvent.CLICK, fl_ClickToPosition);
button_2.addEventListener(MouseEvent.CLICK, fl_ClickToPosition2);
var fl_TF:TextField
var fl_TF2:TextField
fl_TF = new TextField();
fl_TF2 = new TextField();
fl_TF.autoSize = TextFieldAutoSize.CENTER;
fl_TF2.autoSize = TextFieldAutoSize.CENTER;
fl_TF.textColor = 0xffffff;
fl_TF2.textColor = 0xffffff;
fl_TF.background = false;
fl_TF2.background = false;
fl_TF.border = false;
fl_TF2.border = false;
fl_TF.x = 102;
fl_TF2.x = 102;
fl_TF.y = 85;
fl_TF2.y = 255;
fl_TF.text = String(myVar);
fl_TF2.text = String(myVar2);
addChild(fl_TF);
addChild(fl_TF2);
function fl_ClickToPosition(event:MouseEvent):void
     myVar++;
     fl_TF.text = String(myVar);
function fl_ClickToPosition2(event:MouseEvent):void
     myVar2++;
     fl_TF2.text = String(myVar2);
Any help is greatly appreciated
Thank you

Answer 1

The setTextFormat method applies the formatting to the text in the textfield, not the textfield itself.  So when you rewrite the text in it, you basically revert back to the default formatting.  You would need to use the setTextFormat each time you write text to the textfield(s).  If the intention is to always have the text be size 20, then you can modify the default formatting instead, right after you instantiate the two textfields....
var fl_TF:TextField = new TextField();
var fl_TF2:TextField = new TextField();
var myFormat:TextFormat = new TextFormat();
myFormat.size = 20;
fl_TF.defaultTextFormat = myFormat;
fl_TF2.defaultTextFormat = myFormat;
(note: you didn't need to define two formats by the same name)