Changing text dynamically with drag / drop in Flash CS6 (AS3) - actionscript-3

Question

I have some incredibly simple code that works fine in letting me drag a "slider" button horizontally. However, I also want the text that appears above the object to change depending upon what the x-coordinate is of the object I'm dragging.
Here's the simple code:
var rectangle:Rectangle = new Rectangle(31,944,179,0);
Button.addEventListener(MouseEvent.MOUSE_DOWN, fl_ClickToDrag);
function fl_ClickToDrag(event:MouseEvent):void
{
Button.startDrag(false, rectangle);
}
Button.addEventListener(MouseEvent.MOUSE_UP, fl_ReleaseToDrop);
function fl_ReleaseToDrop(event:MouseEvent):void
{
Button.stopDrag();
gotoAndPlay(20);
}
What I'm wanting to do is have the system determine where the "Button" is in terms of its x-coordinate, and if the x-coordinate is higher than, say, 50, for the text above the "Button" to say "50+", and if the x-coordinate is higher than 100 for the text to change to "100+". I'm also not sure if the x-coordinate should be relative to the rectangle or relative to the entire screen.
Any and all help is appreciated.

Answer 1

You can use a boolean var to indicate if your button is dragged and if, then update your text field like this :
var is_dragged:Boolean = false;
var rectangle:Rectangle = new Rectangle(0, 100, stage.stageWidth - button.width, 0);
stage.addEventListener(Event.ENTER_FRAME, _onEnterFrame);
function _onEnterFrame(e:Event):void {
if(is_dragged){
text_field.text = String(Math.round(button.x / 50) * 50) + '+';
}
}
button.addEventListener(MouseEvent.MOUSE_DOWN, button_onPress);
function button_onPress(e:MouseEvent):void {
button.startDrag(false, rectangle);
is_dragged = true;
}
button.addEventListener(MouseEvent.MOUSE_UP, button_onRelease);
function button_onRelease(e:MouseEvent):void {
button.stopDrag();
is_dragged = false;
}
You can see this code working here.
Hope that can help.