The condenseWhite means removing extra spaces and html tags like \n,\t.

import fl.controls.*;

var checkBox:CheckBox = new CheckBox();
checkBox.label = "condenseWhite";
checkBox.labelPlacement = ButtonLabelPlacement.RIGHT;
checkBox.addEventListener(Event.CHANGE, checkBox_action);
checkBox.move(20,5);
checkBox.width = 150;
addChild(checkBox);

var tf:TextField = new TextField();
tf.x = 20;
tf.y = 30;
tf.width = tf.height = 250;

function checkBox_action(evt:Event):void {
	tf.condenseWhite = checkBox.selected;
	tf.htmlText = "http://   \n\t  blog.totusinfo.com";

}
addChild(tf);

import fl.controls.CheckBox;
import fl.controls.TextInput;

var cB:CheckBox = new CheckBox();
cB.label = "Edit Text";
cB.addEventListener(Event.CHANGE, cB_edit);
cB.move(10, 5);
addChild(cB);

var tI:TextInput = new TextInput();
tI.editable = false;
tI.move(17, 30);
addChild(tI);

function cB_edit(evt:Event):void {
    tI.editable = cB.selected;
}

import fl.controls.CheckBox;
import fl.controls.ProgressBar;

var cB:CheckBox = new CheckBox();
cB.label = "indeterminate:";
cB.move(10, 10);
cB.addEventListener(Event.CHANGE, cB_change);
addChild(cB);

var pB:ProgressBar = new ProgressBar();
pB.mode="manual";
pB.indeterminate = cB.selected;
pB.setSize(100, 20);
pB.move(15, 40);
addChild(pB);

function cB_change(evt:Event):void {
    pB.indeterminate = cB.selected;
}

import fl.controls.CheckBox;
import fl.controls.TextArea;

var cB:CheckBox = new CheckBox();
cB.label = "Display as Password";
cB.addEventListener(Event.CHANGE, cB_password);
cB.width = 200;
cB.move(10, 5);
addChild(cB);

var tA:TextArea = new TextArea();
tA.displayAsPassword = false;
tA.width = 125;
tA.move(15, 40);
addChild(tA);

function cB_password(evt:Event):void {
    tA.displayAsPassword = cB.selected;
}

import fl.controls.Slider;
import fl.controls.CheckBox;
import flash.display.*;

var checkBox:CheckBox = new CheckBox();
checkBox.label = "enabled";
checkBox.addEventListener(Event.CHANGE, checkBox_action);
checkBox.move(20,5);
addChild(checkBox);

var slider:Slider = new Slider();
slider.enabled = false;
slider.move(30, 40);
addChild(slider);

function checkBox_action(evt:Event):void {
    slider.enabled = checkBox.selected;
}

import fl.controls.ButtonLabelPlacement;
import fl.controls.CheckBox;

var cB:CheckBox = new CheckBox();
cB.label = "example";
cB.labelPlacement = ButtonLabelPlacement.LEFT;
cB.move(10, 10);
addChild(cB);