<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/01/31/reducing-the-vertical-space-around-a-separator-in-a-flex-popupbutton-controls-pop-up-menu-by-enabling-variable-row-heights/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
		layout="horizontal"
		verticalAlign="top"
		backgroundColor="white" viewSourceURL="srcview/index.html">

	<mx:Style>
		PopUpButton {
			openDuration: 0;
			closeDuration: 0;
			fontWeight: normal;
			textAlign: left;
		}
	</mx:Style>

	<mx:Script>
		<![CDATA[
			import mx.events.FlexEvent;
			import mx.controls.Menu;
			import mx.utils.ObjectUtil;

			private function popUpButton1_initialize():void {
				var menu:Menu = new Menu();
				menu.showRoot = false;
				menu.labelField = "@label";
				menu.dataProvider = ObjectUtil.copy(dp);
				popUpButton1.popUp = menu;
			} 

			private function popUpButton2_initialize():void {
				var menu:Menu = new Menu();
				menu.showRoot = false;
				menu.labelField = "@label";
				menu.dataProvider = ObjectUtil.copy(dp);
				menu.variableRowHeight = true;
				popUpButton2.popUp = menu;
			}

			private function popUpButton_creationComplete(evt:FlexEvent):void {
				var pUB:PopUpButton = evt.currentTarget as PopUpButton;
				// resize and open
				pUB.popUp.width = pUB.width;
				pUB.open();
			}
			
			private function openPopUpButtons():void {
				popUpButton1.open();
				popUpButton2.open();
			}
		]]>
	</mx:Script>
	
	<mx:XML id="dp" source="dp.xml" />

	<mx:PopUpButton id="popUpButton1"
			label="variableRowHeight = false"
			openAlways="true"
			width="250"
			initialize="popUpButton1_initialize();"
			creationComplete="popUpButton_creationComplete(event);"
			open="openPopUpButtons();" />

	<mx:PopUpButton id="popUpButton2"
			label="variableRowHeight = true"
			openAlways="true"
			width="250"
			initialize="popUpButton2_initialize();"
			creationComplete="popUpButton_creationComplete(event);"
			open="openPopUpButtons();" />

</mx:Application>