Flex Examples » PropertyReference() http://blog.flexexamples.com Just a bunch of Adobe Flex Examples Wed, 26 Jan 2011 18:09:51 +0000 en hourly 1 Changing the opening and closing easing functions on a Halo ComboBox control in Flex 4 http://blog.flexexamples.com/2009/08/05/changing-the-opening-and-closing-easing-functions-on-a-halo-combobox-control-in-flex-4/ http://blog.flexexamples.com/2009/08/05/changing-the-opening-and-closing-easing-functions-on-a-halo-combobox-control-in-flex-4/#comments Wed, 05 Aug 2009 14:20:05 +0000 Peter deHaan http://blog.flexexamples.com/?p=1504 In a previous example, “Changing the Flex ComboBox control’s opening and closing easing functions”, we saw how you could control how the open/close duration and easing functions on the drop down list in a Halo ComboBox control by setting the openDuration, openEasingFunction, closeDuration, and closeEasingFunction styles.

The following example shows how you can set [...]]]> In a previous example, “Changing the Flex ComboBox control’s opening and closing easing functions”, we saw how you could control how the open/close duration and easing functions on the drop down list in a Halo ComboBox control by setting the openDuration, openEasingFunction, closeDuration, and closeEasingFunction styles.

The following example shows how you can set the Halo ComboBox control’s openEasingFunction and closeEasingFunction styles in a <Style/> block using the new PropertyReference() method in Flex 4.

Full code after the jump.

The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 trial, see http://www.adobe.com/products/flex/. To download the latest nightly build of the Flex 4 SDK, see http://opensource.adobe.com/wiki/display/flexsdk/Download+Flex+4.
For more information on getting started with Flex 4 and Flash Builder 4, see the official Adobe Flex Team blog.

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/08/05/changing-the-opening-and-closing-easing-functions-on-a-halo-combobox-control-in-flex-4/ -->
<s:Application name="Halo_ComboBox_openEasingFunction_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo">
 
    <fx:Script>
        <![CDATA[
            import mx.effects.easing.*;
        ]]>
    </fx:Script>
 
    <fx:Style>
        @namespace s "library://ns.adobe.com/flex/spark";
        @namespace mx "library://ns.adobe.com/flex/halo";
 
        mx|ComboBox {
            openDuration: 1000;
            openEasingFunction: PropertyReference("mx.effects.easing.Bounce.easeOut");
            closeDuration: 1000;
            closeEasingFunction: PropertyReference("mx.effects.easing.Bounce.easeIn");
            alternatingItemColors: #DFDFDF, #EEEEEE;
        }
    </fx:Style>
 
    <mx:ComboBox id="comboBox"
            prompt="Please select an item..."
            selectedIndex="-1"
            dropdownWidth="150"
            horizontalCenter="0"
            top="20">
        <mx:dataProvider>
            <fx:Array>
                <fx:Object label="Item 1" />
                <fx:Object label="Item 2" />
                <fx:Object label="Item 3" />
                <fx:Object label="Item 4" />
                <fx:Object label="Item 5" />
                <fx:Object label="Item 6" />
                <fx:Object label="Item 7" />
                <fx:Object label="Item 8" />
            </fx:Array>
        </mx:dataProvider>
    </mx:ComboBox>
 
</s:Application>

View source is enabled in the following example.

This entry is based on a beta version of the Flex 4 SDK and therefore is very likely to change as development of the Flex SDK continues. The API can (and will) change causing examples to possibly not compile in newer versions of the Flex 4 SDK.

 
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