Toggling variable row heights on a Spark VGroup container in Flex 4

By Peter deHaan On October 2, 2009 · 1 Comment

The following example shows how you can toggle variable item/row heights on a Spark VGroup container in Flex 4 by setting the Boolean variableRowHeight property.

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/2009/10/02/toggling-variable-row-heights-on-a-spark-vgroup-container-in-flex-4/ -->
<s:Application name="Spark_VGroup_variableRowHeight_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">
    <s:controlBarContent>
        <s:CheckBox id="chckBx" label="variableRowHeight" selected="true" />
    </s:controlBarContent>
 
    <s:VGroup id="vGr"
            variableRowHeight="{chckBx.selected}"
            width="200"
            horizontalCenter="0" verticalCenter="0">
        <s:Border id="brdr1"
                backgroundColor="red"
                width="100%" height="30">
            <s:Label text="{brdr1.width}x{brdr1.height}"
                    horizontalCenter="0" verticalCenter="0" />
        </s:Border>
        <s:Border id="brdr2"
                backgroundColor="haloOrange"
                width="100%" height="60">
            <s:Label text="{brdr2.width}x{brdr2.height}"
                    horizontalCenter="0" verticalCenter="0" />
        </s:Border>
        <s:Border id="brdr3"
                backgroundColor="yellow"
                width="100%" height="20">
            <s:Label text="{brdr3.width}x{brdr3.height}"
                    horizontalCenter="0" verticalCenter="0" />
        </s:Border>
        <s:Border id="brdr4"
                backgroundColor="haloGreen"
                width="100%" height="90">
            <s:Label text="{brdr4.width}x{brdr4.height}"
                    horizontalCenter="0" verticalCenter="0" />
        </s:Border>
        <s:Border id="brdr5"
                backgroundColor="haloBlue"
                width="100%" height="40">
            <s:Label text="{brdr5.width}x{brdr5.height}"
                    horizontalCenter="0" verticalCenter="0" />
        </s:Border>
    </s:VGroup>
 
</s:Application>

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.

Tagged with: Gumbo • variableRowHeight

About The Author

Peter deHaan

Peter deHaan currently works for Adobe on the Flex SDK QA team. While not working on Flex, Flash, and ColdFusion applications, Peter enjoys making up bios and writing in 3rd person. Peter's rarely updated blog can be found at blogs.adobe.com/pdehaan/, actionscriptexamples.com, airexamples.com, and coldfusionexamples.com.

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