Setting the corner radius of a LinkButton control in Flex

The following example shows how you can set the corner radius on a Flex LinkButton control by setting the cornerRadius style.

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/09/02/setting-the-corner-radius-of-a-linkbutton-control-in-flex/ -->
<mx:Application name="LinkButton_cornerRadius_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:ApplicationControlBar dock="true">
        <mx:Form styleName="plain">
            <mx:FormItem label="cornerRadius:">
                <mx:HSlider id="slider"
                        minimum="0"
                        maximum="10"
                        value="4"
                        snapInterval="1"
                        tickInterval="1"
                        liveDragging="false" />
            </mx:FormItem>
        </mx:Form>
    </mx:ApplicationControlBar>

    <mx:LinkButton id="linkButton"
            label="LinkButton"
            cornerRadius="{slider.value}" />

    <mx:Label text="Roll over the link button to see corner radius" />

</mx:Application>

View source is enabled in the following example.

You can also set the cornerRadius style in an external .CSS file or <mx:Style /> block, as seen in the following example:

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/09/02/setting-the-corner-radius-of-a-linkbutton-control-in-flex/ -->
<mx:Application name="LinkButton_cornerRadius_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Style>
        LinkButton {
            cornerRadius: 10;
        }
    </mx:Style>

    <mx:LinkButton id="linkButton"
            label="LinkButton" />

    <mx:Label text="Roll over the link button to see corner radius" />

</mx:Application>

Or, you can set the cornerRadius style in ActionScript, as seen in the following example:

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/09/02/setting-the-corner-radius-of-a-linkbutton-control-in-flex/ -->
<mx:Application name="LinkButton_cornerRadius_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            import mx.events.SliderEvent;

            private function slider_change(evt:SliderEvent):void {
                linkButton.setStyle("cornerRadius", evt.value);
            }
        ]]>
    </mx:Script>

    <mx:ApplicationControlBar dock="true">
        <mx:Form styleName="plain">
            <mx:FormItem label="cornerRadius:">
                <mx:HSlider id="slider"
                        minimum="0"
                        maximum="10"
                        value="4"
                        snapInterval="1"
                        tickInterval="1"
                        liveDragging="false"
                        change="slider_change(event);" />
            </mx:FormItem>
        </mx:Form>
    </mx:ApplicationControlBar>

    <mx:LinkButton id="linkButton"
            label="LinkButton" />

    <mx:Label text="Roll over the link button to see corner radius" />

</mx:Application>