Setting the chrome color on the MX DataGrid control in Flex 4

The following example shows how you can set the base/theme color on the MX DataGrid control (with the default Spark skin) in Flex 4 by setting the chromeColor style.

The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 trial, see www.adobe.com/products/flex/. To download the latest nightly build of the Flex 4 SDK, see 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/2009/07/18/setting-the-base-color-on-the-halo-datagrid-control-in-flex-4/ -->
<s:Application name="MX_DataGrid_chromeColor_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/mx">
    <s:controlBarContent>
        <mx:Form styleName="plain">
            <mx:FormItem label="chromeColor:">
                <mx:ColorPicker id="colorPicker"
                        selectedColor="#CCCCCC" />
            </mx:FormItem>
        </mx:Form>
    </s:controlBarContent>
 
    <mx:DataGrid id="dataGrid"
            chromeColor="{colorPicker.selectedColor}"
            horizontalCenter="0" verticalCenter="0">
        <mx:dataProvider>
            <mx:ArrayList source="{Font.enumerateFonts(true)}" />
        </mx:dataProvider>
    </mx:DataGrid>
 
</s:Application>

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View source is enabled in the following example.

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

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/07/18/setting-the-base-color-on-the-halo-datagrid-control-in-flex-4/ -->
<s:Application name="MX_DataGrid_chromeColor_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/mx">
 
    <fx:Style>
        @namespace s "library://ns.adobe.com/flex/spark";
        @namespace mx "library://ns.adobe.com/flex/mx";
 
        mx|DataGrid {
            chromeColor: haloBlue;
        }
    </fx:Style>
 
    <mx:DataGrid id="dataGrid"
            horizontalCenter="0" verticalCenter="0">
        <mx:dataProvider>
            <mx:ArrayList source="{Font.enumerateFonts(true)}" />
        </mx:dataProvider>
    </mx:DataGrid>
 
</s:Application>

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

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/07/18/setting-the-base-color-on-the-halo-datagrid-control-in-flex-4/ -->
<s:Application name="MX_DataGrid_chromeColor_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/mx">
    <s:controlBarContent>
        <mx:Form styleName="plain">
            <mx:FormItem label="chromeColor:">
                <mx:ColorPicker id="colorPicker"
                        selectedColor="#CCCCCC"
                        change="colorPicker_changeHandler(event);"/>
            </mx:FormItem>
        </mx:Form>
    </s:controlBarContent>
 
    <fx:Script>
        <![CDATA[
            import mx.events.ColorPickerEvent;
 
            protected function colorPicker_changeHandler(evt:ColorPickerEvent):void {
                dataGrid.setStyle("chromeColor", evt.color);
            }
        ]]>
    </fx:Script>
 
    <mx:DataGrid id="dataGrid"
            horizontalCenter="0" verticalCenter="0">
        <mx:dataProvider>
            <mx:ArrayList source="{Font.enumerateFonts(true)}" />
        </mx:dataProvider>
    </mx:DataGrid>
 
</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.