Allowing multiple file selection on an FileSystemDataGrid control in Adobe AIR

<?xml version="1.0" encoding="utf-8"?>
<!-- http://airexamples.com/2008/12/21/allowing-multiple-file-selection-on-an-filesystemdatagrid-control-in-adobe-air/ -->
<mx:WindowedApplication name="FileSystemDataGrid_allowMultipleSelection_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white"
        showStatusBar="false"
        width="1020"
        height="720">
 
    <mx:ApplicationControlBar dock="true">
        <mx:Form styleName="plain">
            <mx:FormItem label="allowMultipleSelection:">
                <mx:CheckBox id="checkBox" selected="true" />
            </mx:FormItem>
        </mx:Form>
    </mx:ApplicationControlBar>
 
    <mx:Form width="100%" height="100%">
        <mx:FormItem label="FileSystemDataGrid:"
                width="100%"
                height="100%">
            <mx:FileSystemDataGrid id="dataGrid"
                    allowMultipleSelection="{checkBox.selected}"
                    width="100%"
                    height="100%" />
        </mx:FormItem>
        <mx:FormItem label="selectedIndices:" width="100%">
            <mx:List dataProvider="{dataGrid.selectedIndices}"
                    width="100%"
                    rowCount="3" />
        </mx:FormItem>
        <mx:FormItem label="selectedItems:" width="100%">
            <mx:DataGrid dataProvider="{dataGrid.selectedItems}"
                    width="100%"
                    rowCount="3"
                    itemRenderer="mx.controls.Label" />
        </mx:FormItem>
        <mx:FormItem label="selectedPaths:" width="100%">
            <mx:List dataProvider="{dataGrid.selectedPaths}"
                    width="100%"
                    rowCount="3" />
        </mx:FormItem>
    </mx:Form>
 
</mx:WindowedApplication>