Copy and Paste DataGridItem

<?xml version="1.0" encoding="utf-8"?>
<mx:Module xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" backgroundColor="#323232" styleName="plain" width="100%" height="100%" verticalAlign="middle" horizontalAlign="center">

    <mx:Script>
    <![CDATA[
    private function updateMenu(index:Number):void
    {
        lastRollOverIndex = index;

        // only enable the Copy menu item when the user is over a row in the DataGrid
        if (isNaN(lastRollOverIndex))
        {
            menuItems.getItemAt(0).enabled = false;
        }
        else
        {
            menuItems.getItemAt(0).enabled = true;
        }

        cMenu.dataProvider = menuItems;
        dg.flexContextMenu = cMenu;
    }

    private function handleMenuClick(index:int):void
    {
        if (index == 0)
        {
            // add the data to the clipboard
            Clipboard.generalClipboard.clear();
            var cs:String = dg.dataProvider[lastRollOverIndex].firstName + "\t" + dg.dataProvider[lastRollOverIndex].lastName + "\t" + dg.dataProvider[lastRollOverIndex].phone + "\r\n";
            Clipboard.generalClipboard.setData(ClipboardFormats.TEXT_FORMAT, cs);
        }
        else if (index == 1)
        {
            // read the data from the Clipboard
            if (Clipboard.generalClipboard.hasFormat(ClipboardFormats.TEXT_FORMAT))
            {
                var a:Array;
                var s:String = new String(Clipboard.generalClipboard.getData(ClipboardFormats.TEXT_FORMAT));

                // split the Clipboard string into an array
                if (s.indexOf("\t") >= 0)
                    a = s.split("\t");
                else if (s.indexOf(" ") >= 0)
                    a = s.split(" ");
                else
                    a = [s];

                // assign the Array items to a new Object
                var o:Object = new Object();
                if (a.length > 2)
                    o.phone = a[2];

                if (a.length > 1)
                    o.lastName = a[1];

                if (a.length > 0)
                {
                    o.firstName = a[0];

                    // add the item to the DataGrid
                    people.addItem(o);
                }
            }
        }
    }


    ]]>
    </mx:Script>

    <mx:Number id="lastRollOverIndex"/>

    <mx:ArrayCollection id="menuItems">
        <mx:Object label="Copy"/>
        <mx:Object label="Paste"/>
    </mx:ArrayCollection>

    <mx:ArrayCollection id="people">
        <mx:Object firstName="James" lastName="Ward" phone="555-123-1234"/>
        <mx:Object firstName="Greg" lastName="Wilson" phone="555-987-6543"/>
        <mx:Object firstName="Christophe" lastName="Coenraets" phone="555-432-5678"/>
    </mx:ArrayCollection>
    <mx:Label text="Right click for copy/paste menu" color="white"/>
    <mx:FlexNativeMenu id="cMenu" labelField="label" itemClick="handleMenuClick(event.index)"/>

    <mx:DataGrid id="dg" dataProvider="{people}" itemRollOver="updateMenu(event.rowIndex)" itemRollOut="updateMenu(NaN)"/>

</mx:Module>