Putting a combobox in an advanceddatagrid

Question

I know that I was able to do this in Flex 3, but for some reason I keep getting errors in Flex 4 by trying to put a ComboBox into an advancedDataGrid. I basically want the datagrid to be completely independent of the list of objects that are in the datagrids dataProvider.
Right now I have something that looks like this:
<ns:XX_DataGrid id="serversDataGrid" left="3" right="3" bottom="4"  allowMultipleSelection="false" selectable="false" dataProvider="{dModel.serversSelectedForDeployment}">
                <ns:groupedColumns>
                    <ns:XX_DataGridColumn headerText="{l.Servers_ServiceTag}" dataField="SvcTag" width="118" sortCompareFunction="onSvcTagSort"/>
                    <ns:XX_DataGridColumn headerText="{l.Servers_Model}" dataField="Model" width="110" sortCompareFunction="onModelSort"/>
                    <mx:XX_DataGridColumn headerText="{l.Profile}"
                            itemRenderer="com.dell.pg.spectre.components.itemRenderers.ComboBoxItemRenderer"
                             />
                </ns:groupedColumns>
            </ns:XX_DataGrid>
The item renderer looks like this:
<?xml version="1.0" encoding="utf-8"?>
<s:MXDataGridItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009"
                xmlns:s="library://ns.adobe.com/flex/spark"
                xmlns:mx="library://ns.adobe.com/flex/mx"
                autoDrawBackground="true">
    <s:Label text="{data}"/>
</s:MXDataGridItemRenderer>
I've tried this several ways. Anyone know how to get this to work?

Answer 1

Your renderer should have a combobox instead of the label.
<?xml version="1.0" encoding="utf-8"?>
<s:MXDataGridItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009"
                xmlns:s="library://ns.adobe.com/flex/spark"
                xmlns:mx="library://ns.adobe.com/flex/mx"
                autoDrawBackground="true">
   <s:Label text="{data}"/> - here you need the combobox and will have to override the set data method.
</s:MXDataGridItemRenderer>