How to create a DataGrid in Flex?

Question

Can someone tell me how I can create a nested row in a flex datagrid, like the diagram below?

Answer 1

Just use AdvancedDataGrid control. See description and API documentation for it.

Answer 2

<mx:AdvancedDataGrid id="mainADG"  >
<mx:groupedColumns>
    <mx:AdvancedDataGridColumn />
    <mx:AdvancedDataGridColumn />
    <mx:AdvancedDataGridColumn />

    <mx:AdvancedDataGridColumnGroup >
        <mx:AdvancedDataGridColumn />
        <mx:AdvancedDataGridColumn />
        <mx:AdvancedDataGridColumn />
        <mx:AdvancedDataGridColumn />
    </mx:AdvancedDataGridColumnGroup>

</mx:groupedColumns></mx:AdvancedDataGrid>