Flex - Getting values from custom item renderers in DataGridColumns

[kamcknig]

I have a DataGrid set up like so:

        <mx:DataGrid id="ticketListDataGrid"
                dataProvider="{_ticketList}">
                <mx:columns>
                        <mx:DataGridColumn width="220"
                                dataField="@package_name"
                                headerText="Package Name"
                                sortable="false" />

                        <mx:DataGridColumn width="166"
                                dataField="@barcode"
                                headerText="Ticket Barcode"
                                sortable="false" />

                        <mx:DataGridColumn width="100"
                                headerText="Ticket Blocked"
                                sortable="false"
                                itemRenderer="foo.bar.CustomCheckBox" />

                        <mx:DataGridColumn width="210"
                                headerText="Reason"
                                sortable="false"
                                itemRenderer="foo.bar.CustomComboBox" />
                </mx:columns>
        </mx:DataGrid>

On submit I'd like to read the values of each CustomCheckBox and
CustomComboBox. What is the easiest way to get those values? 

Thanks!



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