Flex 4 - Datagrid add checkbox to a column

Question

Hello all.
I am trying to add a checkbox to a datagrid column, so that i can use it to delete a record from the array.  My datagrid is as follows
    <mx:DataGrid x="10" y="40" width="903" dataProvider="{questionsArr}" sortableColumns="false" draggableColumns="false" editable="true">
        <mx:columns>
            <mx:DataGridColumn headerText="No." dataField="Number" width="100" editable="false"/>
            <mx:DataGridColumn headerText="Question" dataField="Question" />
            <mx:DataGridColumn headerText="Delete"  width="100" />
        </mx:columns>
    </mx:DataGrid>
The user inputs questions into the array via a textinput box.
But what i want to do is add a checkbox to the "Delete" column.  If anyone could help me with this that would be great !

Answer 1

Ok, thanks both for your answers.
I have now gone about doing it the following way:
    <mx:DataGrid x="10" y="40" width="903" dataProvider="{questionsArr}" sortableColumns="false" draggableColumns="false" editable="true">
        <mx:columns>
            <mx:DataGridColumn headerText="No." dataField="Number" width="100" editable="false"/>
            <mx:DataGridColumn headerText="Question" dataField="Question" />
            <mx:DataGridColumn headerText="Delete"  width="100">
                    <mx:itemRenderer>
                        <fx:Component>
                            <mx:HBox horizontalAlign="center" verticalAlign="middle">
                                <s:CheckBox/>
                            </mx:HBox>
                        </fx:Component>
                    </mx:itemRenderer>
            </mx:DataGridColumn>
        </mx:columns>
    </mx:DataGrid>
It works fine, as i add a question, a checkbox gets added to the Delete column.  Alls great.
But when i come to click on the checkbox, the following text gets displayed [object Object]
Then when i click away from the checkbox the checkbox reappears.  With it either selected or unselected depending on what value it should be.
Is there anyway so that it dosent display the [object Object] ?