[flexcoders] toggling checkbox's enabled field in datagrid

[carriecharp]

I've inherited some code to update and I could use some help. 

I have an Advanced Data Grid where one column uses a custom checkbox component. 
It's very simple with the checkbox's selected field controlled by column's 
datafield, which is a Boolean named 'fired'. 

I want to have the checkbox enabled only in certain situations, dependent upon 
a second field , an int called 'type'. Basically, enabled = (type!=0).

'type' is a field in the grid's dataprovider and I want to set the enabled 
field in the declaration below but I can't figure out how to reference the 
'type' field.

Any guidance is appreciated!
Thanks, Carrie

         <mx:Component id="cbEditor">
                <mx:HBox horizontalAlign="center" backgroundAlpha="1" 
width="100%">
                        <mx:Script>
                                <![CDATA[
                                        public var selected:Boolean;
                                        
                                ]]>
                        </mx:Script>
                        <mx:CheckBox id="cb"  selected="{data.fired}" 
click="selected=data.fired=cb.selected;" width="15"/>
                </mx:HBox>
         </mx:Component>