How to assign click to datagrid with ActionScript??

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Is there a way to assign a click property to a datagrid in actionscript?

I have a datagrid generated fully within actionscript with id='dg'
Because it is created wholly within action script and not mxml, i cannot use the click mxml property of the datagrid.

I have tried:

dg.click=doFunction();

and it is telling me this is an undefined property 'click'

I am trying to call a function on mouse click within this datagrid with actionscript3.

Thanks
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Got it sorted
dg.addEventListener(MouseEvent.CLICK,doFunction);