How to add event to button cell

Hi,

I am creating a button cell like this

ButtonCell PreviewButton= new ButtonCell();
Column <Auction,String> Preview= new Column
<Auction,String>(PreviewButton){
public String getValue(Auction object) {
// TODO Auto-generated method stub

return "Preview";
}};

but how to add event a click handler to this button

--
You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group.
To post to this group, send email to google-web-toolkit@googlegroups.com.
To unsubscribe from this group, send email to google-web-toolkit+unsubscribe@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.