function onclick(event : any) do
"ID of selected customer := event.targetID";
var t := this;
var selCustomer := first(select Customer where Id = event.targetID);
debug("onclick");
if event.targetColumnCaption like "checked" then
selCustomer.(Checked := not Checked);
true
else
if event.targetColumnNum = 0 then
true
else
false
end
end
end;
select Customer