Clearing select list

Andy Knipp

TS 6.7.1 Win 2003

I have a select list I want to clear, it is defined as required and not multi select.

If I run

IWDatacapture.getItem("/Root/List").setValue(7);
IWDatacapture.redraw();

it selects that one fine. However if I run:

IWDatacapture.getItem("/Root/List").setValue();
IWDatacapture.redraw()

Nothing happens, the previous selection is still set. Putting a 0 in there selects the first one.

I am assuming it is a bug, but can anyone point an obvious mistake ? I guess I wil need to read the options and reset them (pain).