I am trying to create a query in Microsoft Access using the multi selection
function on the list box to filter the data in a query. When I refer back to
the list box in the query it does not return any information. When I reset
the parameters of the list back to none in the mutli select property it works
however it does not when I have it set to Extended.

What can I do to have this work?

A query cannot directly read multiple selections from a list box.

It is possible to write code that loops through the ItemsSelected collection
of the list box, to build a Filter string to use in a form or report. Here's
an example:
Use a multi-select list box to filter a report
at:
http://allenbrowne.com/ser-50.html

--
Allen Browne - Microsoft MVP. Perth, Western Australia
Tips for Access users - http://allenbrowne.com/tips.html
Reply to group, rather than allenbrowne at mvps dot org.

"John N" <John (E-Mail Removed)> wrote in message
news:30004F16-AD04-4657-B898-(E-Mail Removed)...
>I am trying to create a query in Microsoft Access using the multi selection
> function on the list box to filter the data in a query. When I refer back
> to
> the list box in the query it does not return any information. When I
> reset
> the parameters of the list back to none in the mutli select property it
> works
> however it does not when I have it set to Extended.
>
> What can I do to have this work?