title: filter a query based on multiple list boxes in a form
body: <p>I have an Access database with two tables: "contacts" and "country"
  These contain a number of fields in each.</p>
  
  <p>I have a query, "Filter", that brings these two tables together.</p>
  
  <p>I want to create a form with as many list boxes as there are fields in the query. A user can open the form and select multiple data from each list box - the row sources are tied back to the two tables above. Then on the click of a button the query would be displayed and filters would be applied dependent on the users selections in the list boxes. If nothing is selected then the query is displayed without filters. Similarly the user is not required to make selections from all the list boxes.</p>
  
  <p>Any help would be much appreciated. I have lifted some code from other websites which has allowed me to apply filters for a single list box. The difficulty is expanding for multiple list boxes. Is this an absurd request??</p>
  
  <p>PS I can post my existing code however I believe that this is now a 'red herring' and would be best starting fresh.</p>