Hi guys,
I created a simple list and after i wanted to export it to excel i faced this exception

18:30:48,238 FATAL [application] org.jboss.seam.excel.ExcelWorkbookException:

 A worksheet's value must be an Iterable, DataModel or Query

javax.faces.el.EvaluationException: org.jboss.seam.excel.ExcelWorkbookException: 

A worksheet's value must be an Iterable, DataModel or Query

Code

public List<Movie> movies;
public String doSearch() {
          
          
          FullTextQuery query;
          try {
               query = searchQuery(searchQuery);
               movies = query.getResultList();
          } catch (ParseException pe) {
               return null;
          }
          
          //System.out.println(query.getResultSize());
          
          return null;

     }

.xhtml

<h:form id="excelExportMovie">
<rich:dataTable id="movieTable">
..
</rich:dataTeble>
<h:commandLink action="#{excelExporter.export('excelExportMovie:movieTable')}" >
               <h:graphicImage value="/img/spreadsheet.png" />
          </h:commandLink>
</h:form>

any help appreciated
Thanks in advanced