jsf - Previous pagination not working - Extended Data Table component -


i have following code:

<h:body> <h:form>     <h:panelgrid columns="1" styleclass="er">         <h:panelgrid columns="2" styleclass="benutzer">         angemeldet als <h:outputlabel value="#{logincontroller.email}" />         </h:panelgrid>         <f:facet name="header">             <h:outputtext value="Übersicht"/>         </f:facet>         <rich:extendeddatatable value="#{maincontroller.bishererfasst}"             var="erfasst" style="table-layout:fixed;" rows="5" id="table" styleclass="table" rowclasses="odd, even">             <f:facet name="header">bisher erfasst</f:facet>             <rich:column>                 <f:facet name="header">                     <h:outputtext value="id" />                 </f:facet>                 <h:outputlabel value="#{erfasst.id}" />             </rich:column>             <rich:column>                 <f:facet name="header">                     <h:outputtext value="nummer" />                 </f:facet>                 <h:outputlabel value="#{erfasst.nummer}" />             </rich:column>             <rich:column>                 <f:facet name="header">                     <h:outputtext value="rechtsform" />                 </f:facet>                 <h:outputlabel value="#{erfasst.rechtsform}" />             </rich:column>             <rich:column>                 <f:facet name="header">                     <h:outputtext value="erfasser" />                 </f:facet>                 <h:outputlabel value="#{erfasst.erfasser}" />             </rich:column>             <rich:column sortby="#{erfasst.datum}" sortorder="ascending">                 <f:facet name="header">                     <h:outputtext value="datum" />                 </f:facet>                 <rich:calendar value="#{erfasst.datum}" datepattern="dd.mm.yyyy" />             </rich:column>             <rich:column>                 <f:facet name="header">Ändern</f:facet>                 <h:commandbutton value="ändern"                     action="#{maincontroller.aendern(erfasst)}" />             </rich:column>             <rich:column>                 <f:facet name="header">löschen</f:facet>                 <h:commandbutton value="löschen"                     action="#{maincontroller.loeschen(erfasst)}" />             </rich:column>         </rich:extendeddatatable>                    <h:form>         <h:panelgrid columns="2">                            <rich:datascroller for="table" maxpages="5" faststep="3" />             <h:panelgroup />             <h:commandbutton value="neu" action="#{maincontroller.neu}"             styleclass="neubutton" />         </h:panelgrid>         </h:form>     </h:panelgrid> </h:form>

i datascroller work when have more 5 entries in table, in case the previous button doesen't work, have used rich:datatable problem remained same. please me this.


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