1 Reply Latest reply on Jul 9, 2012 4:11 PM by tiwari.vikash

How to attach actionListner to rich: column header

tiwari.vikash Jun 23, 2012 3:23 PM

Hi, i want to call an action when user clicks on header to sort data table.

<f:view id="userView">

<a4j:form id="userForm">

<rich:dataTable id="userTable" cellpadding="0" cellspacing="0"

width="700" border="0" rows="5" var="user" value="#{office.userList}">

<f:facet name="header">

<h:outputText value="Users" />

</f:facet>

<rich:column id="idcol" sortBy="#{user.id}">

<f:facet name="header">

<h:outputText id="idHeader" value="ID">

</h:outputText>

</f:facet>

<h:outputText value="#{user.id}"></h:outputText>

</rich:column>

<rich:column sortBy="#{user.name}">

<f:facet name="header">

<h:outputText value="Name" />

</f:facet>

<h:outputText value="#{user.name}">

</h:outputText>

</rich:column>

<f:facet name="footer">

<rich:datascroller id="tableScroller" scrollerListener="#{tableBackingBean.myListener}">

</rich:datascroller>

</f:facet>

</rich:dataTable>

</a4j:form>

</f:view>

If i add a4j:support

<h:outputText id="idHeader" value="ID">

<a4j:support event="onclick" actionListener="#{tableBackingBean.sortEvent}"/>

</h:outputText>

It doesnt work.

1. Re: How to attach actionListner to rich: column header

tiwari.vikash Jul 9, 2012 4:11 PM (in response to tiwari.vikash)

I removed sortby attribute and implemented custom sorting.

<f:facet name="header">
                                                  <a4j:commandLink id="idHeader" actionListener="#{officeTableBean.sort}" reRender="userTable">
                                                            <h:outputText value="ID" />
                                                            <h:panelGroup layout="block" styleClass="#{officeTableBean.columnOrderingMap['id']}"/>
                                                            <f:attribute name="sortField" value="id" />
                                                  </a4j:commandLink>
</f:facet>

I am using reflection to get data model of data table. is there a better way?

/**
           * Method to get data model of HtmlDataTable using reflection.
           *
           * @param dataTable
           * @return DataModel
           */
          @SuppressWarnings("unchecked")
          private <T> List<T> retrieveRecordList(HtmlDataTable dataTable){
                    List<T> recordList = Collections.emptyList();
                    try{
                              Method method = dataTable.getClass().getSuperclass().getSuperclass().getDeclaredMethod("getDataModel");
                              method.setAccessible(true);
                              DataModel dataModel = (DataModel) method.invoke(dataTable);
                              recordList = (List<T>) dataModel.getWrappedData();
                    } catch (SecurityException e) {
                              e.printStackTrace();
                    } catch (NoSuchMethodException e) {
                              e.printStackTrace();
                    } catch (IllegalArgumentException e) {
                              e.printStackTrace();
                    } catch (IllegalAccessException e) {
                              e.printStackTrace();
                    } catch (InvocationTargetException e) {
                              e.printStackTrace();
                    }
                    return recordList;
          }
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