我在primefaces5和水平条形图中有滑块的数据表。通过滑动图表中的条将移动

Question

我在primefaces5和水平条形图中有滑块的数据表。通过移动滑块，图表中的条形将移动。这是正常的。现在的问题是数据表是否有多个页面。如何根据当前页面获取图表。

     <h:panelGrid columns="2" columnClasses="label, value" style="width:100%">
     <h:panelGrid columns="1" columnClasses="label, value" style="width:40%">
       <p:dataTable value="#{improvementManageBean.lazyModel}" var="entryList" varStatus="status" rows="10" paginator="true"    paginatorTemplate="{RowsPerPageDropdown}  {CurrentPageReport}  {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink}  "
                        rowsPerPageTemplate="5,10,15" style="margin-bottom:20px" id="SCS2_tbl"  widgetVar="pan2Tbl" lazy="true">


           <p:column style="width:200px">
                <h:outputText value="#{entryList.sourceName}: #{entryList.sourceType}"/>
            </p:column>
            <p:column style="width:200px">   
                <p:slider for="input2"  style="width:200px" id="srd2" minValue="" maxValue="454544">
                    <p:ajax event="slideEnd"   listener="#{improvementManageBean.onSlideEnd2}" update=":form:scope2Chrt,:form:panDtl"/>
                </p:slider>
            </p:column>
            <p:column style="width:80px">
                <p:inputText id="input2" value="#{entryList.co2Emission}" style="width:40px"/>
            </p:column>
    <p:ajax event="page"  listener="#{improvementManageBean.update}" />
     </p:dataTable>
</h:panelGrid>
 <h:panelGrid columns="1" style="width:60%; height:100%;" >
            <div>
                <p:barChart id="scope2Chrt" value="#{improvementManageBean.horizontalBarChartScope2}"  orientation="horizontal"
                     style="width:700px;height:900px;" animate="false" xaxisAngle="-30"
                     widgetVar="chartScp2" />
            </div>
 </h:panelGrid>
</h:panelGrid>