SummaryRow in p:dataTable无法正常工作

Question

我试图在我的dataTable上显示一个总值,我的代码类似于primefaces展示DataTable - SummaryRow但仍然无效.

<p:dataTable id="dtCaixa" var="list" value="#{caixaMB.list}" paginator="true" rows="7" 
                                 paginatorPosition="bottom" rowsPerPageTemplate="10,15,20" liveScroll="true"
                                 paginatorAlwaysVisible="false"  emptyMessage="Nenhuma entrada!" liveResize="true">                                                        


                        <p:column headerText="Nome" sortBy="#{list.produtoFK.nome}" style="width:15%;">
                            <h:outputText value="#{list.produtoFK.nome}" />
                        </p:column>

                        <p:column headerText="Funcionário" sortBy="#{list.funcionarioFK.nome}">
                            <h:outputText value="#{list.funcionarioFK.nome}" />
                        </p:column> 

                        <p:column headerText="Quantidade" sortBy="#{list.quantidade}">
                            <h:outputText value="#{list.quantidade}" />
                        </p:column>

                        <p:column headerText="Preço" >                                
                            <h:outputText value="#{list.produtoFK.preco}" rendered="#{not empty list.produtoFK}">
                                <f:convertNumber pattern="R$ #0.00" locale="pt_BR"/>
                            </h:outputText>
                        </p:column>

                        <p:column headerText="Total" sortBy="#{list.total}" >
                            <h:outputText value="#{list.total}" >
                                <f:convertNumber pattern="R$ #0.00" locale="pt_BR"/>
                            </h:outputText>
                        </p:column>

                        <p:column headerText="Remover" class="centered">
                            <p:commandButton icon="ui-icon-trash" title="excluir"  onclick="PF('confirmaExclusao').show();">
                                <f:setPropertyActionListener target="#{caixaMB.itemSelecionado}" value="#{list}" />
                            </p:commandButton>                                    
                        </p:column>

                        <p:summaryRow>
                            <p:column colspan="3" style="text-align:right">
                                <h:outputText value="Total:" />
                            </p:column>
                            <p:column>
                                <h:outputText value="#{caixaMB.total}">                                        
                                </h:outputText>
                            </p:column>
                        </p:summaryRow>

                    </p:dataTable>

有没有人知道为什么会这样？

Answer 1

如果要使用summaryRow,则需要使用至少一列对dataTable进行排序.检查Primefaces文档.

例如,将属性sortBy="#{myList.myOrderValue}"放在<p:datatable>标签上.