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有誰知道如何對齊這個selectOneMenu？ 我在其他頁面有同樣的問題。 現在我只是發佈它，因爲stackoverflow說：它看起來像你的文章主要是代碼;請添加更多的數據。如何對齊這個selectOneMenu
enter image description here 代碼：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.org/ui"
xmlns:namespace="http://java.sun.com/jsf/composite/namespace"
xmlns:sec="http://www.springframework.org/security/facelets/tags">
<!--
Replace path to template, title, header and body
with actual data.
-->
<ui:composition template="Template.xhtml">
<ui:define name="content">
<div class="content_wrapper">
<div class="content">
<sec:ifAnyGranted roles="ROLE_ADMINISTRADOR,ROLE_USUARIO,ROLE_GERENCIADOR">
<h:form id="formGrid">
Data Inicial: <p:calendar id="popup" value="#{relatorioHistoricoMB.dataInicial}" />
Data Final: <p:calendar id="popup2" value="#{relatorioHistoricoMB.dataFinal}" />
<p:selectOneMenu value="#{relatorioHistoricoMB.reservatorio.idReservatorio}"
style="width:170px" required="true"
requiredMessage="Selecione algum.">
<f:selectItem itemLabel="Selecione o Reservatório" itemValue="0" />
<f:selectItems value="#{relatorioHistoricoMB.listaReservatorio}"
var="reservatorio" itemLabel="#{reservatorio.nomeReservatorio}"
itemValue="#{reservatorio.idReservatorio}" />
</p:selectOneMenu>
<p:commandButton value="Gerar relatório" update="formGrid"
actionListener="#{relatorioHistoricoMB.executar}" />
<p:dataTable id="Grid" var="historico"
value="#{HistoricoBean.listaHistorico}"
selection="#{HistoricoBean.historico}" selectionMode="single"
rowKey="#{historico.idHistorico}" paginator="true" rows="5">
<f:facet name="header">
<h:outputText value="Historico" />
</f:facet>
<p:column headerText="Reservatorio">
<f:facet name="header">
<h:outputText value="Reservatorio" />
</f:facet>
<h:outputText value="#{historico.reservatorio.nomeReservatorio}" />
</p:column>
<p:column headerText="Bomba">
<f:facet name="header">
<h:outputText value="Bomba" />
</f:facet>
<h:outputText value="#{historico.bomba.nomeBomba}" />
</p:column>
<p:column headerText="Data">
<f:facet name="header">
<h:outputText value="Data" />
</f:facet>
<h:outputText value="#{historico.dataHistorico}" />
</p:column>
<p:column headerText="Evento">
<f:facet name="header">
<h:outputText value="Evento" />
</f:facet>
<h:outputText value="#{historico.novoStatusHistorico}" />
</p:column>
</p:dataTable>
</h:form>
</sec:ifAnyGranted>
</div>
</div>
</ui:define>
</ui:composition>
</html>
整個數據表無關是（所有選擇都在外面）？然後請刪除問題中的代碼。所有隻是噪音。 – Kukeltje