我想要做的是每次复选（取消）复选框时更新orderList。
我的组件无法访问面部错误。该组件位于form内id="form"
14:33:29,614 SEVERE [javax.enterprise.resource.webcontainer.jsf.application] (default task-9) Error Rendering View[/pages/view.xhtml]: javax.faces.FacesException: Cannot find component with expression ":form:orderList" referenced from "form:j_idt34:j_idt88:j_idt96:0:j_idt100".
我尝试了多种解决方案，包括：:form，form，:orderList，orderList，form:panelGridChoice:orderList，:panelGridChoice:orderList，{{1} }，:form:panelGridChoice:orderList
这是我的观点
:form:orderList <composite:implementation>
<h:outputStylesheet library="css" name="form.css" />
<h:outputScript>
replaceMedia();
</h:outputScript>
<ui:decorate template="answerDecorator.xhtml">
<ui:define name="additionalForms">
<h:outputText value="#{cc.attrs.question.additionalExplanation}" styleClass="text-normal" escape="false" />
</ui:define>
<ui:define name="component">
<p:panelGrid id="panelGridChoice" columns="1" cellpadding="0" styleClass="inline" columnClasses="" >
<p:dataTable var="answer" value="#{cc.attrs.question.possibleAnswers}">
<p:column headerText="#{msg['survey.question.chooseAnswerList']}" styleClass="thirty-percent">
<h:outputText value="#{answer.text}" />
</p:column>
<p:column headerText="#{msg['survey.question.chooseAnswer']}" styleClass="ten2-percent" >
<p:selectBooleanCheckbox value="#{answer.checked}" >
<p:ajax event="change" process="@this" update=":form:orderList" listener="#{cc.attrs.question.setCheckedAnswers}" />
</p:selectBooleanCheckbox>
</p:column>
</p:dataTable>
<p:orderList id="orderList" value="#{cc.attrs.question.checkedAnswers2Order}" var="answer" itemLabel="#{answer.text}"
converter="entityConverter" itemValue="#{answer}" controlsLocation="left" >
<f:facet name="caption">#{msg['survey.default.makeOrder']}</f:facet>
</p:orderList>
</p:panelGrid>
</ui:define>
</ui:decorate>
</composite:implementation>
定义为
answerDecorator.xhtml
答案 0 :(得分：1)
这可能非常烦人，所以在这种情况下我通常会按照样式类来定位组件。尝试将styleClass="orderList"添加到<p:orderList>，并使用@(.orderList)定位。