我正在尝试从对话框更新文本字段。文本字段位于父组件中。但它没有发生。如果我在命令按钮的更新中给出文本字段的ID。我遇到了错误：javax.faces.FacesException：找不到从“tabView：lkpSltRec”引用的标识符“customerCode”的组件
因为它无法找到组件 id 。我已经使用了替代方案。我已经获取了隐藏字段。单击命令按钮后，隐藏字段会更新，并通过简单的 javascript 函数更新父组件的文本字段。javascript 函数是从对话框中命令按钮的 oncomplete 调用的。因为，根据项目要求，我必须仅通过 primefaces 来实现它，而不是通过 javascript 。请向我建议 primefaces 中的方法。下面是代码片段：
这里的 ecap:lookup 是自定义组件。
Selected Customer <p:inputText id="customerCode"
value="#{sixthTabBBean.customerName}" label="Selected Adddress"></p:inputText>
Selected Customer City <p:inputText id="selectedCity" value="#{sixthTabBBean.customerCity}" ></p:inputText>
<ecap:lookup lookupId="LOV0072" inputId="customerCode" clickStatus="city"
defaultDDValueIndex="0" title="CustomerCode"></ecap:lookup>
New LOV <ecap:lookup lookupId="LOV0092" inputId="customerCode" clickStatus="none"
defaultDDValueIndex="0" title="CustomerCode"></ecap:lookup>
City<p:inputText id="custCity" value="#{sixthTabBBean.customerCity}"
disabled="true" label="City"></p:inputText>
Selected Customer <p:inputText id="customerCode1"
value="#{sixthTabBBean.customerName}" label="Selected Adddress" ></p:inputText>
Selected Customer City <p:inputText id="selectedCity1" value="#{sixthTabBBean.customerCity}" ></p:inputText>
Selected Customer State <p:inputText id="selectedSate1" value="#{sixthTabBBean.customerState}" ></p:inputText>
<ecap:lookup lookupId="LOV0098" inputId="customerCode" clickStatus="state"
defaultDDValueIndex="0" title="CustomerCode"></ecap:lookup>
<p:dialog id="lkpDialog" widgetVar="lpDialogVar" header="Lookup"
modal="true" width="1000" height="600"
rendered="#{lookupSearch.popupRender}" >
<h:form rendered="#{lookupSearch.popupRender}" prependId="false">
<h:panelGrid cellpadding="10" id="diaFrmId">
<p:dataTable id="newfdt" var="flxSearch"
value="#{lookupSearch.lkpSearchCriteriaList}">
<p:column id="newwhc">
<f:facet name="header">
<h:outputLabel value="Search Fields"></h:outputLabel>
</f:facet>
<p:selectOneMenu styleClass="fdd180" id="newwdd"
value="#{flxSearch.searchCriterion.whereClause}">
<f:selectItems value="#{flxSearch.whrClausDropdown}" />
</p:selectOneMenu>
</p:column>
<p:column id="newcoc">
<f:facet name="header">
<h:outputLabel value="Conditions"></h:outputLabel>
</f:facet>
<p:selectOneMenu id="newco" styleClass="fdd95"
value="#{flxSearch.searchCriterion.operator}">
<f:selectItems id="newcriOperatorItms"
value="#{flxSearch.operatorDropdown}" />
</p:selectOneMenu>
</p:column>
<p:column id="newcic">
<f:facet name="header">
<h:outputLabel value="Value"></h:outputLabel>
</f:facet>
<p:inputText id="newcriInpNm"
rendered="#{!flxSearch.inputDate and !flxSearch.boolValue and !flxSearch.required}"
styleClass="285 ftb" deferChangeEvent="true"
value="#{flxSearch.searchCriterion.value}"
maxlength="#{flxSearch.maxLength}"
disabled="#{flxSearch.disableInput}" partialSubmit="true"
labelValue="#{flxSearch.searchCriterion.label}"
required="#{flxSearch.required}">
</p:inputText>
<p:inputText id="newcriInpM"
rendered="#{!flxSearch.inputDate and !flxSearch.boolValue and flxSearch.required }"
value="#{flxSearch.searchCriterion.value}"
maxlength="#{flxSearch.maxLength}"
disabled="#{flxSearch.disableInput}"
labelValue="#{flxSearch.searchCriterion.label}"
required="#{flxSearch.required}">
</p:inputText>
<p:selectOneMenu styleClass="fdd" id="newbldd"
value="#{flxSearch.searchCriterion.value}"
disabled="#{flxSearch.disableInput}"
rendered="#{flxSearch.boolValue }">
<f:selectItems value="#{flxSearch.booleanDropdown}" />
</p:selectOneMenu>
<p:calendar id="newcriDtNm" size="9"
rendered="#{flxSearch.inputDate and !flxSearch.boolValue and !flxSearch.required }"
disabled="#{flxSearch.disableInput}" showOn="button"
value="#{flxSearch.searchCriterion.value}"
labelValue="#{flxSearch.searchCriterion.label}">
</p:calendar>
<p:calendar id="newcriDtM" size="9"
rendered="#{flxSearch.inputDate and !flxSearch.boolValue and flxSearch.required }"
disabled="#{flxSearch.disableInput}"
value="#{flxSearch.searchCriterion.value}"
enableChangeDetector="false" partialSubmit="true"
labelValue="#{flxSearch.searchCriterion.label}"
required="#{flxSearch.required}" showOn="button">
</p:calendar>
</p:column>
</p:dataTable>
<!-- hidden text used to update values in the parent component -->
<p:inputText type="hidden" id="hiddencustomerCode"
value="#{sixthTabBBean.customerName}" ></p:inputText>
<p:inputText type="hidden" id="hiddencustCity"
value="#{sixthTabBBean.customerCity}" ></p:inputText>
<p:inputText type="hidden" id="hiddencustState"
value="#{sixthTabBBean.customerState}" ></p:inputText>
<p:fieldset legend="Combined By">
<h:panelGrid columns="2" cellpadding="10">
<p:selectOneRadio id="newSlctDrk"
valueChangeListener="#{lookupSearch.getSelectedLogOpr}"
value="#{lookupSearch.selLogOpr}"
title="Combine all search criteria with AND or OR">
<f:selectItems id="newSlctDrkItms"
value="#{lookupSearch.logicalOperators}" />
</p:selectOneRadio>
</h:panelGrid>
</p:fieldset>
<h:panelGrid columns="3">
<p:commandButton value="Find" id="lkpfndDg" update="resultFldSet"
actionListener="#{lookupSearch.search}">
</p:commandButton>
<p:commandButton value="Clear" id="lkpClearDg"
actionListener="#{lookupSearch.clear}" />
</h:panelGrid>
<p:fieldset legend="Result" id="resultFldSet">
<p:dataTable binding="#{lookupSearch.lkpResultDataTable}"
value="#{lookupSearch.searchResultsForPage}"></p:dataTable>
</p:fieldset>
<p:commandButton value="Select" id="lkpSltRec" update="customerCode"
oncomplete="lpDialogVar.hide();insertSelectedValue();"
actionListener="#{lookupSearch.selectValue}" />
</h:panelGrid>
</h:form>
</p:dialog>
</h:panelGrid>
这里的 ecap:lookup 是自定义组件。
最后，我得到了解决方案。我遇到的异常是因为 form 标签。从对话框触发的 ajax 事件无法找到表单之外的组件。在这种情况下，请使用：
:#{p:component('componentId')}
在这里，它不仅会在表单内搜索 id，还会在表单外搜索 id。
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