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我試圖從對話框中更新文本字段。文本字段位於父組件中。但沒有發生。如果我在更新命令按鈕時給出文本字段的ID。我遇到的錯誤： javax.faces.FacesException：無法找到標識「customerCode」組件從「TabView的：lkpSltRec」引用Primefaces：對話框隱藏時不更新文本字段
既然是無法找到組件的id。我已經使用了替代方案。我點了隱藏字段。單擊命令按鈕後，隱藏字段被更新，並通過簡單的JavaScript函數更新父組件的文本字段。在對話框的命令按鈕的oncomplete中調用javascript函數。因爲，根據項目要求，我必須通過primefaces而不是通過javascript來實現它。 Plz，建議我在primefaces中的方法。下面的代碼片段：
這裏ECAP：查找是自定義組件。
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>
這裏ecap：查找是自定義組件。
_如果我在命令按鈕的更新中給出文本字段的ID。我遇到了錯誤：_你是如何引用'ID'的？如果你像這樣'update =「customerCode」'那麼它就不會工作，因爲你的'commandButton'在另一個'form'中。嘗試以這種方式引用它'update =「：customerCode」'（**：** added），所以你實際上跳到表單之外並搜索'ID =「customerCode」'。另外我假設你沒有用'form'包裝'inputText'因爲你的自定義組件需要，否則它們不會被提交。 – Fallup