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j2ee 웹 응용 프로그램 (jsf2 및 primefaces)에서 작업하고 있는데 하나의 메뉴에서 선택한 항목에 따라 양식을 표시하는 방법이 궁금합니다. 시도했지만 작동하지 않았습니다.selectOneMenu의 항목을 선택할 때 양식 표시
<h:form id="global">
<p:panel header="Association">
...
<p:outputLabel value="Travel Class" />
<p:selectOneMenu id="associationType" style="width: 230px" value="#{associationMBean.travelClass}">
<f:selectItem itemLabel="Select one" itemValue="" />
<f:selectItem itemLabel="Seminar" itemValue="Seminar" />
<f:selectItem itemLabel="Honeymoon" itemValue="Honeymoon" />
<f:selectItem itemLabel="Organized Trip" itemValue="Organized Trip" />
<p:ajax update=":hidePanel"/>
</p:selectOneMenu>
</p:panel>
</h:form>
<p:panel id="hidePanel" style="margin-top: 20px; font-size: 14px; border: 0;display: none " header="Remarks (Optional)" rendered="#{associationMBean.travelClass eq Seminar}">
<h:form>
<p:inputTextarea style="width: 100% ; height: 100px" value="#{associationMBean.description}" ></p:inputTextarea>
</h:form>
</p:panel>
업데이트
<html
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui">
<h:head>
<title>Visa Application-Thailand</title>
</h:head>
<h:body>
<div align="center">
<div>
<img class="logo" src="images/banner.jpg"/>
</div>
<p:panel style="width: 61%; border-color: indianred; border-width: 2px; margin-top: 10px">
<h:form id="global">
<p:panel style="margin-top: 20px; font-size: 14px ; border: 0" header="Association">
<table border="0" >
<tbody >
<tr>
<td align="right">
<p:outputLabel value="Association Type" />
</td >
<td align="left">
<p:selectOneMenu id="selectmenu" style="width: 230px" value="#{associationMBean.type}">
<f:selectItem itemLabel="Select a Class" itemValue="" />
<f:selectItem itemLabel="Seminar" itemValue="Seminar" />
<f:selectItem itemLabel="Organized Trip" itemValue="Organized Trip" />
<f:selectItem itemLabel="Honeymoon" itemValue="Honeymoon" />
<p:ajax update=":hidePanel"/>
</p:selectOneMenu>
</td>
</tr>
<tr>
<td align="right">
<p:outputLabel value="Date of Departure" for="departure" />
</td>
<td align="left">
<p:calendar value="#{associationMBean.departure}" showOn="button" pattern="dd/MM/yy" style="width: 250px" id="departure"></p:calendar>
<p:watermark value="01/01/2014" for="departure"/>
</td>
</tr>
<tr>
<td align="right">
<p:outputLabel value="Date of Arrival" for="arrival" />
</td>
<td align="left">
<p:calendar value="#{associationMBean.arrival}" showOn="button" pattern="dd/MM/yy" style="width: 250px" id="arrival"></p:calendar>
<p:watermark value="01/01/2014" for="arrival"/>
</td>
</tr>
<tr>
<td align="right">
<p:outputLabel value="Travel Agency " for="travelAgency"/>
</td>
<td align="left">
<p:inputText id="travelAgency" value="#{associationMBean.travelAgency}" style="width: 220px"></p:inputText>
</td>
</tr>
<tr>
<td align="right">
<p:outputLabel value="Airline " for="airline"/>
</td>
<td align="left">
<p:inputText id="airline" value="#{associationMBean.airline}" style="width: 220px"></p:inputText>
</td>
</tr>
<tr>
<td align="right">
<p:outputLabel value="Travel Class" />
</td >
<td align="left">
<p:selectOneMenu id="selectclass" style="width: 230px" value="#{associationMBean.travelClass}">
<f:selectItem itemLabel="Select a Class" itemValue="" />
<f:selectItems value="#{associationMBean.allClasses}" />
<!-- <p:ajax update=":hidePanel"/> !-->
</p:selectOneMenu>
</td>
</tr>
<tr >
<td align="right">
<p:outputLabel value="Hotels " for="hotels" />
</td>
<td align="left">
<p:inputTextarea id="hotels" value="#{associationMBean.hotels}" style="width: 220px"/>
</td>
</tr>
</tbody>
</table>
</p:panel>
<div align="right" style="margin-top: 20px ">
<p:commandButton type="reset" value="Reset" style="font-size: 14px;"/>
<p:commandButton value="Save" ajax="false" styleClass="ui-priority-primary" style="font-size: 14px;" action="#{associationMBean.addAssociation()}" />
</div>
</h:form>
<p:panel id="hidePanel" style="margin-top: 20px; font-size: 14px; border: 0;display: none " header="Remarks (Optional)" >
<h:form rendered="#{associationMBean.type == 'Seminar'}" >
<p:inputTextarea style="width: 100% ; height: 100px" value="#{visaMBean.description}" ></p:inputTextarea>
</h:form>
</p:panel>
</p:panel>
</div>
</h:body>
</html>
위의 코드를 일부 업데이트 <h:form rendered="#{associationMBean.type == 'Seminar'}" >를 추가 한 후 전체 HTML 코드입니다하지만 난이 selectOneMenu에서 세미나를 선택할 때 여전히 hidePane를 표시 할 수 없습니다. 내가 무엇을 놓치고 있는지 당신이 생각해 봤나 ?? ??
hidePanel을 outputPanel로 둘러싸고이 outputPanel을 업데이트하십시오. –
세미나를 선택하면 같은 문제가 발생합니다. –
레오 자오 (Leo Zhao)의 조언이 해결책입니다. 렌더링 된 속성이 false로 평가 되었기 때문에 패널이 HTML 페이지가 없기 때문에, 존재하는 dom 요소 만 업데이트 할 수 있습니다 HTML 페이지. – landal79