更新嵌套控件中的PrimeFaces数据表？

Question

我对JSF和PrimeFaces很陌生。 我正在尝试在嵌套元素中更新数据表。 到目前为止，我尝试过的所有操作都破坏了页面或没有成功。 这是标记：

 <h:form id="form2">
        <p:growl id="msgs" sticky="true" showDetail="true" autoUpdate="true"  />
        <ui:insert name="content">
                <ezcomp:header />
                <p:layout>
                    <p:layoutUnit position="west" >
                        <ezcomp:navigation />
                    </p:layoutUnit>
                    <p:layoutUnit position="center" >
                        <p:wizard widgetVar="wiz"> 
                            <p:tab id="flightInformation" title="General">
                                <p:panel header="Flight Information">
                                    <p:messages />
                                    <h:panelGrid columns="2" columnClasses="label, value">

                                        <p:outputLabel>Aircraft Name: </p:outputLabel>
                                        <p:inputText value="#{flightWizard.flightMB.flight.aircraftName}" required="true" label="Aircraft Name"></p:inputText>
                                        <p:outputLabel>Airline Name: </p:outputLabel>
                                        <p:inputText value="#{flightWizard.flightMB.flight.airlineName}" required="true" label="Airline Name"></p:inputText>
                                        <p:outputLabel>Flight Number: </p:outputLabel>
                                        <p:inputText value="#{flightWizard.flightMB.flight.flightNumber}" required="true" label="Flight Number"></p:inputText>
                                        <p:outputLabel>Duration: </p:outputLabel>
                                        <p:inputMask value="#{flightWizard.flightMB.flight.flightTime}" mask="99:99" placeholder="HH:MM" required="true" label="Flight Duration"></p:inputMask>
                                        <p:outputLabel>Base Price: </p:outputLabel>
                                        <p:inputText value="#{flightWizard.flightMB.flight.basePrice}" required="true" label="Base Price"></p:inputText> 
                                    </h:panelGrid>
                                </p:panel>

                            </p:tab>
                            <p:tab id="arrivalInfo" title="Departure And Arrival">
                                <p:panel header="Departure And Arrival Information">
                                    <p:messages />
                                    <h:panelGrid columns="2" columnClasses="label, value">
                                        <p:outputLabel>Departure Airport: </p:outputLabel>
                                        <p:inputText value="#{flightWizard.flightMB.flight.departureAirport}" required="true" label="Departure Airport"></p:inputText>
                                        <p:outputLabel>Departure Airport Code: </p:outputLabel>
                                        <p:inputText value="#{flightWizard.flightMB.flight.departureAirportCode}" required="true" maxlength="3" label="Departure Airport Code"></p:inputText>
                                        <p:outputLabel>Departure Date and Time: </p:outputLabel>
                                        <p:calendar value="#{flightWizard.flightMB.flight.departure}" pattern="dd.MM.yyyy HH:mm" required="true" label="Departure Date and Time" />
                                        <p:outputLabel>Arrival Airport: </p:outputLabel>
                                        <p:inputText value="#{flightWizard.flightMB.flight.arrivalAirport}" required="true" label="Arrival Airport"></p:inputText>
                                        <p:outputLabel>Arrival Airport Code: </p:outputLabel>
                                        <p:inputText value="#{flightWizard.flightMB.flight.arrivalAirportCode}" required="true" maxlength="3" label="Arrival Airport Code"></p:inputText>
                                        <p:outputLabel>Arrival Date and Time: </p:outputLabel>
                                        <p:calendar value="#{flightWizard.flightMB.flight.arrival}" pattern="dd.MM.yyyy HH:mm" required="true" label="Arrival Date and Time"/>


                                    </h:panelGrid>
                                </p:panel>
                            </p:tab>
                            <p:tab id="seatingInfo" title="Seating">
                                <p:panel header="Seating Information">
                                    <p:messages />
                                    <h:panelGrid columns="2" columnClasses="label, value">
                                        <p:outputLabel>Economy</p:outputLabel>
                                        <p:spinner value="#{flightWizard.flightMB.flight.economyClassSeats}" required="true" label="Total Economy Seats" />
                                        <p:outputLabel>Business</p:outputLabel>
                                        <p:spinner value="#{flightWizard.flightMB.flight.businessClassSeats}" required="true" label="Total Business Seats" />
                                        <p:outputLabel>First Class</p:outputLabel>
                                        <p:spinner value="#{flightWizard.flightMB.flight.firstClassSeats}" required="true" label="Total First Class Seats" />
                                    </h:panelGrid>
                                </p:panel>                   
                            </p:tab>
                            <p:tab id="confirmation" title="Confirmation">
                                <p:panel header="Confirm Flight">
                                    <p:messages />

                                    <p:dataGrid value="#{flightWizard.flightMB.flight}" var="f" columns="2">
                                        <div style="width:50%;">
                                            <h:panelGrid columns="2" >
                                                <p:outputLabel>Aircraft Name: </p:outputLabel>
                                                <h:outputText value="#{f.aircraftName}"></h:outputText>
                                                <p:outputLabel>Airline Name: </p:outputLabel>
                                                <h:outputText value="#{f.airlineName}" ></h:outputText>
                                                <p:outputLabel>Flight Number: </p:outputLabel>
                                                <h:outputText value="#{f.flightNumber}" ></h:outputText>
                                                <p:outputLabel>Duration: </p:outputLabel>
                                                <h:outputText value="#{f.flightTime}"></h:outputText>
                                                <p:outputLabel>Base Price: </p:outputLabel>
                                                <h:outputText value="#{f.basePrice}"></h:outputText>

                                                <p:outputLabel>Arrival Airport: </p:outputLabel>
                                                <h:outputText value="#{f.arrivalAirport}" ></h:outputText>
                                                <p:outputLabel>Arrival Airport Code: </p:outputLabel>
                                                <h:outputText value="#{f.arrivalAirportCode}" ></h:outputText>
                                                <p:outputLabel>Arrival Date and Time: </p:outputLabel>
                                                <h:outputText value="#{f.arrival}" />

                                                <p:outputLabel>Departure Airport: </p:outputLabel>
                                                <h:outputText value="#{f.departureAirport}" ></h:outputText>
                                                <p:outputLabel>Departure Airport Code: </p:outputLabel>
                                                <h:outputText value="#{f.departureAirportCode}" ></h:outputText>
                                                <p:outputLabel>Departure Date and Time: </p:outputLabel>
                                                <h:outputText value="#{f.departure}" />

                                                <p:outputLabel>Economy: </p:outputLabel>
                                                <h:outputText value="#{f.economyClassSeats}" ></h:outputText>
                                                <p:outputLabel>Business: </p:outputLabel>
                                                <h:outputText value="#{f.businessClassSeats}" ></h:outputText>
                                                <p:outputLabel>First Class: </p:outputLabel>
                                                <h:outputText value="#{f.firstClassSeats}" ></h:outputText>
                                            </h:panelGrid>
                                        </div>

                                        <p:commandButton value="Add To Submission" ajax="true" action="#{flightWizard.addAnother(f)}" oncomplete="PF('wiz').loadStep('flightInformation',false)" />
                                    </p:dataGrid>
                                </p:panel>          

                            </p:tab>
                        </p:wizard>
                    </p:layoutUnit>
                    <p:layoutUnit id='submissionUnit' position="east" size='40%' >
                        <p:dataTable id='submissionTable' var="x" value="#{flightWizard.flightMB.flights}" rowIndexVar="rowIndex">
                            <p:column style="font-size:0.8em;" headerText="Flight Number">
                                <h:outputText value="#{x.flightNumber}" />
                            </p:column>
                            <p:column style="font-size:0.8em;" headerText="Arrival Code">
                                <h:outputText value="#{x.arrivalAirportCode}" />
                            </p:column>
                            <p:column style="font-size:0.8em;" headerText="Arrival">
                                <h:outputText value="#{x.arrival}" />
                            </p:column>                                    
                            <p:column style="font-size:0.8em;" headerText="Departure Code">
                                <h:outputText value="#{x.departureAirportCode}" />
                            </p:column>

                            <p:column style="font-size:0.8em;" headerText="Departure">
                                <h:outputText value="#{x.departure}" />
                            </p:column>                                    
                            <p:column style="font-size:0.8em;" headerText="Edit">
                                <p:commandButton value="Edit" action="#{flightWizard.flightMB.changeFlightByIndex(rowIndex)}" oncomplete="PF('wiz').loadStep('flightInformation',false)"/>
                            </p:column>
                        </p:dataTable>    
                        <br/>
                        <p:commandButton value="Submit" immediate="true" disabled="#{flightWizard.flightMB.flights.size()==0?true:false}" action="#{flightBean.insertFlight(flightWizard.flightMB.flights)}"/>
                    </p:layoutUnit>
                </p:layout>                
        </ui:insert>

我试图通过命令按钮从第二布局单元更新第三布局单元中的数据表。

我尝试使用命令按钮的update属性，但是似乎要做的只是打破向导，并且不允许我进入打开的选项卡。

我也尝试过像这样从bean更新它：

public void addAnother(Flight f){
    flightMB.addFlightToCreate(f);
    flightMB.setFlight(new Flight());
    RequestContext reqCtx = RequestContext.getCurrentInstance();
    // reqCtx.update("form2:submissionUnit");
    reqCtx.update("form2:layoutUnit");

}

在这一点上的任何帮助，将不胜感激。

Answer 1

而不是更新整个p:layoutUnit 。 您可以更新数据表，也可以在其周围放置h:panelGroup并对其进行更新。

@XHTML：

<h:form id="form1">
<p:layoutUnit id='submissionUnit'>
<h:panelGroup id="tablePG">
<p:dataTable id='submissionTable'>
...
</p:dataTable>
</h:panelGroup>
</p:layoutUnit>
</h:form>

@ManagedBean：

RequestContext.getCurrentInstance().update("form1:tablePG");

而且请注意，虽然从更新组件ManagedBean使用RequestContext那么你并不需要提供:在您的组件ID的开始。