我有一个问题，阿贾克斯更新UI：重复。重复（见code以下）：更新来自外部的UI一个命令触发。变量 priceHour 需要计算其他价格（周，Monat ..）

I have a problem to ajax update an ui:repeat. The update is triggered from a commandButton outside the ui:repeat (see the code below). The variable priceHour is required to calculate the other prices (week, Monat..)

<h:form id="myForm">
<ui:repeat id="alvs" var="alv" value="#{myBean.allV}" >  
    <h:panelGroup rendered="#{alv.status == 'ON'}" > 
    <div class="pricing">

        <h:outputText styleClass="bold" value="#{alv.shortName}: "/>

        <p:inputText value="#{alv.priceHour}" id="hour" required="true" >                 
        <f:convertNumber pattern="#.##" type="currency" />  
        </p:inputText>   

        <p:inputText value="#{alv.priceDay}" id="day" >                
        <f:convertNumber pattern="#.##" type="currency" />
        </p:inputText>

        <p:inputText value="#{alv.priceWeek}" id="week" >                 
        <f:convertNumber pattern="#.##" type="currency" /> 
        </p:inputText> 

        <p:inputText value="#{alv.priceMonth}" id="month" >                   
        <f:convertNumber pattern="#.##" type="currency" /> 
        </p:inputText>  

    </div>
    </h:panelGroup>

    <p:messages />  

    </ui:repeat>

<p:commandButton value="Calculator" actionListener="#{myBean.priceCalc}" process="@this,alvs:hour" update="alvs" /> 

</h:form >

当我按一下按钮没有任何反应和UI：重复和价格都没有更新。哪里不对？ 我也试过更新myForm会：alvs，更新：myForm会：alvs：没什么 我使用primefaces 3.5 在此先感谢

When I click the button nothing happens and the ui:repeat and the prices are not updated. What is wrong? I tried also update"myForm:alvs", update":myForm:alvs": nothing! I'm using primefaces 3.5 Thanks in advance

推荐答案

UI：重复不是渲染的成分，所以你不会看到在HTML中任何事情。不能更新的东西，不渲染。另外， UI：重复甚至没有一个 ID 属性

ui:repeat is not a rendered component, so you won't see anything in HTML about it. You can't update something that is not rendered. Also the ui:repeat doesn't even have an id attribute.

您需要换你的 UI：重复一个组件内，如 H：panelGroup中例如是这样的：

You need to wrap your ui:repeat inside a component such as h:panelGroup for example like this :

<h:panelGroup id="alvs">
    <ui:repeat ...>
    </ui:repeat>
</h:panelGroup>

而在你的按钮更新panelGroup中：

And update the panelgroup in your button :

<p:commandButton value="Calculator" actionListener="#{myBean.priceCalc}" process="@this,alvs" update="alvs" />

请注意，我已经删除了：一小时，因为你不能spectify它，每个标识会为每个重复不同的

Notice that I've removed the :hour since you can't spectify it, each IDs will be different for each repeat.

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