JSF复合组件值和< c:if> [英] JSF composite component value and <c:if>

问题描述

我有以下内容:

<c:set var="myMode" value="#{component.parent.attributes['xyz-mode']}"/>

其中"xyz-mode"来自另一个复合组件... 当我使用以下命令打印其值时:

where "xyz-mode" is from another composite component... when I print its value using this:

<p:outputLabel value="#{myMode}" /> 

它正确打印，假设值为3 但是..在同一页面中，当我使用c:if或c:when ..时，它无法正确评估该值:

It prints it correctly, suppose the value is 3 But..in the same page, when I use c:if or c:when.. it does not evaluate the value correctly:

<c:choose>    
    <c:when test="#{myMode == 3}">
         <p:outputLabel value="mode is 3" />
    </c:when>
    <c:otherwise>
         <p:outputLabel value="Otherwise" />
    </c:otherwise>
</c:choose>

该代码仅打印其他"情况..而不是模式为3" 请注意，从复合组件中检索到的"xyz-mode"的类型为Integer. 为什么会这样呢.. 到现在已经10天了，我找不到答案了:( ..有人可以帮忙吗? 赞赏.

The code prints the "Otherwise" case only.. not the "mode is 3" Please note that the type of "xyz-mode" that is retrieved from the composite component is Integer.. Why this is happening.. It has been 10 days now and I am not finding the answer :( .. can anyone help please? Appreciated.

推荐答案

您可以使用rendered属性检查条件并相应地打印值.

You can use rendered attribute to check the condition and print the value accordingly.

<p:outputLabel value="mode is 3" rendered="#{myMode == 3}" />
<p:outputLabel value="Otherwise" rendered="#{myMode != 3}" />

希望有帮助.

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