JSF:具有f:attribute的p:dataTable导致“参数类型不匹配".错误 [英] JSF: p:dataTable with f:attribute results in "argument type mismatch" error

问题描述

我想向p:dataTable添加有条件的参数，如 pastebin上的堆栈跟踪).

I want to add conditionally add some arguments to a p:dataTable like described in Conditionally render element's attribute in a composite component. But even without the c:if I get an java.lang.IllegalArgumentException: argument type mismatch (Stacktrace on pastebin).

...
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui"
...

<p:dataTable var="r" value="#{myBean.values}" >
  <f:attribute name="paginator" value="true" />
</p:dataTable>

如果我直接添加属性<p:dataTable ... paginator="true">，则不会发生错误(并且分页器可用). 我的环境是带有JBoss 7.1.1-Final的Primefaces 3.4.1.

The error does not occur (and the paginator is available) if I add the attribute directly <p:dataTable ... paginator="true">. My environment is Primefaces 3.4.1 with JBoss 7.1.1-Final.

推荐答案

尝试将其作为EL对象传递:

Try passing it as EL object:

<f:attribute name="paginator" value="#{true}" />

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