如何在jsf中解决周围的命名容器?

问题描述

我有一个带<p:dataTable>的jsf 2.0页面，并且在此表内有一个<p:commandButton>，应使用ajax请求从该表中删除一个项目.删除本身可以正常工作，但我不知道如何为渲染update识别周围的<p:dataTable>.

I have a jsf 2.0 page with a <p:dataTable> and inside this table a <p:commandButton> that should delete an item from this table with an ajax request. The deleting itself works fine, but I do not know how to identify the surrounding <p:dataTable> for the render update.

<lots of naming containers>
...
   <p:dataTable id="dataTable" var="userItem" ... />
     <p:column>

        <p:commandButton
             action="#{userController.doDelete(userItem.id)}"
             value="delete"
             update="?????"/>  <!-- How to address the dateTable? -->

     </p:column>
   </p:dataTable>
<.lots of naming containers>

(由于其他原因，它不起作用)

( it did not worked for an other reason)

所以我的问题是如何解决周围的命名容器，而无需使用以根UIComponent开头的绝对路径(因为那样的话，我需要命名很多命名容器.)

So my question is how to address the surrounding naming container, WITHOUT using a absolute path that starts at root UIComponent (because then I would need to name a lot of naming containers.)

推荐答案

假定表单中的所有内容都具有prependId="false"作为属性，则dataTable的update属性值应该起作用.

Assuming that you have everything within a form that has prependId="false" as an attribute, then the update attribute value of dataTable should work.

子组件的PrimeFaces更新属性可识别父dataTable组件的ID.此外，您还可以在PrimeFaces更新中使用@parent值来重新呈现子元素的直接父容器.

The PrimeFaces update attribute of child components recognizes the id of a parent dataTable component. Furthermore you can also use the @parent value within PrimeFaces update to re render a child elements immediate parent container.

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