如何获取< p：column>的嵌套组件？在使用EL的小面孔中 [英] How can I get the nested components of a <p:column> in a facelet using EL

问题描述

假设我有这个：

<p:column headerText="R"
          style=" text-align: center;"
          width="10"
          rendered="true">
  <p:commandLink id="MRepShowButton" update=":form1:display" onclick="EditorDialog.show();"  title="Editer le compte rendu"> 
  <f:setPropertyActionListener value="#{exam}" target="#{dyna.selectedExamen}" />  
     <p:graphicImage id="img1" value="/images/study_Report_icons/Text/0.png" rendered="#{exam.examen.rapport.rapportWrittenState == null}"/>
     <p:graphicImage id="img2" value="/images/study_Report_icons/Text/#{exam.examen.rapport.rapportWrittenState}.png" rendered="#{exam.examen.rapport.rapportWrittenState != null}"/>
  </p:commandLink>
</p:column> 

现在我如何使用< p：columns> <实现这一目标/ code>

Now how can I achieve that using the <p:columns>

<p:columns value="#{tableBean.columns}" var="column" columnIndexVar="colIndex" 
           sortBy="#{column.property}" filterBy="#{column.property}">
                    <f:facet name="header">
                        #{column.header}
                    </f:facet>

                    #{car[column.property]}

                </p:columns>

有关此主题的所有示例和教程仅涵盖简单的< h ：outptText> 组件（p：graphicImage，p：commandLink等等）嵌套在如上代码的列中。
你是如何实现的？

all the examples and tutorials about this topic only covers the simple <h:outptText> what about components (p:graphicImage,p:commandLink ,etc..) nested in a column like the code above. how do you achieve that ?

推荐答案

你可以渲染< p：columns>内的任何元素。元素。

You can render any element inside the <p:columns> element.

您要做的事情可能是以不同方式呈现单元格内容，具体取决于列。您可以尝试这样的事情：

What you want to do is probably render the cell contents differently, depending on the column. You can try something like this :

  //classic rendering (for all cells)
  <h:outputText value="#{car[column.property]}"/>

  //conditional rendering (for 'report' cells only)
  <h:panelGroup rendered="#{column.property == 'report'}">
    <p:commandLink id="MRepShowButton" update=":form1:display" onclick="EditorDialog.show();"  title="Editer le compte rendu">
      <f:setPropertyActionListener value="#{exam}" target="#{dyna.selectedExamen}" />  
      <p:graphicImage id="img1" value="/images/study_Report_icons/Text/0.png" rendered="#{exam.examen.rapport.rapportWrittenState == null}"/>
      <p:graphicImage id="img2" value="/images/study_Report_icons/Text/#{exam.examen.rapport.rapportWrittenState}.png" rendered="#{exam.examen.rapport.rapportWrittenState != null}"/>
    </p:commandLink>
  </h:panelGroup>

这篇关于如何获取&lt; p：column&gt;的嵌套组件？在使用EL的小面孔中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！