如何重新渲染数据网格中的整行?
我有以下代码,使用 PrimeFaces 3.0.M3、Tomcat 7 和 Mojarra 2.1.3。
<p:dataGrid columns="1" var="answer" value="#{answersbysubject}">
<p:column>
<p:panel columns="1">
<h:outputText value="#{answer.question.name}" />
<p:dataGrid columns="5" var="selection" value="#{brain.selections}">
<p:column>
<h:panelGrid columns="1" styleClass="selections" id="mySelection">
<h:outputText value="#{selection.name}" />
<p:commandLink update="mySelection">
<p:graphicImage value="/img/CheckboxFull.png" rendered="#{selection == answer.selection}" />
<p:graphicImage value="/img/CheckboxEmpty.png" rendered="#{selection != answer.selection}" />
<f:setPropertyActionListener value="#{selection}" target="#{answer.selection}" />
</p:commandLink>
</h:panelGrid>
</p:column>
</p:dataGrid>
</p:panel>
</p:column>
</p:dataGrid>
抱歉,如果有点太冗长了...... 重点是:我想实现一个更好的 5 向复选框(像一组单选按钮一样工作)。
整个服务器端工作正常,除了当我单击另一个复选框时,它仅重新呈现我刚刚单击的复选框。也就是说,我看到两个选中的复选框 - 旧的复选框只有在我在浏览器中按 F5 刷新后才会清除。
我尝试为每个标签提供 id,然后让 commandLink 更新所有标签,但除了当前复选框之外什么都没有更新:( 表行的 id 在动态生成过程中可能会混淆,这就是为什么无法可靠地找到/识别其他标签以进行更新的原因吗?如果是这种情况,那么我只更新当前表格行(不仅仅是像现在这样的当前表格单元格......)的解决方案是什么?
非常感谢!
I have the following code, using PrimeFaces 3.0.M3, Tomcat 7 and Mojarra 2.1.3.
<p:dataGrid columns="1" var="answer" value="#{answersbysubject}">
<p:column>
<p:panel columns="1">
<h:outputText value="#{answer.question.name}" />
<p:dataGrid columns="5" var="selection" value="#{brain.selections}">
<p:column>
<h:panelGrid columns="1" styleClass="selections" id="mySelection">
<h:outputText value="#{selection.name}" />
<p:commandLink update="mySelection">
<p:graphicImage value="/img/CheckboxFull.png" rendered="#{selection == answer.selection}" />
<p:graphicImage value="/img/CheckboxEmpty.png" rendered="#{selection != answer.selection}" />
<f:setPropertyActionListener value="#{selection}" target="#{answer.selection}" />
</p:commandLink>
</h:panelGrid>
</p:column>
</p:dataGrid>
</p:panel>
</p:column>
</p:dataGrid>
sorry if a bit too verbose...
The point is: I want to realize a nicer 5-way checkbox (working like a set of radio buttons).
The whole works fine serverside, except that when I click another checkbox it rerenders ONLY the checkbox I just clicked. That is, I see two checked checkboxes - the old one doesn't clear until I do the F5 refresh in browser.
I tried to give ids to each tag and then let the commandLink update all, but nothing else than the current checkbox gets updated :(
The ids of a table row get probably mixed up during dynamic generation, is this why no other tags can be found/identified reliably for update? If this is the situation, then what would be the solution for me to update ONLY the current table row (not only the current table cell like now...)?
Many thanks!
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