在JSF数据表中显示嵌套数组列表的值 [英] Displaying the values of a nested array list in JSF data table

问题描述

自从我开始使用JSF开发网页以来已经有一段时间了，但是我仍然在学习大多数内容.现在我有一个有趣的问题

Its been quite some time since i have started developing web pages using JSF but i am still learning most of the stuff. Now I have an interesting question

当我拥有要在ArrayList的数据表中显示的值并且将那些ArrayList对象添加到另一个数组列表中时，那么现在我将如何在数据表中显示它们.

When I have the values those to be displayed in a data table in the ArrayList and I am adding those ArrayList objects in another array list , so now how will i be able to display them in a data table.

我正在执行此操作，因为，我需要使表如此动态，以至于我不知道要在页面中显示的结果集中要获得多少列，因此我无法使用Bean obj来存储我的可变值.所以我决定要有类似的东西

I am doing this since , i need my table to be so dynamic so that i dont know how many columns will i be getting in the result set to be displayed in the page, hece i cannot have a Bean obj for storing my variable values. So i have decided to have something like

ArrayList<ArrayList<String>>

ArrayList<String> - Values for Each row

这是否有可以在jsf页面中提供的解决方案

Does this have a solution that can be provided int he jsf page

推荐答案

使用带有嵌套<ui:repeat>

<table>
    <ui:repeat value="#{bean.rows}" var="row">
        <tr>
            <ui:repeat value="#{row}" var="column">
                <td>#{column}</td>
            </ui:repeat>
        </tr>
    </ui:repeat>
</table>

或使用 PrimeFaces 和战斧和 <t:columns> .

or grab a 3rd party component library which has sort of a <x:columns> tag like PrimeFaces with <p:columns> and Tomahawk with <t:columns>.

<p:dataTable value="#{bean.rows}" var="row">
    <p:columns value="#{row}" var="column">
        #{column}
    </p:columns>
</p:dataTable>

无论哪种方式，您都可以将这些列保存在单独的列表中.

Either way, you can even keep the columns in a separate list.

这篇关于在JSF数据表中显示嵌套数组列表的值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！