[英]Displaying data using JSF dataTable
I want to display data using the h:dataTable
tags in JSF The data I am displaying has to be in a format like this: 我想在JSF中使用h:dataTable
标签显示数据我显示的数据必须是这样的格式:
Name: XXXX
ID: 8989
Age: 32
I have seen several examples on the web that tell you how to display the data like this: 我在网上看到了几个例子,告诉你如何显示这样的数据:
Name ID Age XXX 8989 32 姓名ID年龄XXX 8989 32
Since the dataTable
tag only has a sub tag h:column
and NO h:row
I am having issues with this. 由于dataTable
标签只有一个子标签h:column
和NO h:row
我遇到了问题。 Is there a better way to do this? 有一个更好的方法吗? I have implemented the first format I mentioned using h:datable
and h:column
, so first I just write out all the column headers in column 1 and then I write out all the values in column2. 我已经使用h:datable
和h:column
实现了我提到的第一种格式,所以首先我只写出第1列中的所有列标题,然后写出column2中的所有值。 The issue I am facing is that when one of the values is blank the next value gets printed in its place and the data appears wrong, this is really a formatting issue. 我面临的问题是,当其中一个值为空时,下一个值将打印在其位置并且数据显示错误,这实际上是格式化问题。 When data is blank it should leave space for it and then print the next value in the next row. 当数据为空时,它应为其留出空间,然后在下一行中打印下一个值。 Hope I am making sense, any thoughts will be much appreciated. 希望我有意义,任何想法都会受到高度赞赏。
I tried adding the below : 我尝试添加以下内容:
<h6><h:outputText value="#{empty imeiInfo.userEmail ? ' ' : imeiInfo.userEmail}"></h:outputText></h6><br/>
But there is a syntax error in this which I cannot figure out, the message I get is: 但是这里有一个语法错误,我无法弄清楚,我得到的信息是:
Syntax error in EL EL中的语法错误
Any ideas? 有任何想法吗? Thanks. 谢谢。
Is it just for a non-repeating data? 它只是针对非重复数据吗? If so, use <h:panelGrid>
如果是这样,请使用<h:panelGrid>
For example: 例如:
<h:panelGrid columns="2">
<h:outputText value="Name:"/>
<h:outputText value="#{person.name}"/>
<h:outputText value="ID:"/>
<h:outputText value="#{person.id}"/>
<h:outputText value="Age:"/>
<h:outputText value="#{person.age}"/>
</h:panelGrid>
If it is for repeating data (ie. multiple 'persons') then you have a number of options depending on what other libraries you are using. 如果是重复数据(即多个'人'),那么根据您使用的其他库,您有许多选项。 For example: 例如:
1: Build your own table using Facelets <ui:repeat>
(you could do the same with <c:for>
). 1:使用Facelets <ui:repeat>
构建自己的表(您可以对<c:for>
执行相同操作)。 For example: 例如:
<table>
<ui:repeat value="#{myBean.persons}" var="person">
<tr>
<td>
<h:outputText value="Name:"/>
</td>
<td>
<h:outputText value="#{person.name}"/>
</td>
</tr>
<tr>
<td>
<h:outputText value="ID:"/>
</td>
<td>
<h:outputText value="#{person.id}"/>
</td>
</tr>
<tr>
<td>
<h:outputText value="Age:"/>
</td>
<td>
<h:outputText value="#{person.age}"/>
</td>
</tr>
<tr>
<td colspan="2">
 
</td>
</tr>
</ui:repeat>
</table>
EDIT: I haven't tried this but you should be able to surround the in the first example ( <h:panelGrid>
) with a <c:for>
to render repeating elements. 编辑:我没有尝试这个,但你应该能够在第一个例子( <h:panelGrid>
)中用<c:for>
来包围重复元素。 The <c:for>
gets processed before the <h:panelGrid>
. <c:for>
在<h:panelGrid>
之前处理。 Should work. 应该管用。
I'm not sure to understand how you want to render your table. 我不确定你想要如何呈现你的桌子。 I think it would help us if you could provide the JSF code of your table... 如果您能提供表格的JSF代码,我认为这对我们有帮助...
However, concerning this point: 但是,关于这一点:
When data is blank it should leave space for it and then print the next value in the next row 当数据为空时,它应为其留出空间,然后在下一行中打印下一个值
maybe you can try something like that: 也许你可以试试这样的东西:
<h:outputText value="#{empty aRecord.name ? ' ' : aRecord.name}"/>
This code will render an unbreakable space if the name of the record is empty, otherwise it will render the name
of the record. 如果记录的名称为空,此代码将呈现不可破坏的空间,否则将呈现记录的name
。
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