如何在按值迭代时删除空行? [英] How to remove empty lines when iterating by values?
问题描述
我有这样的xml数据:
I've got xml data like this:
<root>
<eee>aaa</eee>
<eee>bbb</eee>
<eee>ccc</eee>
<eee>ddd</eee>
</root>
我想在我的元素中显示元素 eee
详细信息
乐队。因此我添加了 textField
,其中包含表达式 $ F {My_elem}
,我得到:
I want to displays elements eee
in my detail
band. Therefore I added textField
that contains expression $F{My_elem}
and I get:
aaa
bbb
ccc
ddd
aaa
bbb
ccc
ddd
它看起来还不错,但问题是当我将Print when表达式添加到我的textField中时:
It looks pretty good but the problem is when I add "Print when" expression into my textField which is:
$V{REPORT_COUNT}%2==1
我的报告显示:
aaa
ddd
aaa
ddd
但我的目的是显示:
aaa
ddd
aaa
ddd
空白设置为TextField不起作用时删除行。
"Remove line when blank" set to TextField does't work.
当元素按元素迭代时,如何显示空白行?
How can I not display the blank line when details bound iterate by elements?
推荐答案
将打印时间表达式移至明细
带
Move the "Print when" expression to the detail
band
<detail>
<band height="20">
<printWhenExpression><![CDATA[$V{REPORT_COUNT}%2==1]]></printWhenExpression>
.... your text fields...
</band>
</detail>
这样一来,而不是说你的 textField
不应该显示,你告诉报告删除整个详细信息
band
This way instead of saying that your textField
should not be displayed, you tell the report to remove the whole detail
band
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