如何使Column Footer带动态隐藏在Jasper报表中? [英] How to make the Column Footer band dynamically hide in Jasper report?

问题描述

我有一个在 iReport 中做出的报告.我在页脚中包含了textFieldExpression.我的问题是，即使这行是空白的，它仍然占用了乐队高度的空间，因此将其余字段发送到另一张纸上.

I have a report made in iReport. I included a textFieldExpression in the column footer. My problem is that even though the line is blank it still takes up the space of the height of the band and thus sending the rest of fields to another sheet.

我拥有的代码如下:

<columnFooter>
    <band height="12" splitType="Stretch">
        <printWhenExpression><![CDATA[$F{descripcionComentario}!=null]]></printWhenExpression>
        <textField>
            <reportElement x="42" y="0" width="100" height="12" uuid="5a9cbe9d-486a-4dd4-a865-d421cd7366a6"/>
            <textElement>
                <font size="8"/>
            </textElement>
            <textFieldExpression><![CDATA[$F{descripcionComentario}]]></textFieldExpression>
        </textField>
    </band>
</columnFooter>

推荐答案

columnFooter是

The columnFooter is not resizable at run time, you need to find another report structure to solve your issue.

解决方案通常是使用可以访问groupFooter频段的组.

The solution often is to use groups where you have access to the groupFooter band.

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