您可以使用属性设置为value的 3 个textField
元素。isRemoveLineWhenBlank
true
示例(jrxml 文件):
<?xml version="1.0" encoding="UTF-8"?>
<jasperReport .. topMargin="0" bottomMargin="0">
<parameter name="parameter1" class="java.lang.String">
<defaultValueExpression><![CDATA[null]]></defaultValueExpression>
</parameter>
<parameter name="parameter2" class="java.lang.String">
<defaultValueExpression><![CDATA[null]]></defaultValueExpression>
</parameter>
<parameter name="parameter3" class="java.lang.String">
<defaultValueExpression><![CDATA[null]]></defaultValueExpression>
</parameter>
<title>
<band height="102" splitType="Stretch">
<textField isBlankWhenNull="true">
<reportElement x="163" y="9" width="100" height="20" isRemoveLineWhenBlank="true"/>
<box>
<topPen lineWidth="1.0"/>
<leftPen lineWidth="1.0"/>
<bottomPen lineWidth="1.0"/>
<rightPen lineWidth="1.0"/>
</box>
<textElement/>
<textFieldExpression><![CDATA[$P{parameter1} == null ? null : "Parameter1: " + $P{parameter1}]]></textFieldExpression>
</textField>
<textField isBlankWhenNull="true">
<reportElement x="163" y="29" width="100" height="20" isRemoveLineWhenBlank="true"/>
<box>
<topPen lineWidth="1.0"/>
<leftPen lineWidth="1.0"/>
<bottomPen lineWidth="1.0"/>
<rightPen lineWidth="1.0"/>
</box>
<textElement/>
<textFieldExpression><![CDATA[$P{parameter2} == null ? null : "Parameter2: " + $P{parameter2}]]></textFieldExpression>
</textField>
<textField isBlankWhenNull="true">
<reportElement x="163" y="49" width="100" height="20" isRemoveLineWhenBlank="true"/>
<box>
<topPen lineWidth="1.0"/>
<leftPen lineWidth="1.0"/>
<bottomPen lineWidth="1.0"/>
<rightPen lineWidth="1.0"/>
</box>
<textElement/>
<textFieldExpression><![CDATA[$P{parameter3} == null ? null : "Parameter3: " + $P{parameter3}]]></textFieldExpression>
</textField>
<staticText>
<reportElement x="163" y="73" width="100" height="20"/>
<box>
<topPen lineWidth="1.0"/>
<leftPen lineWidth="1.0"/>
<bottomPen lineWidth="1.0"/>
<rightPen lineWidth="1.0"/>
</box>
<textElement/>
<text><![CDATA[Static text]]></text>
</staticText>
<line>
<reportElement x="63" y="6" width="447" height="1"/>
</line>
<line>
<reportElement x="73" y="96" width="447" height="1"/>
</line>
</band>
</title>
</jasperReport>
报告设计iReport
:
对于parameter1=null、parameter2=null、parameter1=value3,结果将是:
更新
为了解决向上移动的问题,textField
如果上面的元素是隐藏的,您可以使用Frame
容器。您应该添加 2 个框架(每列一个)并textField
在每个框架中放置 2 个元素(2 行)。
示例(jrxml 文件):
<?xml version="1.0" encoding="UTF-8"?>
<jasperReport .. topMargin="0" bottomMargin="0">
<parameter name="par1" class="java.lang.String">
<defaultValueExpression><![CDATA[null]]></defaultValueExpression>
</parameter>
<parameter name="par2" class="java.lang.String">
<defaultValueExpression><![CDATA[null]]></defaultValueExpression>
</parameter>
<parameter name="par3" class="java.lang.String">
<defaultValueExpression><![CDATA[null]]></defaultValueExpression>
</parameter>
<parameter name="par4" class="java.lang.String">
<defaultValueExpression><![CDATA[null]]></defaultValueExpression>
</parameter>
<title>
<band height="80" splitType="Stretch">
<line>
<reportElement x="10" y="6" width="520" height="1"/>
</line>
<line>
<reportElement x="10" y="72" width="520" height="1"/>
</line>
<frame>
<reportElement x="329" y="10" width="172" height="59"/>
<frame>
<reportElement x="13" y="3" width="60" height="54"/>
<textField isBlankWhenNull="true">
<reportElement x="1" y="20" width="52" height="20" isRemoveLineWhenBlank="true"/>
<box>
<topPen lineWidth="1.0"/>
<leftPen lineWidth="1.0"/>
<bottomPen lineWidth="1.0"/>
<rightPen lineWidth="1.0"/>
</box>
<textElement/>
<textFieldExpression><![CDATA[$P{par3} == null ? null : "P3: " + $P{par3}]]></textFieldExpression>
</textField>
<textField isBlankWhenNull="true">
<reportElement x="1" y="0" width="52" height="20" isRemoveLineWhenBlank="true"/>
<box>
<topPen lineWidth="1.0"/>
<leftPen lineWidth="1.0"/>
<bottomPen lineWidth="1.0"/>
<rightPen lineWidth="1.0"/>
</box>
<textElement/>
<textFieldExpression><![CDATA[$P{par1} == null ? null : "P1: " + $P{par1}]]></textFieldExpression>
</textField>
</frame>
<frame>
<reportElement x="73" y="3" width="70" height="54"/>
<textField isBlankWhenNull="true">
<reportElement x="1" y="0" width="52" height="20" isRemoveLineWhenBlank="true"/>
<box>
<topPen lineWidth="1.0"/>
<leftPen lineWidth="1.0"/>
<bottomPen lineWidth="1.0"/>
<rightPen lineWidth="1.0"/>
</box>
<textElement/>
<textFieldExpression><![CDATA[$P{par2} == null ? null : "P2: " + $P{par2}]]></textFieldExpression>
</textField>
<textField isBlankWhenNull="true">
<reportElement x="1" y="20" width="52" height="20" isRemoveLineWhenBlank="true"/>
<box>
<topPen lineWidth="1.0"/>
<leftPen lineWidth="1.0"/>
<bottomPen lineWidth="1.0"/>
<rightPen lineWidth="1.0"/>
</box>
<textElement/>
<textFieldExpression><![CDATA[$P{par4} == null ? null : "P4: " + $P{par4}]]></textFieldExpression>
</textField>
</frame>
</frame>
<textField isBlankWhenNull="true">
<reportElement x="10" y="30" width="52" height="20" isRemoveLineWhenBlank="true"/>
<box>
<topPen lineWidth="1.0"/>
<leftPen lineWidth="1.0"/>
<bottomPen lineWidth="1.0"/>
<rightPen lineWidth="1.0"/>
</box>
<textElement/>
<textFieldExpression><![CDATA[$P{par3} == null ? null : "P3: " + $P{par3}]]></textFieldExpression>
</textField>
<textField isBlankWhenNull="true">
<reportElement x="10" y="10" width="52" height="20" isRemoveLineWhenBlank="true"/>
<box>
<topPen lineWidth="1.0"/>
<leftPen lineWidth="1.0"/>
<bottomPen lineWidth="1.0"/>
<rightPen lineWidth="1.0"/>
</box>
<textElement/>
<textFieldExpression><![CDATA[$P{par1} == null ? null : "P1: " + $P{par1}]]></textFieldExpression>
</textField>
<textField isBlankWhenNull="true">
<reportElement x="64" y="10" width="52" height="20" isRemoveLineWhenBlank="true"/>
<box>
<topPen lineWidth="1.0"/>
<leftPen lineWidth="1.0"/>
<bottomPen lineWidth="1.0"/>
<rightPen lineWidth="1.0"/>
</box>
<textElement/>
<textFieldExpression><![CDATA[$P{par2} == null ? null : "P2: " + $P{par2}]]></textFieldExpression>
</textField>
<textField isBlankWhenNull="true">
<reportElement x="64" y="30" width="52" height="20" isRemoveLineWhenBlank="true"/>
<box>
<topPen lineWidth="1.0"/>
<leftPen lineWidth="1.0"/>
<bottomPen lineWidth="1.0"/>
<rightPen lineWidth="1.0"/>
</box>
<textElement/>
<textFieldExpression><![CDATA[$P{par4} == null ? null : "P4: " + $P{par4}]]></textFieldExpression>
</textField>
</band>
</title>
</jasperReport>
报告设计iReport
:
对于par1=null、par2=2、par3=3、par4=4,结果将是:
您可以比较结果 - 左侧是在不使用frame
的情况下完成的,右侧是frame
元素。