内部底部的框架为空白时如何缩小框架？？
问题描述 投票：1回答：1
所以，当最后两个内部框架包含文本字段（红色框）为空白。左右主框架也在框架内。但是，即使只有4行，我也总是在报告中得到未使用的空间。
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<printWhenExpression><![CDATA[$V{REPORT_COUNT}>1]]></printWhenExpression>
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<band height="71" splitType="Stretch">
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<property name="local_mesure_unitheight" value="pixel"/>
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<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
<printWhenExpression><![CDATA[!(EXACT(continitions]]></printWhenExpression>
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<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
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<textElement>
<font size="8"/>
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<textFieldExpression><![CDATA["Morada"]]></textFieldExpression>
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<textField isStretchWithOverflow="true" isBlankWhenNull="true">
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<textElement>
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<textFieldExpression><![CDATA[(condditions]]></textFieldExpression>
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<property name="com.jaspersoft.studio.unit.x" value="px"/>
<printWhenExpression><![CDATA[conditions]]></printWhenExpression>
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<textField isStretchWithOverflow="true" isBlankWhenNull="true">
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<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
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<textFieldExpression><![CDATA["field_label"]]></textFieldExpression>
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<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement key="" x="58" y="0" width="218" height="10" isRemoveLineWhenBlank="true" uuid="c9f0f6dc-9fc3-49bd-ac4c-7de41ac07633"/>
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<textFieldExpression><![CDATA[conditions]]></textFieldExpression>
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<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
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<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="80" height="10" uuid="e4e78c67-a0c0-4d01-9942-3429ce402bc5">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$(field)]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
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<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field}]]></textFieldExpression>
</textField>
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<frame>
<reportElement x="0" y="0" width="300" height="10" isRemoveLineWhenBlank="true" uuid="7f7b2531-9450-4a9f-b311-625df5ccae4f">
<property name="com.jaspersoft.studio.layout" value="com.jaspersoft.studio.editor.layout.FreeLayout"/>
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
</reportElement>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
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<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
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<textElement>
<font size="8"/>
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<textFieldExpression><![CDATA["field"]]></textFieldExpression>
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<textField isStretchWithOverflow="true" isBlankWhenNull="true">
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<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
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<textElement>
<font size="8"/>
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<textFieldExpression><![CDATA[$F{field_value}]]></textFieldExpression>
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<frame>
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<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
<property name="local_mesure_unitheight" value="pixel"/>
<property name="com.jaspersoft.studio.unit.height" value="px"/>
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<property name="local_mesure_unitheight" value="pixel"/>
<property name="com.jaspersoft.studio.unit.height" value="px"/>
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
<printWhenExpression><![CDATA[!($F{condition)))]]></printWhenExpression>
</reportElement>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="100" height="10" isRemoveLineWhenBlank="true" isPrintWhenDetailOverflows="true" uuid="edb4759b-cf68-4367-8bc4-7e07364ae3c5">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
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<textFieldExpression><![CDATA["field_label"]]></textFieldExpression>
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<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="100" y="0" width="144" height="10" isPrintWhenDetailOverflows="true" uuid="48766f62-03de-407a-a771-6e82e5a4c7ff">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field_value}]]></textFieldExpression>
</textField>
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<frame>
<reportElement positionType="Float" x="0" y="10" width="244" height="10" isRemoveLineWhenBlank="true" uuid="acbe8ba0-af8d-4e1a-93a8-7305a02839a6">
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
<printWhenExpression><![CDATA[!($F{condition)))]]></printWhenExpression>
</reportElement>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="100" height="10" uuid="d14807d2-aa00-421f-9dab-7cce0adf758a">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field_label}]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="100" y="0" width="144" height="10" uuid="63e62a4d-9dca-4dca-85f5-515a4ee18d0b">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{locationscope_value}]]></textFieldExpression>
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<frame>
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<property name="com.jaspersoft.studio.unit.x" value="px"/>
<printWhenExpression><![CDATA[!($F{condition})))]]></printWhenExpression>
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<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="100" height="10" uuid="6ce16cc5-2a18-4b3d-a7f7-17979a0a111b">
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<textElement>
<font size="8"/>
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<textFieldExpression><![CDATA[$F{field_label}]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
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<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
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<textFieldExpression><![CDATA[$F{scope_value}]]></textFieldExpression>
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<frame>
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<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
<printWhenExpression><![CDATA[!($F{condition})))]]></printWhenExpression>
</reportElement>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="100" height="10" uuid="1c8aedb1-020b-4d7f-aea2-93b0557b2c23">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
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<textElement>
<font size="8"/>
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<textFieldExpression><![CDATA["label"]]></textFieldExpression>
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<textField isStretchWithOverflow="true" isBlankWhenNull="true">
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<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field_value}]]></textFieldExpression>
</textField>
</frame>
<frame>
<reportElement positionType="Float" x="0" y="20" width="244" height="10" isRemoveLineWhenBlank="true" uuid="8f058c9f-27d5-4f0f-8eac-32a58fa7ad06">
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
<printWhenExpression><![CDATA[!($F{condition})]]></printWhenExpression>
</reportElement>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="100" height="10" uuid="ba3f46e3-c823-4815-a74d-7a4caa77828f">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field_label}]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="100" y="0" width="144" height="10" uuid="75cce569-0fc5-425b-a9fc-9a42516a4305">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field_value}]]></textFieldExpression>
</textField>
</frame>
<frame>
<reportElement positionType="Float" x="0" y="50" width="244" height="10" isRemoveLineWhenBlank="true" uuid="18fad1eb-f42f-4876-be03-40aac2765875">
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
<property name="local_mesure_unity" value="pixel"/>
<property name="com.jaspersoft.studio.unit.y" value="px"/>
<printWhenExpression><![CDATA[!($F{condition}]]></printWhenExpression>
</reportElement>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="100" height="10" uuid="2e21f092-a95f-42b1-897e-50af56985554">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field_label}]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="100" y="0" width="144" height="10" uuid="a9fe6852-4253-4fb9-a089-d007459655dd">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field_value}]]></textFieldExpression>
</textField>
</frame>
<frame>
<reportElement positionType="Float" x="0" y="60" width="244" height="10" isRemoveLineWhenBlank="true" uuid="c102458f-d273-4611-a851-ed8e83adfead">
<property name="local_mesure_unitx" value="pixel"/>
<property name="com.jaspersoft.studio.unit.x" value="px"/>
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
<property name="local_mesure_unity" value="pixel"/>
<property name="com.jaspersoft.studio.unit.y" value="px"/>
<printWhenExpression><![CDATA[!($F{condntion})]]></printWhenExpression>
</reportElement>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="0" y="0" width="100" height="10" uuid="80dcd916-f4c8-434d-a833-e864f64ddae5">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA["field_label"]]></textFieldExpression>
</textField>
<textField isStretchWithOverflow="true" isBlankWhenNull="true">
<reportElement x="100" y="0" width="144" height="10" uuid="5676615c-3ae5-41c6-8cf1-dbdef5cc3a99">
<property name="local_mesure_unitwidth" value="pixel"/>
<property name="com.jaspersoft.studio.unit.width" value="px"/>
</reportElement>
<textElement>
<font size="8"/>
</textElement>
<textFieldExpression><![CDATA[$F{field_value}]]></textFieldExpression>
</textField>
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</frame>
</frame>
</band>
</detail>
1个回答
0
投票
投票
在jasper报告中，您可以不收缩元素，而需要时需要stretch元素。
在您的情况下，这意味着报表中的框架需要为所需的最小尺寸，然后，如果其中包含更多内容，则将其拉伸。
例如，您的第一帧
<frame>
<reportElement positionType="Float" stretchType="RelativeToTallestObject" x="0" y="0" width="554" height="71" isRemoveLineWhenBlank="true" uuid="603f6666-1471-4d16-b0aa-bde352f18b8e">
......
它的最小高度始终为71，如果需要减小（当不显示某些组件时，则需要将其减小为例如10。）]
为了解释这种行为，我将附上一个小示例，其框架（带有边框）包含2个静态文本字段，第二个将基于参数显示。
<?xml version="1.0" encoding="UTF-8"?> <jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="Blank_A4_3" pageWidth="595" pageHeight="842" whenNoDataType="AllSectionsNoDetail" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="53801704-697f-43ac-aed6-9e952be4ab7f"> <property name="com.jaspersoft.studio.data.defaultdataadapter" value="One Empty Record"/> <parameter name="ShowText2" class="java.lang.Boolean"> <defaultValueExpression><![CDATA[true]]></defaultValueExpression> </parameter> <queryString> <![CDATA[]]> </queryString> <title> <band height="96" splitType="Stretch"> <frame> <reportElement stretchType="ElementGroupHeight" x="0" y="0" width="545" height="30" uuid="6ca5ba0c-b9c0-4ae9-be7f-e7a372593e94"/> <box> <topPen lineWidth="0.25"/> <leftPen lineWidth="0.25"/> <bottomPen lineWidth="0.25"/> <rightPen lineWidth="0.25"/> </box> <staticText> <reportElement x="0" y="0" width="100" height="30" uuid="7291cb69-0d98-4ce2-8031-60b5c6df4ebb"/> <textElement textAlignment="Center" verticalAlignment="Middle"/> <text><![CDATA[Static text 1]]></text> </staticText> <staticText> <reportElement x="0" y="30" width="100" height="30" isRemoveLineWhenBlank="true" uuid="7df247c0-2c72-4413-83f5-3d4d3aec258c"> <printWhenExpression><![CDATA[$P{ShowText2}]]></printWhenExpression> </reportElement> <textElement textAlignment="Center" verticalAlignment="Middle"/> <text><![CDATA[Static text 2]]></text> </staticText> </frame> </band> </title> </jasperReport>输出
不显示第二个文本字段
显示第二个文本字段
关键概念是帧具有
height="30"，它是未拉伸的值（最小值），如果显示第二个文本字段，它会被拉伸到height="60"。注意：由于
stretchType="ElementGroupHeight"已弃用，因此我正在使用stretchType="RelativeToTallestObject"。>
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