Hi, I am using iReport Designer 5.2 and data source connection to a Oracle database. I have a report with 8 tables in Detail band, which are with conditional display. That condition is set in the printWhenExpression attribute. Depend on that condition only one or two tables are printed. Also I set the attribute isRemoveLineWhenBlank="true". So far so good but I noticed that on the same page there is blank space at the bottom, which causes some of the data printed on a new page, when there is enough space for it in the first page. Each table is with heigth=20. I noticed that when the table is not to be printed, it's size is cut from the page. I found a workaround to my problem by setting the height=1 for each table in the report and that way everything is printed on one page as it should be. I created two examples and my question is: How can they generate the same result? First jasper report with no table: <?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="example" language="groovy" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="af42ab41-2654-42de-92d1-de1d3bfcc542"> <property name="ireport.zoom" value="1.0"/> <property name="ireport.x" value="0"/> <property name="ireport.y" value="0"/> <queryString> <![CDATA[select listagg(rownum, chr(13)||chr(10)) within group (order by rownum) c1from dualconnect by rownum <= 100union allselect listagg(rownum, chr(13)||chr(10)) within group (order by rownum) c1from dualconnect by rownum <= 100]]> </queryString> <field name="C1" class="java.lang.String"/> <background> <band splitType="Stretch"/> </background> <detail> <band height="20" splitType="Stretch"> <textField isStretchWithOverflow="true"> <reportElement uuid="3e71dfdd-312f-48c5-8720-0b8268766b1c" positionType="Float" x="0" y="0" width="555" height="20"/> <textElement/> <textFieldExpression><![CDATA[$F{C1}]]></textFieldExpression> </textField> </band> </detail></jasperReport>[/code] Second jasper report with table, which should not be printed: <?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="example" language="groovy" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="af42ab41-2654-42de-92d1-de1d3bfcc542"> <property name="ireport.zoom" value="1.0"/> <property name="ireport.x" value="0"/> <property name="ireport.y" value="0"/> <style name="table"> <box> <pen lineWidth="1.0" lineColor="#000000"/> </box> </style> <style name="table_TH" mode="Opaque" backcolor="#F0F8FF"> <box> <pen lineWidth="0.5" lineColor="#000000"/> </box> </style> <style name="table_CH" mode="Opaque" backcolor="#BFE1FF"> <box> <pen lineWidth="0.5" lineColor="#000000"/> </box> </style> <style name="table_TD" mode="Opaque" backcolor="#FFFFFF"> <box> <pen lineWidth="0.5" lineColor="#000000"/> </box> </style> <subDataset name="Table Dataset 1" uuid="17ce0af8-a3de-46c7-bdce-30b19aed54e8"> <queryString> <![CDATA[select 1 as c1, 2 as c2, 3 as c3, 4 as c4from dual]]> </queryString> <field name="C1" class="java.math.BigDecimal"/> <field name="C2" class="java.math.BigDecimal"/> <field name="C3" class="java.math.BigDecimal"/> <field name="C4" class="java.math.BigDecimal"/> </subDataset> <queryString> <![CDATA[select listagg(rownum, chr(13)||chr(10)) within group (order by rownum) c1from dualconnect by rownum <= 100union allselect listagg(rownum, chr(13)||chr(10)) within group (order by rownum) c1from dualconnect by rownum <= 100]]> </queryString> <field name="C1" class="java.lang.String"/> <background> <band splitType="Stretch"/> </background> <detail> <band height="110" splitType="Stretch"> <textField isStretchWithOverflow="true"> <reportElement uuid="3e71dfdd-312f-48c5-8720-0b8268766b1c" positionType="Float" x="0" y="90" width="555" height="20"/> <textElement/> <textFieldExpression><![CDATA[$F{C1}]]></textFieldExpression> </textField> <componentElement> <reportElement uuid="dd796242-5bd6-4a50-b495-78922b0078b9" key="table" style="table" positionType="Float" x="0" y="0" width="555" height="90" isRemoveLineWhenBlank="true" isPrintWhenDetailOverflows="true"> <printWhenExpression><![CDATA[$F{C1}.isEmpty()]]></printWhenExpression> </reportElement> <jr:table xmlns:jr="http://jasperreports.sourceforge.net/jasperreports/components" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports/components http://jasperreports.sourceforge.net/xsd/components.xsd"> <datasetRun subDataset="Table Dataset 1" uuid="d5c30cb9-99cc-4b9b-9c99-0e414ab6377d"> <connectionExpression><![CDATA[$P{REPORT_CONNECTION}]]></connectionExpression> </datasetRun> <jr:column width="90" uuid="a41bd45a-ac8c-445a-8748-2c09f9aabbb5"> <jr:tableHeader style="table_TH" height="30"/> <jr:tableFooter style="table_TH" height="30"/> <jr:columnHeader style="table_CH" height="30"> <staticText> <reportElement uuid="55a27c44-3ef3-4076-bd68-2826113efbe7" x="0" y="0" width="90" height="30"/> <textElement/> <text><![CDATA[C1]]></text> </staticText> </jr:columnHeader> <jr:columnFooter style="table_CH" height="30"/> <jr:detailCell style="table_TD" height="20"> <textField> <reportElement uuid="52fb764f-d12c-4447-a576-2c58eceac6a8" x="0" y="0" width="90" height="20"/> <textElement/> <textFieldExpression><![CDATA[$F{C1}]]></textFieldExpression> </textField> </jr:detailCell> </jr:column> <jr:column width="90" uuid="8851bec7-3584-4ca1-a8f3-02cb3cf17046"> <jr:tableHeader style="table_TH" height="30"/> <jr:tableFooter style="table_TH" height="30"/> <jr:columnHeader style="table_CH" height="30"> <staticText> <reportElement uuid="58552056-9382-40c7-b1f9-bc724ef30e76" x="0" y="0" width="90" height="30"/> <textElement/> <text><![CDATA[C2]]></text> </staticText> </jr:columnHeader> <jr:columnFooter style="table_CH" height="30"/> <jr:detailCell style="table_TD" height="20"> <textField> <reportElement uuid="19352f2c-d280-4212-9c41-d48ae68d8f18" x="0" y="0" width="90" height="20"/> <textElement/> <textFieldExpression><![CDATA[$F{C2}]]></textFieldExpression> </textField> </jr:detailCell> </jr:column> <jr:column width="90" uuid="113cb369-8bda-49e7-bd63-625b7d3b80f4"> <jr:tableHeader style="table_TH" height="30"/> <jr:tableFooter style="table_TH" height="30"/> <jr:columnHeader style="table_CH" height="30"> <staticText> <reportElement uuid="ce981f0c-2ac5-42f6-9ea3-9beac9841778" x="0" y="0" width="90" height="30"/> <textElement/> <text><![CDATA[C3]]></text> </staticText> </jr:columnHeader> <jr:columnFooter style="table_CH" height="30"/> <jr:detailCell style="table_TD" height="20"> <textField> <reportElement uuid="973ce891-454d-4afd-835f-e28e9015c263" x="0" y="0" width="90" height="20"/> <textElement/> <textFieldExpression><![CDATA[$F{C3}]]></textFieldExpression> </textField> </jr:detailCell> </jr:column> <jr:column width="90" uuid="83823efc-4c66-43a3-aea0-8e74e8ce2017"> <jr:tableHeader style="table_TH" height="30"/> <jr:tableFooter style="table_TH" height="30"/> <jr:columnHeader style="table_CH" height="30"> <staticText> <reportElement uuid="1023c6a0-dbbe-4324-a445-16c05ac53e05" x="0" y="0" width="90" height="30"/> <textElement/> <text><![CDATA[C4]]></text> </staticText> </jr:columnHeader> <jr:columnFooter style="table_CH" height="30"/> <jr:detailCell style="table_TD" height="20"> <textField> <reportElement uuid="5b74e899-3d6d-40b8-bf93-cd426e0cc369" x="0" y="0" width="90" height="20"/> <textElement/> <textFieldExpression><![CDATA[$F{C4}]]></textFieldExpression> </textField> </jr:detailCell> </jr:column> </jr:table> </componentElement> </band> </detail></jasperReport>[/code] With subreports is the same. Is there a property I am missing?
