Question

我想在一个静态文本上放置一个printWhenExpression，该条件表示只有在详细频段的特定列中至少有一个非空textField时才打印标签。

只有在该列中存在非空字段时才会打印列标题。

我尝试使用这个表达式：$F{textfield} != null，但它只适用于第一条记录，如果第一条记录为空且第二条记录没有空值，那么标签将被隐藏，我们希望它显示在哪里

如果您需要更多信息，请回复。

以下是我的.jrxml文件。

<?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="IdpPdfSignature1" pageWidth="296" pageHeight="300" whenNoDataType="AllSectionsNoDetail" columnWidth="296" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0" uuid="1c6e4be1-891b-4d0e-abfd-1c17f663d5be">
    <property name="ireport.scriptlethandling" value="0"/>
    <property name="ireport.encoding" value="UTF-8"/>
    <import value="net.sf.jasperreports.engine.*"/>
    <import value="java.util.*"/>
    <import value="net.sf.jasperreports.engine.data.*"/>
    <parameter name="mypic" class="java.io.InputStream" isForPrompting="false"/>
    <parameter name="mypic1" class="java.io.InputStream" isForPrompting="false"/>
    <parameter name="mypic2" class="java.io.InputStream" isForPrompting="false"/>
    <parameter name="group" class="java.lang.String" isForPrompting="false"/>
    <parameter name="device" class="java.lang.String" isForPrompting="false"/>
    <parameter name="timeperiod" class="java.lang.String" isForPrompting="false"/>
    <parameter name="customStartDate" class="java.util.Date" isForPrompting="false"/>
    <parameter name="customEndDate" class="java.util.Date" isForPrompting="false"/>
    <parameter name="footer" class="java.lang.String" isForPrompting="false"/>
    <field name="signatureID" class="java.lang.String">
        <fieldDescription><![CDATA[signatureID]]></fieldDescription>
    </field>
    <field name="signatureClassification" class="java.lang.String">
        <fieldDescription><![CDATA[signatureClassification]]></fieldDescription>
    </field>
    <field name="description" class="java.lang.String">
        <fieldDescription><![CDATA[description]]></fieldDescription>
    </field>
    <field name="count" class="java.lang.Long">
        <fieldDescription><![CDATA[count]]></fieldDescription>
    </field>
    <field name="formattedCount" class="java.lang.String"/>
    <field name="messageType" class="java.lang.String"/>
    <variable name="mypic" class="java.io.InputStream"/>
    <variable name="mypic1" class="java.io.InputStream"/>
    <variable name="mypic2" class="java.io.InputStream"/>
    <background>
        <band splitType="Stretch"/>
    </background>
    <title>
        <band splitType="Stretch"/>
    </title>
    <pageHeader>
        <band splitType="Stretch"/>
    </pageHeader>
    <columnHeader>
        <band height="16" splitType="Stretch">
            <staticText>
                <reportElement key="staticText-2" mode="Opaque" x="0" y="0" width="160" height="16" forecolor="#000000" backcolor="#CCCCCC" uuid="967c915b-1af1-4972-805f-0e3f365ba11c">
                    <printWhenExpression><![CDATA[new Boolean($F{messageType}!=null)]]></printWhenExpression>
                </reportElement>
                <box>
                    <pen lineWidth="0.25" lineColor="#000000"/>
                    <topPen lineWidth="0.25" lineColor="#000000"/>
                    <leftPen lineWidth="0.25" lineColor="#000000"/>
                    <bottomPen lineWidth="0.25" lineColor="#000000"/>
                    <rightPen lineWidth="0.25" lineColor="#000000"/>
                </box>
                <textElement textAlignment="Center" verticalAlignment="Middle">
                    <font fontName="Arial" size="10" isBold="true" pdfFontName="Helvetica-Bold"/>
                </textElement>
                <text><![CDATA[Signature Name]]></text>
            </staticText>
            <staticText>
                <reportElement key="staticText-3" mode="Opaque" x="210" y="0" width="86" height="16" forecolor="#000000" backcolor="#CCCCCC" uuid="a998a72e-01fa-4c27-ad7e-1e3a6c3408d2"/>
                <box>
                    <pen lineWidth="0.25" lineColor="#000000"/>
                    <topPen lineWidth="0.25" lineColor="#000000"/>
                    <leftPen lineWidth="0.25" lineColor="#000000"/>
                    <bottomPen lineWidth="0.25" lineColor="#000000"/>
                    <rightPen lineWidth="0.25" lineColor="#000000"/>
                </box>
                <textElement textAlignment="Center" verticalAlignment="Middle">
                    <font fontName="Arial" size="10" isBold="true" pdfFontName="Helvetica-Bold"/>
                </textElement>
                <text><![CDATA[Event Count]]></text>
            </staticText>
            <staticText>
                <reportElement key="staticText-11" mode="Opaque" x="160" y="0" width="50" height="16" forecolor="#000000" backcolor="#CCCCCC" uuid="5170b4a6-3531-412d-9f8f-bc32dc4de0be">
                    <printWhenExpression><![CDATA[new Boolean($F{messageType}!=null)]]></printWhenExpression>
                </reportElement>
                <box>
                    <pen lineWidth="0.25" lineColor="#000000"/>
                    <topPen lineWidth="0.25" lineColor="#000000"/>
                    <leftPen lineWidth="0.25" lineColor="#000000"/>
                    <bottomPen lineWidth="0.25" lineColor="#000000"/>
                    <rightPen lineWidth="0.25" lineColor="#000000"/>
                </box>
                <textElement textAlignment="Center" verticalAlignment="Middle">
                    <font fontName="Arial" size="10" isBold="true" pdfFontName="Helvetica-Bold"/>
                </textElement>
                <text><![CDATA[Type]]></text>
            </staticText>
        </band>
    </columnHeader>
    <detail>
        <band height="16" splitType="Stretch">
            <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                <reportElement key="textField-7" stretchType="RelativeToTallestObject" x="160" y="0" width="50" height="16" uuid="917d3aff-44a7-4a26-865a-d466aff3ab00">
                    <printWhenExpression><![CDATA[new Boolean($F{messageType}!=null)]]></printWhenExpression>
                </reportElement>
                <box leftPadding="5">
                    <topPen lineWidth="0.25" lineColor="#999999"/>
                    <leftPen lineWidth="0.25" lineColor="#999999"/>
                    <bottomPen lineWidth="0.25" lineColor="#999999"/>
                    <rightPen lineWidth="0.25" lineColor="#999999"/>
                </box>
                <textElement textAlignment="Left">
                    <font fontName="Arial"/>
                </textElement>
                <textFieldExpression><![CDATA[$F{messageType}]]></textFieldExpression>
            </textField>
            <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                <reportElement key="textField" stretchType="RelativeToTallestObject" x="0" y="0" width="160" height="16" uuid="72492119-a45f-49c5-8fb8-19252c57e402">
                    <printWhenExpression><![CDATA[new Boolean($F{messageType}!=null)]]></printWhenExpression>
                </reportElement>
                <box leftPadding="5" rightPadding="10">
                    <topPen lineWidth="0.25" lineColor="#999999"/>
                    <leftPen lineWidth="0.25" lineColor="#999999"/>
                    <bottomPen lineWidth="0.25" lineColor="#999999"/>
                    <rightPen lineWidth="0.25" lineColor="#999999"/>
                </box>
                <textElement>
                    <font fontName="Arial"/>
                </textElement>
                <textFieldExpression><![CDATA[$F{signatureClassification}]]></textFieldExpression>
            </textField>
            <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                <reportElement key="textField" stretchType="RelativeToTallestObject" x="210" y="0" width="86" height="16" uuid="223be44f-8565-40e3-9d43-0f13b4e159b7"/>
                <box leftPadding="5" rightPadding="10">
                    <topPen lineWidth="0.25" lineColor="#999999"/>
                    <leftPen lineWidth="0.25" lineColor="#999999"/>
                    <bottomPen lineWidth="0.25" lineColor="#999999"/>
                    <rightPen lineWidth="0.25" lineColor="#999999"/>
                </box>
                <textElement textAlignment="Right">
                    <font fontName="Arial"/>
                </textElement>
                <textFieldExpression><![CDATA[$F{formattedCount}]]></textFieldExpression>
            </textField>
        </band>
    </detail>
    <columnFooter>
        <band splitType="Stretch"/>
    </columnFooter>
    <pageFooter>
        <band splitType="Stretch"/>
    </pageFooter>
    <summary>
        <band splitType="Stretch"/>
    </summary>
</jasperReport>

Answer 1

您可以使用表组件来实现此目的，而不是使用静态文本，方法是在表的列标题的“Column Print When”属性下的条件下给出打印。

即。列打印时= $ F {messageType}！= null

PFB更正了JRXML：

<summary>

    <band height="55" splitType="Stretch">
        <componentElement>
            <reportElement uuid="632c8fad-e35f-4b89-b28e-b363b0711c06" x="0" y="0" width="270" height="55"/>
            <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="bf16282a-8672-46cb-9849-4966b5f8c969">
                    <dataSourceExpression><![CDATA[new net.sf.jasperreports.engine.JREmptyDataSource(1)]]></dataSourceExpression>
                </datasetRun>
                <jr:column width="90" uuid="00429e67-6d71-4b66-9eb4-22d0c649e7a4">
                    <jr:columnHeader height="30" rowSpan="1">
                        <staticText>
                            <reportElement uuid="a62a81ca-ceae-4178-9e4e-6ca17fc89c69" key="staticText-2" mode="Opaque" x="0" y="0" width="90" height="30" forecolor="#000000" backcolor="#CCCCCC">
                                <printWhenExpression><![CDATA[new Boolean($F{messageType}!=null)]]></printWhenExpression>
                            </reportElement>
                            <box>
                                <pen lineWidth="0.25" lineColor="#000000"/>
                                <topPen lineWidth="0.25" lineColor="#000000"/>
                                <leftPen lineWidth="0.25" lineColor="#000000"/>
                                <bottomPen lineWidth="0.25" lineColor="#000000"/>
                                <rightPen lineWidth="0.25" lineColor="#000000"/>
                            </box>
                            <textElement textAlignment="Center" verticalAlignment="Middle">
                                <font fontName="Arial" isBold="true" pdfFontName="Helvetica-Bold"/>
                            </textElement>
                            <text><![CDATA[Signature Name]]></text>
                        </staticText>
                    </jr:columnHeader>
                    <jr:detailCell height="20" rowSpan="1">
                        <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                            <reportElement uuid="cb654043-45a4-4742-86ed-ed9818716db2" key="textField" stretchType="RelativeToTallestObject" x="0" y="0" width="90" height="20">
                                <printWhenExpression><![CDATA[new Boolean($F{messageType}!=null)]]></printWhenExpression>
                            </reportElement>
                            <box leftPadding="5" rightPadding="10">
                                <topPen lineWidth="0.25" lineColor="#999999"/>
                                <leftPen lineWidth="0.25" lineColor="#999999"/>
                                <bottomPen lineWidth="0.25" lineColor="#999999"/>
                                <rightPen lineWidth="0.25" lineColor="#999999"/>
                            </box>
                            <textElement>
                                <font fontName="Arial"/>
                            </textElement>
                            <textFieldExpression><![CDATA[$F{signatureClassification}]]></textFieldExpression>
                        </textField>
                    </jr:detailCell>
                </jr:column>
                <jr:column width="90" uuid="7ebf1fdd-52e5-43da-96f0-1c01a7cb0876">
                    <printWhenExpression><![CDATA[$F{messageType}!=null]]></printWhenExpression>
                    <jr:columnHeader height="30" rowSpan="1">
                        <staticText>
                            <reportElement uuid="d96cce84-1318-49aa-a6d2-3a17e4329ef3" key="staticText-11" mode="Opaque" x="0" y="0" width="90" height="30" forecolor="#000000" backcolor="#CCCCCC">
                                <printWhenExpression><![CDATA[new Boolean($F{messageType}!=null)]]></printWhenExpression>
                            </reportElement>
                            <box>
                                <pen lineWidth="0.25" lineColor="#000000"/>
                                <topPen lineWidth="0.25" lineColor="#000000"/>
                                <leftPen lineWidth="0.25" lineColor="#000000"/>
                                <bottomPen lineWidth="0.25" lineColor="#000000"/>
                                <rightPen lineWidth="0.25" lineColor="#000000"/>
                            </box>
                            <textElement textAlignment="Center" verticalAlignment="Middle">
                                <font fontName="Arial" isBold="true" pdfFontName="Helvetica-Bold"/>
                            </textElement>
                            <text><![CDATA[Type]]></text>
                        </staticText>
                    </jr:columnHeader>
                    <jr:detailCell height="20" rowSpan="1">
                        <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                            <reportElement uuid="4832a90d-505e-4f13-87bf-0a7fe6e3a00f" key="textField-7" stretchType="RelativeToTallestObject" x="0" y="0" width="90" height="20">
                                <printWhenExpression><![CDATA[$F{messageType}]]></printWhenExpression>
                            </reportElement>
                            <box leftPadding="5">
                                <topPen lineWidth="0.25" lineColor="#999999"/>
                                <leftPen lineWidth="0.25" lineColor="#999999"/>
                                <bottomPen lineWidth="0.25" lineColor="#999999"/>
                                <rightPen lineWidth="0.25" lineColor="#999999"/>
                            </box>
                            <textElement textAlignment="Left">
                                <font fontName="Arial"/>
                            </textElement>
                            <textFieldExpression><![CDATA[$F{messageType}]]></textFieldExpression>
                        </textField>
                    </jr:detailCell>
                </jr:column>
                <jr:column width="90" uuid="89b50640-0509-4b61-8aa3-aa68eb3e6685">
                    <jr:columnHeader height="30" rowSpan="1">
                        <staticText>
                            <reportElement uuid="fe68d8bf-3f0d-4202-a53c-8c6f328e4d16" key="staticText-3" mode="Opaque" x="0" y="0" width="90" height="30" forecolor="#000000" backcolor="#CCCCCC"/>
                            <box>
                                <pen lineWidth="0.25" lineColor="#000000"/>
                                <topPen lineWidth="0.25" lineColor="#000000"/>
                                <leftPen lineWidth="0.25" lineColor="#000000"/>
                                <bottomPen lineWidth="0.25" lineColor="#000000"/>
                                <rightPen lineWidth="0.25" lineColor="#000000"/>
                            </box>
                            <textElement textAlignment="Center" verticalAlignment="Middle">
                                <font fontName="Arial" isBold="true" pdfFontName="Helvetica-Bold"/>
                            </textElement>
                            <text><![CDATA[Event Count]]></text>
                        </staticText>
                    </jr:columnHeader>
                    <jr:detailCell height="20" rowSpan="1">
                        <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                            <reportElement uuid="169af53a-b587-4d63-93f8-cb9296c89f4c" key="textField" stretchType="RelativeToTallestObject" x="0" y="0" width="90" height="20"/>
                            <box leftPadding="5" rightPadding="10">
                                <topPen lineWidth="0.25" lineColor="#999999"/>
                                <leftPen lineWidth="0.25" lineColor="#999999"/>
                                <bottomPen lineWidth="0.25" lineColor="#999999"/>
                                <rightPen lineWidth="0.25" lineColor="#999999"/>
                            </box>
                            <textElement textAlignment="Right">
                                <font fontName="Arial"/>
                            </textElement>
                            <textFieldExpression><![CDATA[$F{formattedCount}]]></textFieldExpression>
                        </textField>
                    </jr:detailCell>
                </jr:column>
            </jr:table>
        </componentElement>
    </band>
</summary>

希望这可以解决您的问题。

此致

Srikanth Kattam

当表达式显示时打印静态文本如果细节带中至少有一个非空字段

1 个答案: