How to remove frame with empty textFields?

2019-01-28 08:54发布

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问题:

I have a frame, I am using that frame to display the gender field. I have added two textfields in that frame, one to display gender label and other to display gender field value. When gender fields are empty Jasper is rendering empty line, I want to remove this empty line.

<frame>
            <reportElement key="govi" positionType="Float" stretchType="RelativeToTallestObject" x="124" y="154" width="403" height="17" isRemoveLineWhenBlank="true" isPrintWhenDetailOverflows="true" uuid="ff3e33f8-cc51-45c3-a3ed-513832d6e180"/>
            <staticText>
                <reportElement x="0" y="0" width="141" height="15" uuid="9700c67a-9385-4dd5-8626-23a8261bc2b5"/>
                <text><![CDATA[Person with Disability ]]></text>
            </staticText>
            <textField isStretchWithOverflow="true">
                <reportElement positionType="Float" stretchType="RelativeToTallestObject" x="140" y="0" width="245" height="15" isPrintWhenDetailOverflows="true" uuid="69f221ef-ae6b-40c6-98fd-dec7b91a6269"/>
                <textElement textAlignment="Justified">
                    <font size="12" isBold="false"/>
                </textElement>
                <textFieldExpression><![CDATA[($F{is_pd} ? "Yes" : "No")]]></textFieldExpression>
            </textField>
        </frame>
        <frame>
            <reportElement key="genderField" positionType="Float" stretchType="RelativeToTallestObject" x="124" y="114" width="393" height="15" isPrintWhenDetailOverflows="true" uuid="464b5c89-e158-4783-8f21-7b05f567e55e"/>
            <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                <reportElement positionType="Float" stretchType="RelativeToTallestObject" x="0" y="0" width="104" height="15" isRemoveLineWhenBlank="true" uuid="0a77a60f-19ef-4634-84df-7a7f7f94ed14"/>
                <textElement>
                    <font size="10" isBold="false"/>
                </textElement>
                <textFieldExpression><![CDATA[($F{country_id} != 1 ? "Gender" : null )]]></textFieldExpression>
            </textField>
            <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                <reportElement positionType="Float" stretchType="RelativeToTallestObject" x="140" y="0" width="231" height="15" isRemoveLineWhenBlank="true" uuid="884fe0ef-654c-46e0-8399-d9fed8722a76"/>
                <textElement>
                    <font size="12" isBold="false"/>
                </textElement>
                <textFieldExpression><![CDATA[($F{country_id} != 1 ? $F{gender} : null )]]></textFieldExpression>
            </textField>
        </frame>
        <frame>
            <reportElement key="govi" positionType="Float" stretchType="RelativeToTallestObject" x="124" y="134" width="402" height="17" isRemoveLineWhenBlank="true" isPrintWhenDetailOverflows="true" uuid="a4cbd87c-ea2d-4952-8bc4-0a7e6e655e28"/>
            <staticText>
                <reportElement x="0" y="0" width="69" height="15" uuid="e289c5be-91c4-4a74-b3d6-57c800401d0a"/>
                <text><![CDATA[Category]]></text>
            </staticText>
            <textField isStretchWithOverflow="true">
                <reportElement positionType="Float" stretchType="RelativeToTallestObject" x="140" y="0" width="231" height="15" isRemoveLineWhenBlank="true" uuid="c01465ce-fb3d-47ba-9c29-bdfd7be7424f"/>
                <textElement>
                    <font size="12" isBold="false"/>
                </textElement>
                <textFieldExpression><![CDATA[($F{category_id} == 1 ? "GEN" : ($F{category_id} == 2 ? "OBC" : ($F{category_id}==3 ? "SC" : "ST")))]]></textFieldExpression>
            </textField>
        </frame>

I have applied isRemoveLineWhenBlank="true" on frame as well as two textfield,isBlankWhenNull="true" is applied on both the textfields still no success. Am I missing something?

回答1:

It is simple to fix your issue - you should set isRemoveLineWhenBlank="true" for the first textField (with ($F{country_id} != 1 ? "Gender" : null epxression). In this case everything will be fine.

<textField isStretchWithOverflow="true" isBlankWhenNull="true">
    <reportElement positionType="Float" stretchType="RelativeToTallestObject" x="0" y="0" width="104" height="15" isRemoveLineWhenBlank="true"/>
    <textElement>
        <font size="10" isBold="false"/>
    </textElement>
    <textFieldExpression><![CDATA[($f{country_id} != 1 ? "Gender" : null )]]></textFieldExpression>
</textField>

I modified your template for check as

<?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="Hide frame" pageWidth="595" pageHeight="842" whenNoDataType="AllSectionsNoDetail" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20">
    <property name="com.jaspersoft.studio.data.defaultdataadapter" value="One Empty Record"/>
    <parameter name="country_id" class="java.lang.Integer"/>
    <parameter name="gender" class="java.lang.String"/>
    <title>
        <band height="742">
            <textField>
                <reportElement positionType="Float" x="0" y="30" width="430" height="15" />
                <textFieldExpression><![CDATA["First line"]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement positionType="Float" x="0" y="60" width="430" height="15" />
                <textFieldExpression><![CDATA["Third line"]]></textFieldExpression>
            </textField>
            <frame>
                <reportElement key="genderField" positionType="Float" stretchType="RelativeToTallestObject" x="0" y="45" width="393" height="15" isRemoveLineWhenBlank="true" isPrintWhenDetailOverflows="true" />
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement positionType="Float" stretchType="RelativeToTallestObject" x="0" y="0" width="104" height="15" isRemoveLineWhenBlank="true" />
                    <textElement>
                        <font size="10" isBold="false"/>
                    </textElement>
                    <textFieldExpression><![CDATA[($P{country_id} != 1 ? "Gender" : null )]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement positionType="Float" stretchType="RelativeToTallestObject" x="140" y="0" width="231" height="15" isRemoveLineWhenBlank="true" />
                    <textElement>
                        <font size="12" isBold="false"/>
                    </textElement>
                    <textFieldExpression><![CDATA[($P{country_id} != 1 ? $P{gender} : null )]]></textFieldExpression>
                </textField>
            </frame>
        </band>
    </title>
</jasperReport>

and it works like a charm:

You get the result above for example using combinations of parameters like:

  • country_id=1
  • gender="M"

In case using this values:

  • country_id=3
  • gender="F"

the reslut will be:

You can also simplify this fragment as at this example:

<?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="Hide frame" pageWidth="595" pageHeight="842" whenNoDataType="AllSectionsNoDetail" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20">
    <property name="com.jaspersoft.studio.data.defaultdataadapter" value="One Empty Record"/>
    <parameter name="country_id" class="java.lang.Integer"/>
    <parameter name="gender" class="java.lang.String"/>
    <title>
        <band height="742">
            <textField>
                <reportElement positionType="Float" x="0" y="30" width="430" height="15" />
                <textFieldExpression><![CDATA["First line"]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement positionType="Float" x="0" y="60" width="430" height="15" />
                <textFieldExpression><![CDATA["Third line"]]></textFieldExpression>
            </textField>
            <frame>
                <reportElement positionType="Float" x="0" y="45" width="430" height="15" isRemoveLineWhenBlank="true" >
                    <printWhenExpression><![CDATA[$P{country_id} != 1 && $P{gender} != null]]></printWhenExpression>
                </reportElement>
                <textField isBlankWhenNull="true">
                    <reportElement x="0" y="0" width="100" height="15" />
                    <textFieldExpression><![CDATA[$P{country_id} != 1 ? "Gender" : null]]></textFieldExpression>
                </textField>
                <textField isBlankWhenNull="true">
                    <reportElement x="100" y="0" width="100" height="15" />
                    <textFieldExpression><![CDATA[$P{country_id} != 1 ? $P{gender} : null]]></textFieldExpression>
                </textField>
            </frame>
        </band>
    </title>
</jasperReport>

In this sample the isRemoveLineWhenBlank and printWhenExpression used only for frame element.

It is works the same as this example:

<?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="Hide frame" pageWidth="595" pageHeight="842" whenNoDataType="AllSectionsNoDetail" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20">
    <property name="com.jaspersoft.studio.data.defaultdataadapter" value="One Empty Record"/>
    <parameter name="country_id" class="java.lang.Integer"/>
    <parameter name="gender" class="java.lang.String"/>
    <title>
        <band height="742">
            <textField>
                <reportElement positionType="Float" x="0" y="30" width="430" height="15"/>
                <textFieldExpression><![CDATA["First line"]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement positionType="Float" x="0" y="60" width="430" height="15"/>
                <textFieldExpression><![CDATA["Third line"]]></textFieldExpression>
            </textField>
            <frame>
                <reportElement positionType="Float" x="0" y="45" width="430" height="15" isRemoveLineWhenBlank="true"/>
                <textField isBlankWhenNull="true">
                    <reportElement x="0" y="0" width="100" height="15" isRemoveLineWhenBlank="true"/>
                    <textFieldExpression><![CDATA[$P{country_id} != 1 ? "Gender" : null]]></textFieldExpression>
                </textField>
                <textField isBlankWhenNull="true">
                    <reportElement x="100" y="0" width="100" height="15" isRemoveLineWhenBlank="true"/>
                    <textFieldExpression><![CDATA[$P{country_id} != 1 ? $P{gender} : null]]></textFieldExpression>
                </textField>
            </frame>
        </band>
    </title>
</jasperReport>

The result will be the same, for example in case country_id == 1:

UPDATE

You forgot to set isRemoveLineWhenBlank="true" for frame with gender in your new snippet. After making this fix your new sample also works well in iReport 5.6.0. I replaced fields with parameters for testing purpose and change the order of frames to hide the frame with gender.

The jrxml file:

<?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="Hide frame" pageWidth="595" pageHeight="842" whenNoDataType="AllSectionsNoDetail" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20">
    <property name="com.jaspersoft.studio.data.defaultdataadapter" value="One Empty Record"/>
    <parameter name="country_id" class="java.lang.Integer"/>
    <parameter name="gender" class="java.lang.String"/>
    <parameter name="is_pd" class="java.lang.Boolean">
        <defaultValueExpression><![CDATA[true]]></defaultValueExpression>
    </parameter>
    <parameter name="category_id" class="java.lang.Integer">
        <defaultValueExpression><![CDATA[1]]></defaultValueExpression>
    </parameter>
    <title>
        <band height="742">
            <frame>
                <reportElement key="govi" positionType="Float" stretchType="RelativeToTallestObject" x="124" y="129" width="403" height="17" isRemoveLineWhenBlank="true" isPrintWhenDetailOverflows="true"/>
                <staticText>
                    <reportElement x="0" y="0" width="141" height="15"/>
                    <text><![CDATA[Person with Disability ]]></text>
                </staticText>
                <textField isStretchWithOverflow="true">
                    <reportElement positionType="Float" stretchType="RelativeToTallestObject" x="140" y="0" width="245" height="15" isPrintWhenDetailOverflows="true"/>
                    <textElement textAlignment="Justified">
                        <font size="12" isBold="false"/>
                    </textElement>
                    <textFieldExpression><![CDATA[$P{is_pd} ? "Yes" : "No"]]></textFieldExpression>
                </textField>
            </frame>
            <frame>
                <reportElement key="genderField" positionType="Float" stretchType="RelativeToTallestObject" x="124" y="114" width="393" height="15" isRemoveLineWhenBlank="true" isPrintWhenDetailOverflows="true"/>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement positionType="Float" stretchType="RelativeToTallestObject" x="0" y="0" width="104" height="15" isRemoveLineWhenBlank="true"/>
                    <textElement>
                        <font size="10" isBold="false"/>
                    </textElement>
                    <textFieldExpression><![CDATA[($P{country_id} != 1 ? "Gender" : null )]]></textFieldExpression>
                </textField>
                <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                    <reportElement positionType="Float" stretchType="RelativeToTallestObject" x="140" y="0" width="231" height="15" isRemoveLineWhenBlank="true"/>
                    <textElement>
                        <font size="12" isBold="false"/>
                    </textElement>
                    <textFieldExpression><![CDATA[($P{country_id} != 1 ? $P{gender} : null )]]></textFieldExpression>
                </textField>
            </frame>
            <frame>
                <reportElement key="govi" positionType="Float" stretchType="RelativeToTallestObject" x="124" y="97" width="402" height="17" isRemoveLineWhenBlank="true" isPrintWhenDetailOverflows="true"/>
                <staticText>
                    <reportElement x="0" y="0" width="69" height="15"/>
                    <text><![CDATA[Category]]></text>
                </staticText>
                <textField isStretchWithOverflow="true">
                    <reportElement positionType="Float" stretchType="RelativeToTallestObject" x="140" y="0" width="231" height="15" isRemoveLineWhenBlank="true"/>
                    <textElement>
                        <font size="12" isBold="false"/>
                    </textElement>
                    <textFieldExpression><![CDATA[($P{category_id} == 1 ? "GEN" : ($P{category_id} == 2 ? "OBC" : ($P{category_id}==3 ? "SC" : "ST")))]]></textFieldExpression>
                </textField>
            </frame>
        </band>
    </title>
</jasperReport>

The design in iReport looks like:

I set parameters like this:

  • country_id = 1
  • gender - empty
  • is_pd - default value (= true)
  • category_id - default value (=1)

The generated report for this parameters looks like:

In case using this set

  • country_id = 2
  • gender = "M"
  • is_pd - default value (= true)
  • category_id - default value (=1)

the result will be:



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