Question

我想在数据为空时删除列表组件空间，我已经尝试过（当空白时删除行）选项但是没有用，它打印带有列表组件高度的空间。感谢帮助。

var url = "http://ec.europa.eu/budg/inforeuro/api/public/monthly-rates"

$.ajax({
    crossOrigin: true,
    type: "GET",
    crossDomain: true,
    async: false,
    url: url,
    dataType: 'jsonp',
    jsonpCallback: 'jsonCallback',
    contentType: "application/json",
    success: function (data) {
        console.log("Success");
    },
    error: function () {
        console.log("Ajax Error Occurred");
    }
});

Answer 1

尝试在list组件中包含所有Frame个组件，并为isRemoveLineWhenBlank rue启用所有组件，包括Frame组件。以下只是一个示例

<detail>
    <band height="125" splitType="Stretch">
        <frame>
            <reportElement positionType="Float" stretchType="RelativeToTallestObject" x="124" y="114" width="393" height="17" isRemoveLineWhenBlank="true" isPrintWhenDetailOverflows="true" uuid="69f3030b-5ff6-4689-aa2f-d929dc017fc4"/>
            <componentElement>
                <reportElement x="5" y="13" width="797" height="88" uuid="d03a66cd-2364-4705-b9c1-7ccdc1f03542"/>
                <jr:list 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="dataset1" uuid="55af5621-ba24-4f19-8c1d-496627ce93c6">
                        <dataSourceExpression><![CDATA[new net.sf.jasperreports.engine.JREmptyDataSource(1)]]></dataSourceExpression>
                    </datasetRun>
                    <jr:listContents height="88" width="797">
                        <staticText>
                            <reportElement x="22" y="0" width="100" height="20" uuid="3a8c6a5e-2337-40b6-9464-984655b240c1"/>
                            <text><![CDATA[Parent List]]></text>
                        </staticText>
                        <staticText>
                            <reportElement x="186" y="0" width="100" height="20" uuid="3961e703-a32a-4c98-98fc-5b5fd745962a"/>
                            <text><![CDATA[Parent List]]></text>
                        </staticText>
                        <staticText>
                            <reportElement x="350" y="0" width="100" height="20" uuid="c75ef0b2-9d7b-4d53-89a9-60407300b1f5"/>
                            <text><![CDATA[Parent List]]></text>
                        </staticText>
                        <componentElement>
                            <reportElement x="0" y="20" width="797" height="26" uuid="3a0c69f8-788d-4e30-b9ab-3a5a7e6847b2"/>
                            <jr:list>
                                <datasetRun subDataset="dataset2" uuid="109058e7-c925-4ab2-ae35-4d71a8868623">
                                    <dataSourceExpression><![CDATA[new net.sf.jasperreports.engine.JREmptyDataSource(1)]]></dataSourceExpression>
                                </datasetRun>
                                <jr:listContents height="26" width="797">
                                    <staticText>
                                        <reportElement x="20" y="4" width="100" height="20" uuid="528cdfee-2066-4c73-bfa4-01c71368e999"/>
                                        <text><![CDATA[child List]]></text>
                                    </staticText>
                                    <staticText>
                                        <reportElement x="190" y="4" width="100" height="20" uuid="3187542d-7f8d-4770-9d84-0a0a5ee2c841"/>
                                        <text><![CDATA[Child List]]></text>
                                    </staticText>
                                </jr:listContents>
                            </jr:list>
                        </componentElement>
                        <staticText>
                            <reportElement x="24" y="52" width="100" height="20" uuid="83d4dfff-8142-4e20-a929-e37a23ea2c20"/>
                            <text><![CDATA[Total]]></text>
                        </staticText>
                    </jr:listContents>
                </jr:list>
            </componentElement>
        </frame>
    </band>
</detail>

希望这可以帮助你。

删除jasper ireport中列表组件的空间

1 个答案: