Jaspersoft Studio 6.3.1 - Functions in expressions for Style Templates not working

[amonse]

Hello,

I need to define a variable path to a Style Templet. The path is affected by a parameter. I tried it with Styles > Add Style Template Reference > Custom expression (...) but in this expression all uses of functions or variables results in failure.

I figured out that functions are not evaluated nor are variables.

Is there a way to get this working or does someone know a workaround?

[lucianc]

Variables do not work because style templates are loaded before variables are initialized.  Functions and parameters should work fine.

If you have an example with a function not working in a style template expression, post a full JRXML to reproduce the problem (and detail what "results in failure" means).

Regards,

Lucian

[amonse]

Results in failure means, that I got a message window with "The selected resource is not a valid template style".

I construct a little sample. Below is the jrxml file. With the FLOOR function, jasper is unable to find the style template. Without a function everything works fine.

<?xml version="1.0" encoding="UTF-8"?><!-- Created with Jaspersoft Studio version 6.3.1.final using JasperReports Library version 6.3.1  --><!-- 2016-12-21T13:41:19 --><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="TEST" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="dacf0ab0-76b4-42bf-b619-531bbc6f3a4e">    <template><![CDATA[(FLOOR(4.5 ) == 4.0) ? "C:\Users\amonse\JaspersoftWorkspace\MyReports\TEST_STYLE.jrtx" : "C:\Users\amonse\JaspersoftWorkspace\MyReports\TEST_STYLE.jrtx"]]></template>    <queryString>        <![CDATA[]]>    </queryString>    <background>        <band splitType="Stretch"/>    </background>    <title>        <band height="79" splitType="Stretch"/>    </title>    <pageHeader>        <band height="35" splitType="Stretch"/>    </pageHeader>    <columnHeader>        <band height="61" splitType="Stretch"/>    </columnHeader>    <detail>        <band height="125" splitType="Stretch">            <textField>                <reportElement x="135" y="53" width="100" height="30" uuid="15d1ebaf-30ab-4c1b-afbc-34789b8f8fb1"/>                <textFieldExpression><![CDATA[FLOOR(4.5)]]></textFieldExpression>            </textField>        </band>    </detail>    <columnFooter>        <band height="45" splitType="Stretch"/>    </columnFooter>    <pageFooter>        <band height="54" splitType="Stretch"/>    </pageFooter>    <summary>        <band height="42" splitType="Stretch"/>    </summary></jasperReport>[/code]

 

[lucianc]

The style template expressions works fine when you run the report, but it does seem that Jaspersoft Studio has a problem with it in design mode.

I suggest you to log a bug for Studio in the project Trackers.

[amonse]

Bug added to the Tracker:
http://community.jaspersoft.com/jaspersoft-studio/issues/9031