Default value Expression in parametrs of report

[mpeshkov]

Hi, How to solve a problem?:

 

I have the template (jrxml file), which was created in iReport. There is parametr "Version"(java.lang.String, is not ForPrompting and default value expression:"version 1.0.2") When I fill this report from my program i get error:

net.sf.jasperreports.engine.JRException: Incompatible net.sf.jasperreports.engine.base.JRBaseParameter value assigned to parameter Version

 

(If set this parametr:

parameters.put("Version","test"); - All ok

)

 

How right to pass parametr with default value???

 

My code:

 

JasperReport jasperReport = (JasperReport) JRLoader.loadObject(filename));

JRParameter[] jrParam = jasperReport.getParameters();

Map parameters = new HashMap();

parameters.put("customerId",new Long("233301");

 

for (int i = 0; i < jrParam.length; i++)

if (!jrParam.isForPrompting())

if (jrParam.getValueClassName().equals("java.lang.String"))

parameters.put(jrParam.getName(), (Object) jrParam);

 

JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, connection));

 

JasperExportManager exp = new JasperExportManager();

exp.exportReportToPdfFile(jasperPrint,path);

[teodord]

Hi,

 

If the parameter is declared of type String, why do you put a jrParam instance in the map???

You should put a String value there.

 

Otherwise, you could simply not put anything and the default value will be used by the engine.

 

I hope this helps.

Teodor