crosstab in title-band raises exception in jasper studio preview

[tietjens]

when placing a crosstab in the title band of a report the folowing exception is thrown:

net.sf.jasperreports.engine.JRException: net.sf.jasperreports.engine.JRRuntimeException: Error incrementing crosstab dataset.
at com.jaspersoft.studio.editor.preview.view.control.ReportControler.fillReport(ReportControler.java:524)
at com.jaspersoft.studio.editor.preview.view.control.ReportControler.access$20(ReportControler.java:499)
at com.jaspersoft.studio.editor.preview.view.control.ReportControler$5.run(ReportControler.java:380)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: net.sf.jasperreports.engine.JRRuntimeException: Error incrementing crosstab dataset.
at net.sf.jasperreports.engine.fill.JRFillCrosstab$JRFillCrosstabDataset.customIncrement(JRFillCrosstab.java:1220)
at net.sf.jasperreports.engine.fill.JRFillElementDataset.increment(JRFillElementDataset.java:191)
at net.sf.jasperreports.engine.fill.JRCalculator.calculateVariables(JRCalculator.java:191)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillDetail(JRVerticalFiller.java:739)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportStart(JRVerticalFiller.java:259)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:119)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:558)
at net.sf.jasperreports.engine.fill.BaseFillHandle$ReportFill.run(BaseFillHandle.java:119)
at java.lang.Thread.run(Thread.java:745)
Caused by: net.sf.jasperreports.engine.JRException: Crosstab data has already been processed.
at net.sf.jasperreports.crosstabs.fill.calculation.BucketingService.addData(BucketingService.java:317)
at net.sf.jasperreports.engine.fill.JRFillCrosstab$JRFillCrosstabDataset.customIncrement(JRFillCrosstab.java:1216)
... 8 more

does anyone have an idea what needs to be configured in the crosstab to make this work?

Thank you

[hozawa]

Try placing the crosstab in the summary band. If that works, create that report and create a new report and place a that report as a subreport.