[Column Footer only in first page]

Hi everyone

 

I have the folowing problem:

 

I have a Column Footer reserved area in my report that must appears only in first page, in second pages and others the band Colum Footer must to hide and the detail band needs to expand, filling all the space.

[Customize chart class]

Don't lost your time with Customize class parameter on iReport, It's seems not function correctly!

 

I generated my Customize class and defined the settings on code after that I exported the graphic for image and ploted on Image area on iReport template.

 

This link will help you:

http://members.lycos.co.uk/oderin/tutorials/JavaReporting/JavaReportingTutorial.htm

 

 

And this one will help you to customize:

http://www.java2s.com/Code/Java/Chart/JFreeChartBarChartDemo1.htm

 

 

I hope I have helped you!

[Printing PDF report from stored byte array]

I need print a report from a byte array that is stored on database.

I already have the byte array.

The code is the following:

 

Code:

InputStream bays = new ByteArrayInputStream(auto.getArquivo());

JasperPrint print = (JasperPrint) JRLoader.loadObject(inByteArray) ;//Error

JasperViewer viewer = new JasperViewer(print, false);

viewer.setVisible(true);

 

In the tag Error, the Exception is the following:

 

StreamCorruptedException invalid stream reader

 

Error loading object from InputStream

[iReport 1.2.7 hanging during the report generate]

I have a report with a chart that I need use a customize class. When I put the class name in the tag customize class the iReport hang and show on Threads display the following message: "generating report".

 

Anyone can help, Is it a iReport bug?

[Customize chart class]

When occurs this error, I was using the following verions:

iReport: 0.5.1

JasperReports: 1.0.1

 

But now I updated the both to the current version:

 

iReport: 1.2.7

JasperReports: 1.2.7

 

And now the erro is the following:

 

Code:

  Filling report... 
  Locale: português (Brasil)
  Time zone: default
Error filling print... null
java.lang.NullPointerException      at net.sf.jasperreports.charts.fill.JRFillCategoryDataset.customIncrement(JRFillCategoryDataset.java:141)      at net.sf.jasperreports.engine.fill.JRFillElementDataset.increment(JRFillElementDataset.java:169)      at net.sf.jasperreports.engine.fill.JRCalculator.calculateVariables(JRCalculator.java:154)      at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillDetail(JRVerticalFiller.java:621)      at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportStart(JRVerticalFiller.java:228)      at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:128)      at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:758)      at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:685)      at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:89)      at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:601)      at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:517)      at it.businesslogic.ireport.IReportCompiler.run(IReportCompiler.java:723)      at java.lang.Thread.run(Unknown Source)  
Print not filled. Try to use an EmptyDataSource...! 

 

Thank you teodord

[Customize chart class]

I'm trying to customize a bar chart. I have implemented a JRChartCustomizer with this snipet code:

 

 

Code:

import org.jfree.chart.JFreeChart;
import org.jfree.chart.renderer.category.BarRenderer;
import net.sf.jasperreports.engine.JRChart;
import net.sf.jasperreports.engine.JRChartCustomizer;


public class BarChartCustomizer implements JRChartCustomizer {
 
	public void customize(JFreeChart chart, JRChart jasperChart) {
		
		BarRenderer renderer = (BarRenderer) chart.getCategoryPlot().getRenderer();
		
		renderer.setMaxBarWidth (0.1);

	}

}

 

 

But when I execute the report the following error occurs:

 

Code:

[code]Filling report... Error filling print... net.sf.jasperreports.engine.JRRuntimeException: BarChartCustomizer at net.sf.jasperreports.engine.fill.JRFillChart.<init>(JRFillChart.java:253) at net.sf.jasperreports.engine.fill.JRFillObjectFactory.getChart(JRFillObjectFactory.java:464) at net.sf.jasperreports.engine.base.JRBaseChart.getCopy(JRBaseChart.java:430) at net.sf.jasperreports.engine.fill.JRFillElementGroup.<init>(JRFillElementGroup.java:87) at net.sf.jasperreports.engine.fill.JRFillBand.<init>(JRFillBand.java:113) at net.sf.jasperreports.engine.fill.JRFillObjectFactory.getBand(JRFillObjectFactory.java:287) at net.sf.jasperreports.engine.fill.JRBaseFiller.<init>(JRBaseFiller.java:579) at net.sf.jasperreports.engine.fill.JRVerticalFiller.<init>(JRVerticalFiller.java:93) at net.sf.jasperreports.engine.fill.JRVerticalFiller.<init>(JRVerticalFiller.java:75) at net.sf.jasperreports.engine.fill.JRFiller.createFiller(JRFiller.java:113) at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:83) at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:428) at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:344) at it.businesslogic.ireport.IReportCompiler.run(IReportCompiler.java:604) at java.lang.Thread.run(Unknown Source) Print not filled. Try to use an EmptyDataSource...!

 

By the web application, the error is the same.

 

Please everyone, what should I do???

[Problem with bar chart]

Data:

iReport version: 0.5.1

Chart type: Bar Chart

Architeture: Web

 

When I have only one value on X axis, the image displayed is a big square filled, not a bar chart is displayed.

 

Someone can help me??

[Problem with bar chart]

Data:

iReport version: 0.5.1

Chart type: Bar Chart

Architeture: Web

 

When I have only one value on X axis, the image displayed is a big square filled, not a bar chart is displayed.

 

Someone can help me??