• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
  • Campbell Ritchie
  • Devaka Cooray
  • Liutauras Vilda
  • Jeanne Boyarsky
  • Bear Bibeault
  • Paul Clapham
  • Knute Snortum
  • Rob Spoor
Saloon Keepers:
  • Tim Moores
  • Ron McLeod
  • Piet Souris
  • Stephan van Hulst
  • Carey Brown
  • Tim Holloway
  • Frits Walraven
  • Ganesh Patekar

Access elements of list for chart using java,ireport

Posts: 22
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I need to create a chart. I am getting parameter from java .

My java code

public static List<CostSales> randomData() {
List<CostSales> listOfCostSales = new ArrayList<CostSales>();
listOfCostSales.add(new CostSales(10.2,1));
listOfCostSales.add(new CostSales(20.2,2));
listOfCostSales.add(new CostSales(30.2,3));
listOfCostSales.add(new CostSales(40.2,4));
return listOfCostSales;

parameters.put("listOfCostSales", randomData());

jasperPrint = JasperFillManager.fillReport(jasperReport,parameters,dataSource);

Then In Ireport I created a chart . In main dataset I created a parameter listOfCostSales as list and cost and month. And created a subdataset Chartdata with listOfCostSales, sale, month.

In chart data
Connection/DataSource Expression, I used Use connection expression from the drop down and set value

I don't know what is wrong with my code. I can't access elements of list. I am getting null key ..

For testing Printed month and cost by drag droping. I am getting null

Please help me .I am struggling with this for last two week. Almost googled most of the sites and failed to find out the answer.
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!