Programmatically adding chart to a report throws exception

Question

programmatically adding chart to a report throws exception "chart condition fields are not valid".
Configuration:
I am using CR4E to create web application, I've added RAS jars (rasapp.jar, rascore.jar, reporttemplate.jar, serialization.jar) to this web application. For designing reports i am using Crystal Reports 2008.
Code:
<%
// Get the previously opened report from the session.
ReportClientDocument reportClientDocument =
     (ReportClientDocument)session.getAttribute("ReportClientDocument");
System.out.println(reportClientDocument.getReportDocument().getName());
// Try to get the report's DataDefinition object.
IDataDefinition dataDefinition;
try
     dataDefinition = reportClientDocument.getDataDefController().getDataDefinition();
// If the DataDefinition object can not be retrieved, redirect the user to an error page.
catch (Exception e)
     System.out.println("With error1");
    return;
// Create a new ChartDefinition object and set its type to ChartType.group.
ChartDefinition chartDefinition = new ChartDefinition();
chartDefinition.setChartType(ChartType.group);
Get the conditional field of the report's first group. Set this conditional
field for the ChartDefinition object using the setConditonalFields method. Notice
that the conditional field is first placed in a Fields collection because the
setConditionalFields method takes a Fields object as an argument.
Fields conditionFields = new Fields();
if (!dataDefinition.getGroups().isEmpty())
     IField field = dataDefinition.getGroups().getGroup(0).getConditionField();
     System.out.println("Condition field name ->" + field.getLongName(Locale.ENGLISH));
     conditionFields.addElement(field);
chartDefinition.setConditionFields(conditionFields);
//Get the summary field name from the form on the previous page.
String summaryFieldName = URLDecoder.decode(request.getParameter("summaryField"));
System.out.println("Summary field name ->" + summaryFieldName);
Loop through all of the report's summary fields until the one matching the name
above is found. Set this summary field for the ChartDefinition object using the
setDataFields method. Notice that the summary field is first placed in a Fields
collection because the setDataFields method takes a Fields object as an argument.
Fields dataFields = new Fields();
for (int i = 0; i < dataDefinition.getSummaryFields().size(); i++)
    IField summaryField = dataDefinition.getSummaryFields().getField(i);
     if (summaryField.getLongName(Locale.ENGLISH).equals(summaryFieldName))
          System.out.println("Adding data field ->" + summaryFieldName);
          dataFields.addElement(summaryField);
chartDefinition.setDataFields(dataFields);
Create a new ChartObject to represent the chart that will be added.  Set the
ChartDefinition property of the ChartObject using the ChartDefinition object created
above.
ChartObject chartObject = new ChartObject();
chartObject.setChartDefinition(chartDefinition);
Get the chart type, chart placement, and chart title strings from the form on the
previous page. If no chart title was chosen, create a generic title.
String chartTypeString = request.getParameter("type");
String chartPlacementString = request.getParameter("placement");
String chartTitle = request.getParameter("title");
System.out.println("chartTypeString ->"+ chartTypeString + "<-chartPlacementString->" + chartPlacementString + "<-chartTitle->"+chartTitle);
if (chartTitle.equals(""))
     chartTitle = "untitled";
Create a ChartStyleType object and a AreaSectionKind object based on the
the chartTypeString and chartPlacementString retrieved above. In this example
possible chart types are bar chart and pie chart. Possible chart placements
are header and footer.
ChartStyleType chartStyleType = ChartStyleType.from_string(chartTypeString);
AreaSectionKind chartPlacement = AreaSectionKind.from_string(chartPlacementString);
// Set the chart type, chart placement, and chart title for the chart.
chartObject.getChartStyle().setType(chartStyleType);
chartObject.setChartReportArea(chartPlacement);
chartObject.getChartStyle().getTextOptions().setTitle(chartTitle);
// Set the width, height, and top for the chart.
chartObject.setHeight(5000);
chartObject.setWidth(5000);
chartObject.setTop(1000);
Get a ReportDefController object that can be used to modify the report's definition.
ReportDefController reportDefController;
try
     reportDefController = reportClientDocument.getReportDefController();
catch (Exception e)
     System.out.println("With Error2");
     return;
*Create a Section object that represents the section that will hold the chart.
If the chart placement was set header, get the header section, otherwise, if the
chart placement was set to footer, get the footer section.
Section chartSection = null;
if (chartPlacement.equals(AreaSectionKind.reportHeader))
     IArea reportHeaderArea =
          reportDefController.getReportDefinition().getReportHeaderArea();
     chartSection = (Section)reportHeaderArea.getSections().getSection(0);
else if (chartPlacement.equals(AreaSectionKind.reportFooter))
     IArea reportFooterArea =
          reportDefController.getReportDefinition().getReportFooterArea();
     chartSection = (Section)reportFooterArea.getSections().getSection(0);
Add the chart to the section using the ReportDefController object.
reportDefController.getReportObjectController().add(chartObject, chartSection, 1);
// Save the changes and close the report.
reportClientDocument.save();
reportClientDocument.close();
session.removeAttribute("ReportClientDocument");
%>     
Trace:
com.crystaldecisions.sdk.occa.report.lib.ReportDefControllerException: The chart condition fields are not valid.---- Error code:-2147213287 Error code name:invalidChartObject
     at com.crystaldecisions.sdk.occa.report.lib.ReportDefControllerException.throwReportDefControllerException(Unknown Source)
     at com.crystaldecisions.sdk.occa.report.application.ReportObjectController.a(Unknown Source)
     at com.crystaldecisions.sdk.occa.report.application.ReportObjectController.a(Unknown Source)
     at com.crystaldecisions.sdk.occa.report.application.ReportObjectController.a(Unknown Source)
     at com.crystaldecisions.sdk.occa.report.application.ReportObjectController.a(Unknown Source)
     at com.crystaldecisions.sdk.occa.report.application.ReportObjectController.a(Unknown Source)
     at com.crystaldecisions.sdk.occa.report.application.ReportObjectController.add(Unknown Source)
     at org.apache.jsp.AddChart_jsp._jspService(AddChart_jsp.java:230)
     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:387)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:585)
     at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:244)
     at java.security.AccessController.doPrivileged(Native Method)
     at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
     at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:276)
     at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:162)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:283)
     at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:56)
     at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:189)
     at java.security.AccessController.doPrivileged(Native Method)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185)
     at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:585)
     at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:244)
     at java.security.AccessController.doPrivileged(Native Method)
     at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
     at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:276)
     at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:218)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
     at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:56)
     at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:189)
     at java.security.AccessController.doPrivileged(Native Method)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
     at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
     at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
     at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
     at org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:393)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
     at java.lang.Thread.run(Thread.java:595)

Answer 1

Please try this code snippet
var cs:ColumnSeries = new ColumnSeries();
cs.dataProvider = dp;
cs.displayName = "Series 2";
cs.yField = "values";
chart.series.push(cs);
OR
var temp:Array = [];
var cs:ColumnSeries = new ColumnSeries();
cs.dataProvider = dp;
cs.displayName = "Series 2";
cs.yField = "values";
temp = chart.series;
temp.add(cs);
chart.series = temp;