How to use Crystal report viewer in a portlet based web application

Question

I am using JRC to view crystal reports in porlet based web application. Following is the code in JSP
<%@ page import="com.crystaldecisions.report.web.viewer.CrystalReportViewer,
com.crystaldecisions.sdk.occa.report.application.OpenReportOptions,
com.crystaldecisions.sdk.occa.report.application.ReportClientDocument,
com.crystaldecisions.sdk.occa.report.lib.ReportSDKExceptionBase" %>
<portlet:defineObjects />
<%
     // This sample code calls methods from the CRJavaHelper class, which
     // contains examples of how to use the BusinessObjects APIs. You are free to
     // modify and distribute the source code contained in the CRJavaHelper class.
     try {
          String reportName = "ProactiveEventsSummaryData.rpt";
          ReportClientDocument clientDoc = (ReportClientDocument) session.getAttribute(reportName);
          if (clientDoc == null) {
               // Report can be opened from the relative location specified in the CRConfig.xml, or the report location
               // tag can be removed to open the reports as Java resources or using an absolute path
               // (absolute path not recommended for Web applications).
               clientDoc = new ReportClientDocument();
               //clientDoc.setReportAppServer(ReportClientDocument.inprocConnectionString);
                              clientDoc.setReportAppServer("inproc:jrc");
               // Open report
               clientDoc.open(reportName, OpenReportOptions._openAsReadOnly);
               // Store the report document in session
               session.setAttribute(reportName, clientDoc);
          // ****** BEGIN CONNECT CRYSTALREPORTPAGEVIEWER SNIPPET **************** 
               // Create the CrystalReportViewer object
               CrystalReportViewer crystalReportPageViewer = new CrystalReportViewer();
               String reportSourceSessionKey = reportName+"ReportSource";
               Object reportSource = session.getAttribute(reportSourceSessionKey);
               if (reportSource == null)
                    reportSource = clientDoc.getReportSource();
                    session.setAttribute(reportSourceSessionKey, reportSource);
               //     set the reportsource property of the viewer
               crystalReportPageViewer.setReportSource(reportSource);
               // Apply the viewer preference attributes
               // Process the report
               crystalReportPageViewer.processHttpRequest(request, response, application, null);
          // ****** END CONNECT CRYSTALREPORTPAGEVIEWER SNIPPET ****************          
     } catch (ReportSDKExceptionBase e) {
         out.println(e);
%>
With this code , report gets displayed in the portlet but none of the actions on thre report like next page click , search button , opening subreport , clicking on drill-downs are working . The error in the explorer console is as shown below
Error: CrystalViewerCrystalEvent is not defined
javascript:CrystalViewerCrystalEvent('CrystalViewer',%20'tb=next')
PageSource of the web page shows the CrystalViewerCrystalEvent javascript function defined but for somereason its not recognized by the portlet. Has anyone worked on displaying crystalreports in a portlet ?

Answer 1

Code attached
<%@ page import="com.crystaldecisions.report.web.viewer.CrystalReportViewer,
com.crystaldecisions.sdk.occa.report.application.OpenReportOptions,
com.crystaldecisions.sdk.occa.report.application.ReportClientDocument,
com.crystaldecisions.sdk.occa.report.lib.ReportSDKExceptionBase" %>
<portlet:defineObjects />
<%
     // This sample code calls methods from the CRJavaHelper class, which
     // contains examples of how to use the BusinessObjects APIs. You are free to
     // modify and distribute the source code contained in the CRJavaHelper class.
     try {
          String reportName = "ProactiveEventsSummaryData.rpt";
          ReportClientDocument clientDoc = (ReportClientDocument) session.getAttribute(reportName);
          if (clientDoc == null) {
               // Report can be opened from the relative location specified in the CRConfig.xml, or the report location
               // tag can be removed to open the reports as Java resources or using an absolute path
               // (absolute path not recommended for Web applications).
               clientDoc = new ReportClientDocument();
               //clientDoc.setReportAppServer(ReportClientDocument.inprocConnectionString);
                              clientDoc.setReportAppServer("inproc:jrc");
               // Open report
               clientDoc.open(reportName, OpenReportOptions._openAsReadOnly);
               // Store the report document in session
               session.setAttribute(reportName, clientDoc);
          // ****** BEGIN CONNECT CRYSTALREPORTPAGEVIEWER SNIPPET **************** 
               // Create the CrystalReportViewer object
               CrystalReportViewer crystalReportPageViewer = new CrystalReportViewer();
               String reportSourceSessionKey = reportName+"ReportSource";
               Object reportSource = session.getAttribute(reportSourceSessionKey);
               if (reportSource == null)
                    reportSource = clientDoc.getReportSource();
                    session.setAttribute(reportSourceSessionKey, reportSource);
               //     set the reportsource property of the viewer
               crystalReportPageViewer.setReportSource(reportSource);
               // Apply the viewer preference attributes
               // Process the report
               crystalReportPageViewer.processHttpRequest(request, response, application, null);
          // ****** END CONNECT CRYSTALREPORTPAGEVIEWER SNIPPET ****************          
     } catch (ReportSDKExceptionBase e) {
         out.println(e);
%>
Edited by: teethoma on Nov 30, 2009 10:06 AM