Dynamic crystal report generation - issues with column headings

Question

Hi All,<br>
I'm trying to generate a crystal report dynamically based on a "result set" data(Query: select REPORT_ID, REPORT_NAME, REPORT_DESC, RPT_FILE_NAME, LOCATION from IRS_REPORT_DETAILS). I'm able to generate the report run time, But the report is without columns heads. I would like to include the column headings as well. <br><br>
I searched the API(RAS) and found that there is a 'add(java.lang.String fieldName, java.lang.String headingText) " method present in "ReportObjectController" using which we can add the headings.<br><br>
ReportDefController reportDefController = clientDoc.getReportDefController();
ReportObjectController reportObjectController = reportDefController.getReportObjectController();
reportObjectController.add( "{Table.Field}", "FieldName" );
<br><br>
I'm facing problems in using this code. When trying to use this function for my fields(Ex: reportObjectController.add( "{ IRS_REPORT_DETAILS.REPORT_ID}", "Report ID" );) it is giving me the following error:<br><br>"com.crystaldecisions.sdk.occa.report.lib.ReportSDKGroupException: The field was not found.---- Error code:-2147213310 Error code name:fieldNotFound"<br><br>
<b>The following is my dynamic crystal report generation code:</b><br><br>
public ReportClientDocument execute(String repName, String query) {
          ReportClientDocument boReportClientDocument = null;
          try {
               boReportClientDocument = new ReportClientDocument();
               boReportClientDocument.newDocument();
                  // Add a table based on the given Resultset to the report.
               dbConnResultSet mySampleResultSet = new dbConnResultSet();
               //mySampleResultSet.execute(query);
               boReportClientDocument.getDatabaseController().addDataSource(
                         mySampleResultSet.execute(query));
               IReportSource test = boReportClientDocument.getReportSource();
               // Access all the database fields
               DatabaseController databaseController = boReportClientDocument
                         .getDatabaseController();
               IDatabase database = databaseController.getDatabase();
               Tables tables = database.getTables();
               ITable table = (Table) tables.getTable(0);
               int NO_OF_FIELDS = table.getDataFields().size();
               int LEFT_POSITION = 200;
               // Add all the database fields to the report document
               for (int i = 0; i < NO_OF_FIELDS; i++) {
                    IField field = table.getDataFields().getField(i);
                    FieldObject fieldObject = new FieldObject();
                    fieldObject.setFieldValueType(field.getType());
                    fieldObject.setDataSource(field.getFormulaForm());
                    IReportObject rep = (IReportObject) fieldObject;
                    IObjectFormat objformat = rep.getFormat();
                    objformat.setEnableCanGrow(true);
                    objformat.setHorizontalAlignment(Alignment.from_int(1));
                    rep.setFormat(objformat);
                    rep.setLeft(LEFT_POSITION);
                    rep.setWidth(1000);
                    LEFT_POSITION = LEFT_POSITION + 1000 + 50;
                    ISection section = boReportClientDocument
                              .getReportDefController().getReportDefinition()
                              .getDetailArea().getSections().getSection(0);
                               //***************** Data being added to the report here, But headings are not added*****************
                    boReportClientDocument.getReportDefController()
                              .getReportObjectController().add(rep, section, i);
               boReportClientDocument.createReport();
               /*Some report saving code is present down*/
          } catch (ReportSDKException ex) {
               ex.printStackTrace();
          } catch (Exception ex) {
               ex.printStackTrace();
          return boReportClientDocument;
<br><br>
appreciate your help.

Answer 1

IField field = table.getDataFields().getField(i);
Here you are getting the first field in the array.  This may not be the field you want to add since we aren't sure how the arrays are ordered when retrieving fields from the report.  It is better to retrieve the fields with the findObjectByName method, thus ensuring you are retrieving the field you want to add to your heading.