Creating reports and dashboards | Stimulsoft community forum

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    //....another codes
    /*
     *add back page if necessary
     */
     if (json.has(this.IDENTIFICADOR_ADICIONAR_VERSO)) {
	    try {
		    String relatorioVersoString = json.getString(this.IDENTIFICADOR_ADICIONAR_VERSO);
		    if (!relatorioVersoString.isEmpty()) {
			    report = this.getMontarVersoRelatorio(report, relatorioVersoString);
		    }
	    } catch (JSONException e) {
		    //TODO 
	    } finally {
		    json.remove(this.IDENTIFICADOR_ADICIONAR_VERSO);
	    }
    }
}
report.render();

/*
* function to add back page
* *** (relatorioOriginal = original report)
* *** (nomeRelatorioPersonalizado = name of custom report (back page));
*/
private StiReport getMontarVersoRelatorio(StiReport relatorioOriginal, String nomeRelatorioPersonalizado) {
        StiReport outReport = StiReport.newInstance();
		try {
		        //more code...
                        //Code hidden to preserve the company, but his only get the custom xml report (backpage).
                        //more code...


			//get back page report
			InputStream stream = new ByteArrayInputStream(relatorioXmlString.getBytes(StandardCharsets.UTF_8));
			StiReport relatorioVerso = StiSerializeManager.deserializeReport(stream);

			relatorioOriginal.render(); // render main report
			relatorioVerso.render(); // render back page
			
			
	            outReport.setBookmark(relatorioOriginal.getBookmark());
	            outReport.getRenderedPages().clear();
	            for (StiPage page : relatorioOriginal.getRenderedPages()) {
	                outReport.getRenderedPages().add(page);
	                outReport.getRenderedPages().add((StiPage) relatorioVerso.getRenderedPages().get(0).clone());
	            }

                    //PDF WORKS FINE, that show main page + back page correctly, this code is test
	            StiExportManager.exportPdf(outReport, new FileOutputStream("C:\\temp\\out.pdf"));
                    //PDF WORKS FINE, that show main page + back page correctly, this code is test

		} catch (BancoDadosException | IOException | SAXException | StiDeserializationException | NullPointerException | StiException e) {
			e.printStackTrace();
			return relatorioOriginal; // if  catch error, return original report
		}
		return outReport; //otherwise, return edited report
	}

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outReport.setIsRendered(true);

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report2.isRendered = true;