How to Open multiple instances of Report at the same time using X++ code in AX 2012

    Many times it is needed to display multiple reports on screen. In standard Dynamics AX 2012, if you try to call multiple times, a report; it will open 2nd report, after 1st instance of report viewer is closed. A user may be looking for, display of multiple instances at same time, without closing other.

Using controller class dialogShow method,

class VendInvoiceAttachmentController extends SrsReportRunController
{
    #define.ReportName('VendInvoiceAttachment.Report')

} 

public static void main(Args _args)
{
    VendInvoiceAttachmentController controller = new VendInvoiceAttachmentController();
 
    controller.parmReportName(#ReportName);
    controller.parmArgs(_args);
    controller.parmLoadFromSysLastValue(false);
    //controller.startOperation();
 
    if (controller.prompt())
    {
        controller.preRunModifyContract();
    }
}
 
protected void preRunModifyContract()
{
    SRSPrintDestinationSettings     settings;
    Query                           query;
    QueryRun                        queryRun;
    VendInvoiceJour                 vendInvoiceJour;
    SRSReportExecutionInfo          executionInfo;
 
    settings = this.parmReportContract().parmPrintSettings();
 
    if (settings.printMediumType() != SRSPrintMediumType::Printer &&
        settings.printMediumType() != SRSPrintMediumType::Screen)
    {
        throw error(strFmt("@$AB59", settings.printMediumType()));
    }
 
    query       = this.getFirstQuery();
    queryRun    = new QueryRun(query);
 
    while (queryRun.next())
    {
        vendInvoiceJour  = queryRun.get(tableNum(VendInvoiceJour));
 
        this.printAttachements(vendInvoiceJour.RecId);
 
        // create a instance of ReportExecutionInfo & set it on contract. This will get used while running report.
        executionInfo = new SRSReportExecutionInfo();
        executionInfo.parmReportRunId(reportRunId);
        reportContract.parmReportExecutionInfo(executionInfo);
 
        //Range
        SrsReportHelper::addParameterValueRangeToQuery(this.getFirstQuery(),tableNum(VendInvoiceJour),fieldNum(VendInvoiceJour, RecId),SysQuery::value(vendInvoiceJour.RecId));
 
        if (settings.printMediumType() == SRSPrintMediumType::Screen)
        {
            // pre report run
            this.parmReportRun().preRunReport();
            this.runToScreen();
        }
 
        if (settings.printMediumType() == SRSPrintMediumType::Printer)
        {
            // pre report run
            this.parmReportRun().preRunReport();
            this.parmReportRun().runReport();
        }
    }
}
 
Run multiple reports to screen
When printing multiple reports to screen in code, the previous printed report will block the next one, untill user closes the previous one, the next one starts rendering. This is anoying if user needs to print multiple reports to screen as a batch. The solution to this is simple, we just need to create a class to extend SrsReportRunController and overwrite the methods dialogShow and dialogClose. See sample below
 
protected void dialogShow()
{
    SysOperationDialog  sysOperationDialog;
    FormRun             formRun;
 
    if (useReportViewerForm)
    {
        dialog.run();
        this.dialogPostRun();
 
        sysOperationDialog  = dialog as SysOperationDialog;
        formRun             = sysOperationDialog.formRun();
        formRun.detach();
    }
    else
    {
        super();
    }

}

protected void dialogClose()
{
    if(!useReportViewerForm)
    {
        super();
    }

}

References:

https://community.dynamics.com/365/financeandoperations/b/microsoftdynamicsaxextensions/posts/open-multiple-instances-of-report-at-same-time

http://xhellot.blogspot.com/2016/08/how-to-run-ssrs-report-from-x-code-in_8.html