You have to use the Report Writer and PdfDocumentView to print the reports silently without viewing in Report Viewer. Find the following steps to print the report silently:
Initialize the Report Writer with reports and data sources, use Save API to get the printable PDF in stream.
string reportPath = @"../../ReportTemplate/Product Details.rdlc";
ReportWriter reportWriter = new ReportWriter(reportPath);
reportWriter.ReportProcessingMode = ProcessingMode.Local;
reportWriter.DataSources.Clear();
reportWriter.DataSources.Add(new ReportDataSource { Name = "DataSet1", Value = ProductCatalog.GetData() });
MemoryStream stream = new MemoryStream();
reportWriter.Save(stream, WriterFormat.PDF);Load the exported stream into the PdfDocumentView using the PdfDocumentView.Load API and add the available printers to a list for printing the report using the Windows PrintDialog as shown in the following code example.
PdfDocumentView pdfdoc = new PdfDocumentView();
pdfdoc.Load(stream);
var doc = pdfdoc.PrintDocument as IDocumentPaginatorSource;
PrintDialog printDialog = new PrintDialog();
List<string> printersList = new List<string>();
List<string> serversList = new List<string>();
var server = new PrintServer();
var queues = server.GetPrintQueues(new[] { EnumeratedPrintQueueTypes.Local });
foreach (var queue in queues)
{
if (!serversList.Contains(queue.HostingPrintServer.Name))
{
serversList.Add(queue.HostingPrintServer.Name);
}
printersList.Add(queue.FullName);
}
server = new PrintServer(serversList[0].ToString());
PrintQueue printer1 = server.GetPrintQueue(printersList[2].ToString());
printDialog.PrintQueue = printer1;
printDialog.PrintDocument(doc.DocumentPaginator, "PDF PRINTER");