How to render client report definition files (.rdlc) directly to the Response stream without preview

/// <summary>

/// References:

/// </summary>

private void RenderReport() {

    LocalReport localReport = new LocalReport();

    localReport.ReportPath = Server.MapPath("~/Report.rdlc");
  

    //A method that returns a collection for our report

    //Note: A report can have multiple data sources

    List<Employee> employeeCollection = GetData();

    //Give the collection a name (EmployeeCollection) so that we can reference it in our report designer

    ReportDataSource reportDataSource = new ReportDataSource("EmployeeCollection", employeeCollection);

    localReport.DataSources.Add(reportDataSource);

    string reportType = "PDF";

    string mimeType;

    string encoding;

    string fileNameExtension;

    //The DeviceInfo settings should be changed based on the reportType

    //http://msdn2.microsoft.com/en-us/library/ms155397.aspx

    string deviceInfo =

    "<DeviceInfo>" +

    "  <OutputFormat>PDF</OutputFormat>" +

    "  <PageWidth>8.5in</PageWidth>" +

    "  <PageHeight>11in</PageHeight>" +

    "  <MarginTop>0.5in</MarginTop>" +

    "  <MarginLeft>1in</MarginLeft>" +

    "  <MarginRight>1in</MarginRight>" +

    "  <MarginBottom>0.5in</MarginBottom>" +

    "</DeviceInfo>";

    Warning[] warnings;

    string[] streams;

    byte[] renderedBytes;

    //Render the report

    renderedBytes = localReport.Render(

        reportType,

        deviceInfo,

        out mimeType,

        out encoding,

        out fileNameExtension,

        out streams,

        out warnings);

    //Clear the response stream and write the bytes to the outputstream

    //Set content-disposition to "attachment" so that user is prompted to take an action

    //on the file (open or save)

    Response.Clear();

    Response.ContentType = mimeType;

    Response.AddHeader("content-disposition", "attachment; filename=foo." + fileNameExtension);

    Response.BinaryWrite(renderedBytes);

    Response.End();

}

reference url: http://weblogs.asp.net/rajbk/archive/2006/03/02/How-to-render-client-report-definition-files-_28002E00_rdlc_2900_-directly-to-the-Response-stream-without-preview.aspx