diskOpt.DiskFileName = "C:\report.pdf";

expOpt = new ExportOptions();

expOpt.ExportDestinationType = ExportDestinationType.DiskFile;

expOpt.ExportFormatType = ExportFormatType.PortableDocFormat;

protected void btnViewReport(object sender, EventArgs e)

ParameterFields paramFields = new ParameterFields();

ParameterField paramField = new ParameterField();

ParameterDiscreteValue discreteValue = new ParameterDiscreteValue();

paramField.ParameterFieldName = "Name";

protected void btnExportPDF_Click(object sender, EventArgs e)

{

rptDoc = new ReportDocument();

rptDoc.Load(Server.MapPath("myReport.rpt"));

diskOpt = new DiskFileDestinationOptions();

diskOpt.DiskFileName = "C:\report.pdf";

expOpt = new ExportOptions();

expOpt.ExportDestinationType = ExportDestinationType.DiskFile;

expOpt.ExportFormatType = ExportFormatType.PortableDocFormat;

expOpt.ExportDestinationOptions = diskOpt;

expOpt.ExportFormatOptions = pdfOpt;where pdfOpt declare

rptDoc.Export();

}