Code to export crystal report to pdf directly

Code to export crystal report to pdf directly

 //Declare Reportdocument Object  
 ReportDocument rpt=new ReportDocument();  
 //set a ReportPath and assign the dataset to reportdocument object  
 rpt.Load(Server.MapPath("Report1.rpt"));  
 rpt.SetDataSource(ds);  
 //assign the values to crystal report viewer  
 CrystalReportViewer1.ReportSource = rpt;  
 CrystalReportViewer1.DataBind();  
 //Exporting PDF  
 MemoryStream oStream; // using System.IO  
 oStream = (MemoryStream)  
 rpt.ExportToStream(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat);  
 Response.Clear();  
 Response.Buffer = true;  
 Response.ContentType = "application/pdf";  
 Response.BinaryWrite(oStream.ToArray());  
  Response.End();