generate PDF report automatically

Hi all.

I want to know how to auto create report in PDF format.
For instance, at the end of each month, I want the report to be automatically generated. I hope someone who knows or have experience in solving this problem, could guide me or give me some references or give me code examples related to this problem.

FYI, I use ASP for coding and Access as a database.

Thanks in advance.

HTML Code:

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if you are using C#

Report3bueno Rep = new Report3bueno();                       
                       
CrystalDecisions.Shared.TableLogOnInfo tliCurrent;
foreach(CrystalDecisions.CrystalReports.Engine.Table tbCurrent in Rep.Database.Tables)
  {
        tliCurrent = tbCurrent.LogOnInfo;                               
        tliCurrent.ConnectionInfo.ServerName = your servername
        tliCurrent.ConnectionInfo.UserID = userid";
        tliCurrent.ConnectionInfo.Password = pwd;
        tliCurrent.ConnectionInfo.DatabaseName = "reportes";
        tbCurrent.ApplyLogOnInfo(tliCurrent);
  }
        CrystalReportViewer1.ReportSource = Rep;                       
        MemoryStream oStream;
        oStream = (MemoryStream)Rep.ExportToStream(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat);
        Response.Clear();
        Response.Buffer= true;
        Response.ContentType = "application/pdf";
        Response.BinaryWrite(oStream.ToArray());
        Response.End();


if you are using vb
  Me.CrystalReportViewer1.ReportSource = crReporte
  Me.CrystalReportViewer1.Visible = True
  '-----------------------------------------------------
  'Report Export
  '-----------------------------------------------------
  Dim DiskOpts As CrystalDecisions.Shared.DiskFileDestinationOptions = New CrystalDecisions.Shared.DiskFileDestinationOptions
  crReporte.ExportOptions.ExportDestinationType = CrystalDecisions.[Shared].ExportDestinationType.DiskFile
  crReporte.ExportOptions.ExportFormatType = CrystalDecisions.[Shared].ExportFormatType.PortableDocFormat

  Dim req As New ExportRequestContext
  Dim s As System.IO.Stream

  req.ExportInfo = crReporte.ExportOptions
  s = crReporte.FormatEngine.ExportToStream(req)

  Response.ClearHeaders()
  Response.ClearContent()
  Response.ContentType = "application/pdf"

  Dim buffer(s.Length) As Byte
  s.Read(buffer, 0, Int(s.Length))
  Response.BinaryWrite(buffer)
  Response.End()

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