using System;
using System.Windows.Forms;
using CrystalDecisions.CrystalReports.Engine;
using CrystalDecisions.Shared;
using System.Web.Mail;

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        ReportDocument cryRpt;
        string pdfFile = "c:\\csharp.net-informations.pdf";

        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            cryRpt = new ReportDocument();
            cryRpt.Load(PUT CRYSTAL REPORT PATH HERE\\CrystalReport1.rpt");
            crystalReportViewer1.ReportSource = cryRpt;
            crystalReportViewer1.Refresh(); 
        }

        private void button2_Click(object sender, EventArgs e)
        {
            try
            {
                ExportOptions CrExportOptions ;
                DiskFileDestinationOptions CrDiskFileDestinationOptions = new DiskFileDestinationOptions();
                PdfRtfWordFormatOptions CrFormatTypeOptions = new PdfRtfWordFormatOptions();
                CrDiskFileDestinationOptions.DiskFileName = pdfFile;
                CrExportOptions = cryRpt.ExportOptions;
                CrExportOptions.ExportDestinationType = ExportDestinationType.DiskFile;
                CrExportOptions.ExportFormatType = ExportFormatType.PortableDocFormat;
                CrExportOptions.DestinationOptions = CrDiskFileDestinationOptions;
                CrExportOptions.FormatOptions = CrFormatTypeOptions;
                cryRpt.Export();

                sendmail();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }
        }

        private void sendmail()
        {
            try {
                SmtpMail.SmtpServer.Insert(0, "your hostname");
                MailMessage Msg = new MailMessage();
                Msg.To = "to address here";
                Msg.From = "from address here";
                Msg.Subject = "Crystal Report Attachment ";
                Msg.Body = "Crystal Report Attachment ";
                Msg.Attachments.Add(new MailAttachment(pdfFile));
                System.Web.Mail.SmtpMail.Send(Msg);
            } 
            catch (Exception ex) { 
                MessageBox.Show (ex.ToString()); 
            }         
        }
    }
}