asp.net中C# 自定义打印类程序

public class PrintInfo
    {
        public string PortName { get; set; }
        public string DepartureTime { get; set; }
        public string AMPM { get; set; }

        PrintDocument document = new PrintDocument();
        private int pageWidth = 302;
        private int pageHeight = 530;

        public PrintInfo()
        {       
　　　　　　  PortName=“Test Port”;
　　　　　　　DepartureTime="11:30";
　　　　　　  AMPM="上午";　　　　　　
            document.BeginPrint += new PrintEventHandler(document_BeginPrint);
            document.PrintPage += new PrintPageEventHandler(document_PrintPage);
            document.EndPrint += new PrintEventHandler(document_EndPrint);
        }

        private void document_EndPrint(object sender, PrintEventArgs e)
        {
           
        }

        private void document_BeginPrint(object sender, PrintEventArgs e)
        {

        }

        private void document_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
        {
            if (DepartureTime != null)
            {
                //Logo
                Bitmap imageLogo = new Bitmap(System.AppDomain.CurrentDomain.BaseDirectory + @"Resourcelogo.bmp");
                e.Graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
                e.Graphics.SmoothingMode = SmoothingMode.HighQuality;
                e.Graphics.CompositingQuality = CompositingQuality.HighQuality;
                e.Graphics.DrawImage(imageLogo, 5, 10, 292, 131);

                //Line
                e.Graphics.DrawLine(new Pen(Brushes.Black, 3), 12, 166, 291, 166);

                //Port Name
                Font strFont = new Font("宋体", 18);
                e.Graphics.DrawString(PortName, strFont, Brushes.Black,
                (float)pageWidth / 2 - e.Graphics.MeasureString(PortName, strFont).Width / 2 + 1, 198);

                //Departure Time
                strFont = new Font("宋体", 50, FontStyle.Bold);
                e.Graphics.DrawString(DepartureTime, strFont, Brushes.Black,
               (float)pageWidth / 2 - e.Graphics.MeasureString(DepartureTime, strFont).Width / 2, 248);

                //AMPM
                e.Graphics.DrawString(AMPM, strFont, Brushes.Black,
               (float)pageWidth / 2 - e.Graphics.MeasureString(AMPM, strFont).Width / 2, 320);

                //Line
                e.Graphics.DrawLine(new Pen(Brushes.Black, 3), 12, 419, 291, 419);
               //Thankyou and print time
                strFont = new Font("宋体", 13, FontStyle.Bold);
                printTxt = "Thank You";
                e.Graphics.DrawString(printTxt, strFont, Brushes.Black, 12, 481);
                strFont = new Font("宋体", 8);
                printTxt = DateTime.Now.ToString("MM/dd/yyyy hh:mmtM");
                e.Graphics.DrawString(printTxt, strFont, Brushes.Black, 184, 487);

            }
        }

        public void PrintDocument()
        {
            document.DefaultPageSettings.PaperSize = new PaperSize("Custum", pageWidth, pageHeight);
            PrintController printController = new StandardPrintController();
            document.PrintController = printController;
            //System.Windows.Forms.PrintPreviewDialog printPreview = new System.Windows.Forms.PrintPreviewDialog();
            //printPreview.Document = document;
            //printPreview.ShowDialog();

            document.Print();
        }