C# 打印機

   private void printDocument_PrintPage(object sender, PrintPageEventArgs ev)
        {

            Font titleFont = new Font("宋體", 9, FontStyle.Bold);//標題字體           

            Font fntTxt = new Font("宋體", 9, FontStyle.Regular);//正文文字           

            Brush brush = new SolidBrush(Color.Black);//畫刷           

            Pen pen = new Pen(Color.Black);           //線條顏色           

            Point po = new Point(10, 10);

            try
            {

                ev.Graphics.DrawString(GetPrintSW().ToString(), titleFont, brush, po);   //DrawString方式進行打印。        

            }

            catch (Exception ex)
            {

                MessageBox.Show(this, "打印出錯！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);

            }

        }

        ///GetPrintSw方法用來構造打印文本，內部StringBuilder.AppendLine在Drawstring時單獨佔有一行。

        public StringBuilder GetPrintSW()
        {

            StringBuilder sb = new StringBuilder();

            string tou = "測試管理公司名稱";

            string address = "河南洛陽";

            string saleID = "2010930233330";    //單號       

            string item = "項目";

            decimal price = 25.00M;

            int count = 5;

            decimal total = 0.00M;

            decimal fukuan = 500.00M;

            sb.AppendLine(" " + tou + " \n");

            sb.AppendLine("-----------------------------------------");

            sb.AppendLine("日期:" + DateTime.Now.ToShortDateString() + " " + "單號:" + saleID);

            sb.AppendLine("-----------------------------------------");

            sb.AppendLine("項目" + "      " + "數量" + "    " + "單價" + "    " + "小計");

            for (int i = 0; i < count; i++)
            {

                decimal xiaoji = (i + 1) * price;

                sb.AppendLine(item + (i + 1) + "      " + (i + 1) + "     " + price + "    " + xiaoji);

                total += xiaoji;

            }

            sb.AppendLine("-----------------------------------------");

            sb.AppendLine("數量:" + count + "  合計: " + total);

            sb.AppendLine("付款:" + fukuan);

            sb.AppendLine("現金找零:" + (fukuan - total));

            sb.AppendLine("-----------------------------------------");

            sb.AppendLine("地址:" + address + "");

            sb.AppendLine("電話:123456789 123456789");

            sb.AppendLine("謝謝惠顧歡迎下次光臨 ");

            sb.AppendLine("-----------------------------------------");

            return sb;

        }

觸發事件

    private void btnPrint_Click(object sender, EventArgs e)
        {
            pd.PrintPage += new PrintPageEventHandler(printDocument_PrintPage); //打印頁面需指定相應的PrintDocument_PrintPrintPage事件委託     

            pd.Print();

        }