C# 利用PrintDocument定制打印单据

本文是利用PrintDocument定制打印单据的小例子，仅供学习分享使用，如果不足之处，还请指正。

涉及知识点：

• PrintDocument :从 Windows 窗体应用程序打印时，定义一种可重用的可发送到打印机上的对象。
• PrintPreviewControl :表示 Windows 窗体应用程序打印预览的原始预览部分，没有任何对话框或按钮。
• Graphics ：GDI+绘图对象
• PrinterSettings：设置打印机属性，如：设置属性Copies，可以设置打印份数，默认为1，
• PageSettings：指定应用于单页打印的设置
• DefaultPageSettings：PrintDocument的属性
• PrintPage事件：PrintDocument的事件，通过此事件来绘制需要打印的内容
• PaperSize：指定纸张大小
• 毫米和英寸的换算：打印机是以英寸为单位的，单据设置是以毫米为单位的，所以需要转换

 效果图如下：

核心代码

关键代码如下：

 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Data;
 using System.Drawing;
 using System.Drawing.Printing;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Forms;

 namespace DemoPrint
 {
     public partial class MainForm : Form
     {
         private int width_p = ;//单位是mm

         private int height_p = ;//单位是mm

         private int margin_lr = ;//左右边距

         private int margin_tb = ;//上下边距

         /// <summary>
         /// 需要打印的内容
         /// </summary>
         public List<PrintInfo> PrintInfos { get; set; }

         private PrintHelper printHelper = new PrintHelper();

         public MainForm()
         {
             InitializeComponent();
         }

         private void MainForm_Load(object sender, EventArgs e)
         {
             InitInfo();
             InitDocument();
         }

         private void InitInfo() {
             PrinterSettings printSetting = new PrinterSettings();
             printSetting.PrintRange = PrintRange.AllPages;

             int width_in = MM2Inch(width_p);
             int height_in = MM2Inch(height_p);
             PageSettings pageSetting = new PageSettings(printSetting);
             pageSetting.PaperSize = new PaperSize("customer",width_in, height_in);

             int margin_lr_in = MM2Inch(margin_lr);
             int margin_tb_in = MM2Inch(margin_tb);
             pageSetting.Margins = new Margins(margin_lr_in, margin_lr_in, margin_tb_in, margin_tb_in);
             this.pdControl.DefaultPageSettings = pageSetting;
         }

         private void InitDocument() {
             List<PrintInfo> lstPrintInfos = new List<PrintInfo>();
             PrintInfo p0 = new PrintInfo()
             {
                 PrtType = PrintType.Table,
                 PrtColor = Color.Brown,
                 Row = int.Parse(this.txtRow.Text.Trim()),
                 Column = int.Parse(this.txtColumn.Text.Trim()),
                 Start = new Point(int.Parse(this.txtStart.Text.Trim(new char[] { '(', ')' }).Split(',')[]), int.Parse(this.txtStart.Text.Trim(new char[] { '(', ')' }).Split(',')[])),
                 End = new Point(int.Parse(this.txtEnd.Text.Trim(new char[] { '(', ')' }).Split(',')[]), int.Parse(this.txtEnd.Text.Trim(new char[] { '(', ')' }).Split(',')[]))

             };
             lstPrintInfos.Add(p0);
             printHelper.PrintInfos = lstPrintInfos;
         }

         /// <summary>
         /// 转换毫米到百分之一英寸
         /// </summary>
         /// <param name="mm"></param>
         /// <returns></returns>
         private int MM2Inch(int mm) {
            return (int)(mm * 100.0f / 25.4f);
         }

         /// <summary>
         /// 打印开始事件
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void pdControl_BeginPrint(object sender, PrintEventArgs e)
         {

         }

         /// <summary>
         /// 打印事件
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void pdControl_PrintPage(object sender, PrintPageEventArgs e)
         {
             Font font = new Font("Arial", 14f, FontStyle.Regular);
             Graphics g = e.Graphics;
             g.PageScale = ;
             g.PageUnit = GraphicsUnit.Millimeter;
             //先画一个矩形
             Pen lineColor = new Pen(Color.Black, 0.2f);
             g.FillRectangle(Brushes.Linen,,,width_p,height_p);
             printHelper.Print(g);
         }

         /// <summary>
         /// 打印结束事件
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void pdControl_EndPrint(object sender, PrintEventArgs e)
         {

         }

         /// <summary>
         /// 打印
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void btnPrint_Click(object sender, EventArgs e)
         {
             //打印对话框
             if (this.ptDControl.ShowDialog() == DialogResult.OK)
             {
                 this.pdControl.Print();
             }

         }

         private void lblColor_Click(object sender, EventArgs e)
         {
             ColorDialog f = new ColorDialog();
             if (f.ShowDialog() == DialogResult.OK)
             {

                 this.lblColor.BackColor = f.Color;
             }
         }

         /// <summary>
         /// 刷新
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void btnRefresh_Click(object sender, EventArgs e)
         {
             List<PrintInfo> lstPrintInfos = new List<PrintInfo>();
             //表格配置
             PrintInfo p0 = new PrintInfo()
             {
                 PrtType = PrintType.Table,
                 PrtColor = Color.Brown,
                 Row = int.Parse(this.txtRow.Text.Trim()),
                 Column = int.Parse(this.txtColumn.Text.Trim()),
                 Start = new Point(int.Parse(this.txtStart.Text.Trim(new char[] { '(', ')' }).Split(',')[]), int.Parse(this.txtStart.Text.Trim(new char[] { '(', ')' }).Split(',')[])),
                 End = new Point(int.Parse(this.txtEnd.Text.Trim(new char[] { '(', ')' }).Split(',')[]), int.Parse(this.txtEnd.Text.Trim(new char[] { '(', ')' }).Split(',')[]))

             };
             lstPrintInfos.Add(p0);
             //标题配置
             PrintInfo p1 = new PrintInfo()
             {
                 PrtType = PrintType.Text,
                 PrtColor = this.lblColor.BackColor,
                 Content = this.txtTitle.Text.Trim(),
                 Size = int.Parse(this.txtSize.Text.Trim()),
                 FontStyle = chkBold.Checked ? FontStyle.Bold : FontStyle.Regular,
                 Start = new Point(int.Parse(this.txtLocation.Text.Trim(new char[] { '(', ')' }).Split(',')[]), int.Parse(this.txtLocation.Text.Trim(new char[] { '(', ')' }).Split(',')[]))
             };
             lstPrintInfos.Add(p1);
             //内容
             TextBox[] T = new TextBox[] { T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12 };
             TextBox[] L = new TextBox[] { L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12 };
             for (int i = ; i < ; i++)
             {
                 PrintInfo p = new PrintInfo()
                 {
                     PrtType = PrintType.Text,
                     PrtColor = Color.Black,
                     Content = T[i].Text.Trim(),
                     Size = ,
                     FontStyle = FontStyle.Regular,
                     Start = new Point(int.Parse(L[i].Text.Trim(new char[] { '(', ')' }).Split(',')[]), int.Parse(L[i].Text.Trim(new char[] { '(', ')' }).Split(',')[]))
                 };
                 lstPrintInfos.Add(p);
             }
             //打印时间
             PrintInfo p2 = new PrintInfo()
             {
                 PrtType = PrintType.Text,
                 PrtColor = this.lblColor.BackColor,
                 Content = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"),
                 Size =,
                 FontStyle =FontStyle.Regular,
                 Start = new Point(,)
             };
             lstPrintInfos.Add(p2);

             printHelper.PrintInfos = lstPrintInfos;
             this.ppVControl.InvalidatePreview();//刷新文档的预览，重新调用PrintDocument的Print方法
         }
     }
 }

源码链接