1.使用PrintDocument進行打印
using System;using System.Drawing;using System.Drawing.Printing;using System.Windows.Forms; namespace PrintTest{ public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { //實例化打印對象 PrintDocument printDocument1 = new PrintDocument(); //設置打印用的紙張,當設置為Custom的時候，可以自定義紙張的大小 printDocument1.DefaultPageSettings.PaperSize = new PaperSize("Custum", 500, 500); //注冊PrintPage事件，打印每一頁時會觸發該事件 printDocument1.PrintPage += new PrintPageEventHandler(this.PrintDocument_PrintPage); //開始打印 printDocument1.Print(); } private void PrintDocument_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e) { //設置打印內容及其字體，顏色和位置 e.Graphics.DrawString("Hello World！", new Font(new FontFamily("黑體"), 24), System.Drawing.Brushes.Red, 50, 50); } }}2.使用PrintDialog增加打印對話框
using System;using System.Drawing;using System.Drawing.Printing;using System.Windows.Forms; namespace PrintTest{ public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { //實例化打印對象 PrintDocument printDocument1 = new PrintDocument(); //設置打印用的紙張,當設置為Custom的時候，可以自定義紙張的大小 printDocument1.DefaultPageSettings.PaperSize = new PaperSize("Custum", 500, 500); //注冊PrintPage事件，打印每一頁時會觸發該事件 printDocument1.PrintPage += new PrintPageEventHandler(this.PrintDocument_PrintPage); //初始化打印對話框對象 PrintDialog printDialog1 = new PrintDialog(); //將PrintDialog.UseEXDialog屬性設置為True，才可顯示出打印對話框 printDialog1.UseEXDialog = true; //將printDocument1對象賦值給打印對話框的Document屬性 printDialog1.Document = printDocument1; //打開打印對話框 DialogResult result = printDialog1.ShowDialog(); if (result == DialogResult.OK) printDocument1.Print();//開始打印 } private void PrintDocument_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e) { //設置打印內容及其字體，顏色和位置 e.Graphics.DrawString("Hello World！", new Font(new FontFamily("黑體"), 24), System.Drawing.Brushes.Red, 50, 50); } }}打印對話框如下圖所示。
3.使用PrintPreviewDialog增加打印預覽對話框
using System;using System.Drawing;using System.Drawing.Printing;using System.Windows.Forms; namespace PrintTest{ public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { //實例化打印對象 PrintDocument printDocument1 = new PrintDocument(); //設置打印用的紙張,當設置為Custom的時候，可以自定義紙張的大小 printDocument1.DefaultPageSettings.PaperSize = new PaperSize("Custum", 500, 500); //注冊PrintPage事件，打印每一頁時會觸發該事件 printDocument1.PrintPage += new PrintPageEventHandler(this.PrintDocument_PrintPage); //初始化打印預覽對話框對象 PrintPreviewDialog printPreviewDialog1 = new PrintPreviewDialog(); //將printDocument1對象賦值給打印預覽對話框的Document屬性 printPreviewDialog1.Document = printDocument1; //打開打印預覽對話框 DialogResult result = printPreviewDialog1.ShowDialog(); if (result == DialogResult.OK) printDocument1.Print();//開始打印 } private void PrintDocument_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e) { //設置打印內容及其字體，顏色和位置 e.Graphics.DrawString("Hello World！", new Font(new FontFamily("黑體"), 24), System.Drawing.Brushes.Red, 50, 50); } }}打印時，會顯示下圖所示預覽畫面。
注意：PrintDialog與PrintPreviewDialog位于名稱空間System.Windows.Forms（程序集為System.Windows.Forms.dll）中，而PrintDocument位于名稱空間System.Drawing.Printing（程序集為System.Drawing.dll）中。
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