C#打印类PrintDocument、PrintDialog、PrintPreviewDialog使用示例

1.使用printdocument进行打印

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)
    {
      //实例化打印对象
      printdocument printdocument1 = new printdocument();
      //设置打印用的纸张,当设置为custom的时候，可以自定义纸张的大小
      printdocument1.defaultpagesettings.papersize = new papersize("custum", 500, 500);
      //注册printpage事件，打印每一页时会触发该事件
      printdocument1.printpage += new printpageeventhandler(this.printdocument_printpage);
      //开始打印
      printdocument1.print();
    }
    private void printdocument_printpage(object sender, system.drawing.printing.printpageeventargs e)
    {
      //设置打印内容及其字体，颜色和位置
      e.graphics.drawstring("hello world！", new font(new fontfamily("黑体"), 24), system.drawing.brushes.red, 50, 50);
    }
  }
}

2.使用printdialog增加打印对话框

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)
    {
      //实例化打印对象
      printdocument printdocument1 = new printdocument();
      //设置打印用的纸张,当设置为custom的时候，可以自定义纸张的大小
      printdocument1.defaultpagesettings.papersize = new papersize("custum", 500, 500);
      //注册printpage事件，打印每一页时会触发该事件
      printdocument1.printpage += new printpageeventhandler(this.printdocument_printpage);
   
      //初始化打印对话框对象
      printdialog printdialog1 = new printdialog();
      //将printdialog.useexdialog属性设置为true，才可显示出打印对话框
      printdialog1.useexdialog = true;
      //将printdocument1对象赋值给打印对话框的document属性
      printdialog1.document = printdocument1;
      //打开打印对话框
      dialogresult result = printdialog1.showdialog();
      if (result == dialogresult.ok)         
        printdocument1.print();//开始打印
    }
    private void printdocument_printpage(object sender, system.drawing.printing.printpageeventargs e)
    {
      //设置打印内容及其字体，颜色和位置
      e.graphics.drawstring("hello world！", new font(new fontfamily("黑体"), 24), system.drawing.brushes.red, 50, 50);
    }
  }
}

打印对话框如下图所示。

3.使用printpreviewdialog增加打印预览对话框

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)
    {
      //实例化打印对象
      printdocument printdocument1 = new printdocument();
      //设置打印用的纸张,当设置为custom的时候，可以自定义纸张的大小
      printdocument1.defaultpagesettings.papersize = new papersize("custum", 500, 500);
      //注册printpage事件，打印每一页时会触发该事件
      printdocument1.printpage += new printpageeventhandler(this.printdocument_printpage);
   
      //初始化打印预览对话框对象
      printpreviewdialog printpreviewdialog1 = new printpreviewdialog();
      //将printdocument1对象赋值给打印预览对话框的document属性
      printpreviewdialog1.document = printdocument1;
      //打开打印预览对话框
      dialogresult result = printpreviewdialog1.showdialog();
      if (result == dialogresult.ok)         
        printdocument1.print();//开始打印
    }
    private void printdocument_printpage(object sender, system.drawing.printing.printpageeventargs e)
    {
      //设置打印内容及其字体，颜色和位置
      e.graphics.drawstring("hello world！", new font(new fontfamily("黑体"), 24), system.drawing.brushes.red, 50, 50);
    }
  }
}

打印时，会显示下图所示预览画面。

注意：printdialog与printpreviewdialog位于名称空间system.windows.forms（程序集为system.windows.forms.dll）中，而printdocument位于名称空间system.drawing.printing（程序集为system.drawing.dll）中。