C#利用PrintDocument定制打印单据的小例子

前言

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 = 200;//单位是mm

  private int height_p = 70;//单位是mm

  private int margin_lr = 2;//左右边距

  private int margin_tb = 2;//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(',')[0]), int.parse(this.txtstart.text.trim(new char[] { '(', ')' }).split(',')[1])),
    end = new point(int.parse(this.txtend.text.trim(new char[] { '(', ')' }).split(',')[0]), int.parse(this.txtend.text.trim(new char[] { '(', ')' }).split(',')[1]))
    
   };
   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 = 1;
   g.pageunit = graphicsunit.millimeter;
   //先画一个矩形
   pen linecolor = new pen(color.black, 0.2f);
   g.fillrectangle(brushes.linen,0,0,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(',')[0]), int.parse(this.txtstart.text.trim(new char[] { '(', ')' }).split(',')[1])),
    end = new point(int.parse(this.txtend.text.trim(new char[] { '(', ')' }).split(',')[0]), int.parse(this.txtend.text.trim(new char[] { '(', ')' }).split(',')[1]))

   };
   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(',')[0]), int.parse(this.txtlocation.text.trim(new char[] { '(', ')' }).split(',')[1]))
   };
   lstprintinfos.add(p1);
   //内容
   textbox[] t = new textbox[12] { t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12 };
   textbox[] l = new textbox[12] { l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12 };
   for (int i = 0; i < 12; i++)
   {
    printinfo p = new printinfo()
    {
     prttype = printtype.text,
     prtcolor = color.black,
     content = t[i].text.trim(),
     size = 12,
     fontstyle = fontstyle.regular,
     start = new point(int.parse(l[i].text.trim(new char[] { '(', ')' }).split(',')[0]), int.parse(l[i].text.trim(new char[] { '(', ')' }).split(',')[1]))
    };
    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 =11,
    fontstyle =fontstyle.regular,
    start = new point(145,63)
   };
   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

总结

以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作具有一定的参考学习价值，谢谢大家对的支持。