Web使用热敏打印小票(IE环境)

zls365

发布于 2021-03-16 16:19:08

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发布于 2021-03-16 16:19:08

文章被收录于专栏：CSharp编程大全CSharp编程大全

概述

在html页下使用Epson P60II 热敏纸下打印小票，使用的打印方案为调用window.print()。

代码实现

1、定义窗体，设置宽度和高度


<body onload="window.external.Print(0,0);" style="margin-top:0px;" >
    <form id="form1" runat="server" >
  
    <div align="center" valign="top" id ="PrintDoc" >
   
                        <table style="width:4.8cm; height:9.9cm; border-width:1px; border-color:Red; border-style:dashed" >
                        <tr align="center" valign="top">
                        <td>
                        <asp:Label id="Label_proname" runat="server" >
                                  </asp:Label>
                                   
                        </td>
                        </tr>
                        </table>
                
</div>
    
  
    </form>
</body>

2、使用ActiveXObject，创建 Scripting.FileSystemObject


function print_onclick() {
  var objfs = new ActiveXObject("Scripting.FileSystemObject");
  var objprinter=objfs.CreateTextFile("LPT1:",true);
  objprinter.Write(String.fromCharCode(0x1B) + "@");
  objprinter.Write(String.fromCharCode(0x1B) + String.fromCharCode(0x69));
  objprinter.Close();
}

3、设置隐藏模式打印

 <style media="print">.Noprint { DISPLAY: none }</style>

4、填充数据

 private void ListBind()
    {
        try
        {
            string strVoucherID = Request.QueryString["voucherid"];
            if (strVoucherID != null && strVoucherID != string.Empty)
            {
                this.Label_proname.Text = this.DataBase.GetShopVoucherDetail(strVoucherID);
                this.DataBase.VoucherPrintUpdate(strVoucherID, this.DataBase.Areaid);
            }

        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.Message);
        }

    }

完整代码

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Print.aspx.cs" Inherits="Print"  enableEventValidation="false" validateRequest="false" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
    
<head runat="server">
    <title>好牛网移动优惠卷</title>
    <style media="print">.Noprint { DISPLAY: none }</style>
<script type='text/javascript'> 

function print_onclick() {
  var objfs = new ActiveXObject("Scripting.FileSystemObject");
  var objprinter=objfs.CreateTextFile("LPT1:",true);
  objprinter.Write(String.fromCharCode(0x1B) + "@");
  objprinter.Write(String.fromCharCode(0x1B) + String.fromCharCode(0x69));
  objprinter.Close();
}
</script>  
<script language="javascript">
             function PrintCutrefresh()
{
                print_onclick();
                  
             }
             setTimeout('PrintCutrefresh()',7000); //指定7秒后切纸
</script>
</head>
<body onload="window.external.Print(0,0);" style="margin-top:0px;" >
    <form id="form1" runat="server" >
  
    <div align="center" valign="top" id ="PrintDoc" >
   
                        <table style="width:4.8cm; height:9.9cm; border-width:1px; border-color:Red; border-style:dashed" >
                        <tr align="center" valign="top">
                        <td>
                        <asp:Label id="Label_proname" runat="server" >
                                  </asp:Label>
                                   
                        </td>
                        </tr>
                        </table>
                
</div>
    
  
    </form>
</body>
</html>

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原始发表：2021-03-14，如有侵权请联系 cloudcommunity@tencent.com 删除

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