Web使用热敏打印小票(IE环境)
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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>
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