介绍一种Web上打印技术
一、
介绍
ScriptX
控件
对于B/S架构的项目中，Web打印最是让程序员头痛的技术，在这次项目中运用了第三方控件ScriptX解决了此技术包括各种汇总表，详细清单等等，但最大弊端就是打印的格式是死的，你要打印出怎样的格式必须自己来做，还有就是打印分页，它是按你设置的纸张大小来分的，所以必须人为控制，ScriptX控件所需文件ScriptX.cab。（ScriptX下载地址
http://www.meadroid.com/scriptx/freedep.asp ）
打印功能使用：
⑴ 用户在客户端单击“打印”按钮，第一次使用打印会弹出如下对话框
⑵ 单击“是”按钮，此时会把控件ScriptX下载到本机
⑶ 在打印窗口中有大标题、打印条件、打印列表，单击“打印”按钮进入打印浏览界面。
⑷ 单击“Print”按钮，听打印机声音响起。
二、
一个简单的
ScriptX
控件使用实例
1．界面文件 WebExample.aspx （其中kg.css是界面样式在这里就不介绍了）
<%@ Page language="c#" Codebehind="WebExample.aspx.cs" AutoEventWireup="false" Inherits="WebPrint.WebExample" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>一个简单的ScriptX打印</title>
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
<LINK href="kg.css" type="text/css" rel="stylesheet">
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="WebExample" method="post" runat="server">
<TABLE width="100%" height="100%">
<tr>
<td height="100">
</td>
</tr>
<tr>
<td style="HEIGHT: 14px" align="center">
<div id="divTableResult" name="divTableResult">
<asp:Label id="Label1" runat="server" Width="232px" Height="32px" Font-Size="Large">欢迎使用ScriptX打印</asp:Label>
</div>
</td>
</tr>
<tr>
<td align="center" valign="top">
<div id="divChartResult" name="divChartResult">
<asp:Image id="Image1" runat="server" ImageUrl="win2000.gif"></asp:Image>
</div>
</td>
</tr>
<tr>
<td align="center" valign="top">
<input id="btnPrint" style="WIDTH: 32px; HEIGHT: 19px" onclick="printResult();" type="button"
size="1" value="打印" name="btnPrint">
</td>
</tr>
</TABLE>
</form>
<script language="javascript">
function printResult()
{
//针对不同模块，设置打印参数
var title = 'ScriptX打印';//报表名称
var orien = 'true';//打印页面方向，true:纵向打印/false横向打印
//参数设置结束
var strURL;
title = escape(title);
//condition = escape(condition);
strURL = 'printContainer2.aspx?title='+title+'&orien='+orien;
window.open(strURL,'printResult','height=600, width=800, top=0, left=50,toolbar=no , menubar=no, scrollbars=yes, resizable=no, location=no, status=no');
}
</script>
</body>
</HTML>
说明：
⑴ <div id="divTableResult" name="divTableResult">和<div id="divChartResult" name="divChartResult"> 是在printContainer2.aspx文件中定义的传值标签，因此必须要有。
⑵ printResult（）方法用来声明传值内容，具体在方法中已说明
2．打印界面 printContainer2.aspx （其中print.css是打印样式就不介绍了）
<%@ Page language="c#" Codebehind="printContainer2.aspx.cs" AutoEventWireup="false" Inherits="WebPrint.printContainer2" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<%
string title = "查询打印";
‘用于title获取标题
if(Request.QueryString["title"].ToString().Trim()!=""){
title = Request.QueryString["title"].ToString().Trim();
}
‘用于orientation获取打印页面方向，true:纵向打印/false横向打印
string orientation = "true";
if(Request.QueryString["orien"].ToString().Trim()!=""){
orientation = Request.QueryString["orien"].ToString().Trim();
}
%>
<html>
<head>
<title>ScriptX 打印</title>
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta http-equiv="content-type" content="text/html; charset=gb2312">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
<link href="kg.css" rel="stylesheet" type="text/css">
<link href="print.css" rel="stylesheet" type="text/css" media="print" >
<script FOR=document event="onclick">
if(event.srcElement.tagName=='A'){
//alert('a click!');
event.cancelBubble = true;
}
</script>
<style type="text/css">
a:link {text-decoration:none}
a:visited {text-decoration:none}
a:active {text-decoration:none}
a:hover {text-decoration:none}
A { COLOR: #000000;TEXT-DECORATION: none; FONT-SIZE: 8pt;FONT-FAMILY: "";}
</style>
</head>
<body MS_POSITIONING="GridLayout" >
<!--这里调用控件ScriptX.cab-->
<object id="factory" viewastext style="display:none"
classid="clsid:1663ed61-23eb-11d2-b92f-008048fdd814"
codebase="ScriptX.cab#Version=6,1,431,2">
</object>
<SCRIPT defer>
//用于设置打印参数
function printBase() {
factory.printing.footer = "&b ScriptX 打印 &b" //页眉
factory.printing.footer = "" //页脚
factory.printing.portrait = <%=orientation%> //true为纵向打印，flase为横向打印
factory.printing.leftMargin = 1.5 //左页边距
factory.printing.topMargin = 0.5 //上页边距
factory.printing.rightMargin = 0.5 //右页边距
factory.printing.bottomMargin = 1.0 //下页边距
}
</SCRIPT>
<table width="100%" border="0" cellspacing="0" cellpadding="0" align="center" bordercolor="#FFFFFF">
<tr bordercolor="#FFFFFF">
<td >
<table width="70%" border="0" cellspacing="0" cellpadding="2" align="center">
<tr>
<td align="center"><font size="5" face="宋体"><b><div name="divTitle" id="divTitle"></div></b></font></td>
</tr>
<tr>
<td align="center">
<div id="divReport" name="divReport">
<input type="button" name="cmdPRINT" id="cmdPRINT" onclick="printReport()" value="打印">
<input type="button" onclick="window.close();" value="关闭">
</div>
</td>
</tr>
</table>
</td>
</tr>
</table>
<table width="100%" border="0" cellspacing="0" cellpadding="2" align="center">
<tr><td align="center">
<!-- 用于显示divTableContainer标签的值 -->
<div id="divTableContainer" name="divTableContainer"></div>
</td></tr>
<tr><td align="center">
<!-- 用于显示divChartContainer标签的值 -->
<div id="divChartContainer" name="divChartContainer"></div>
</td></tr>
</table>
</body>
<script language="javascript">
//使界面最大化
maxWin();
var needcon='';
document.all.divTitle.innerText = unescape('<%=title%>');
//用于把父窗体的divTableResult和divChartResult标签的值分别转入divTableContainer 和divChartContainer标签中
var tableContent = window.opener.document.all.divTableResult.innerHTML;
tableContent = replaceAll(tableContent,"<A ","<span ");
tableContent = replaceAll(tableContent,"</A> ","</span> ");
tableContent = replaceAll(tableContent,"<a ","<span ");
tableContent = replaceAll(tableContent,"</a> ","</span> ");
tableContent = replaceAll(tableContent,"<input ","<font ");
tableContent = replaceAll(tableContent,"<INPUT ","<font ");
document.all.divTableContainer.innerHTML = tableContent;
document.all.divChartContainer.innerHTML = window.opener.document.all.divChartResult.innerHTML;
//用于调用设置打印参数的方法和显示预览界面
function printReport(){
printBase();
//window.print();
factory.printing.Preview();
}
function replaceAll( str, from, to ) {
var idx = str.indexOf( from );
while ( idx > -1 ) {
str = str.replace( from, to );
idx = str.indexOf( from );
}
return str;
}
function maxWin()
{
var aw = screen.availWidth;
var ah = screen.availHeight;
window.moveTo(0, 0);
window.resizeTo(aw, ah);
}
</script>
</html>
三、
参考文件
源代码
源代码