经典ASP.NET打印技术

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）

以下为引用的内容： 〈%@ 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：

以下为引用的内容： 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(); } %>

以下为引用的内容： 〈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>