web 頁(yè)面分頁(yè)打印的實(shí)現(xiàn)

更新時(shí)間：2009年06月22日 12:39:09 作者：

網(wǎng)上找的，經(jīng)我整理添加demo如下

1．首先引入一個(gè)WebBrowser在需要打印的頁(yè)面，可以直接添加：

 
<object id="WebBrowser" classid=CLSID:8856F961-340A-11D0-A96B-00C04FD705A2 height="0" width="0"> 
</object> 

到頁(yè)面，或者使用JavaScript在需要的時(shí)候臨時(shí)添加也可以：

復(fù)制代碼代碼如下:

 
document.body.insertAdjacentHTML("beforeEnd", 
"<object id=\"WebBrowser\" width=0 height=0 \ 
classid=\"clsid:8856F961-340A-11D0-A96B-00C04FD705A2\">"); 

2 .頁(yè)面設(shè)置和打印預(yù)覽
如下所示，直接調(diào)用即可

復(fù)制代碼代碼如下:

 
document.all.WebBrowser.ExecWB(6,6) 直接打印 
document.all.WebBrowser.ExecWB(8,1) 頁(yè)面設(shè)置 
document.all.WebBrowser.ExecWB(7,1) 打印預(yù)覽 

或者：

復(fù)制代碼代碼如下:

execScript("document.all.WebBrowser.ExecWB 7, 1","VBScript");

3 隱藏不打印的頁(yè)面元素和分頁(yè)
CSS 有個(gè)Media 屬性，可以分開設(shè)置打印和顯示的格式。
如 <style media="print" type="text/css"> …</style> 中間的格式將只在打印時(shí)起作用，不會(huì)影響顯示界面。
所以可以設(shè)定
<style media="print" type="text/css">
.Noprint{display:none;}
.PageNext{page-break-after: always;}
</style>
然后給不想打印的頁(yè)面元素添加： class="Noprint" ，那就不會(huì)出現(xiàn)在打印和打印預(yù)覽中了。
想分頁(yè)的地方添加： <div class="PageNext"></div> 就可以了。
4．打印頁(yè)面的特定部分
通過將需要打印的特定部分另建一個(gè)頁(yè)面，然后裝入主頁(yè)面的一個(gè)IFrame中，再調(diào)用IFrame的打印方法，只打印IFrame中的內(nèi)容實(shí)現(xiàn)的。
如：
<iframe style="visibility: visible" name="FrameId" width="100%" height="30%" src="NeedPrintedPage.asp"></iframe>
下面的pringFrame js函數(shù)將只打印Iframe中的內(nèi)容，可以直接引用使用,如printFrame(FrameId);

復(fù)制代碼代碼如下:

 
window.print = printFrame; 
// main stuff 
function printFrame(frame, onfinish) { 
if ( !frame ) frame = window; 
function execOnFinish() { 
switch ( typeof(onfinish) ) { 
case "string": execScript(onfinish); break; 
case "function": onfinish(); 
} 
if ( focused && !focused.disabled ) focused.focus(); 
} 
if (( frame.document.readyState !== "complete") &&( !frame.document.confirm("The document to print is not downloaded yet! Continue with printing?") )) 
{ 
execOnFinish(); 
return; 
} 
var eventScope = printGetEventScope(frame); 
var focused = document.activeElement; 
window.printHelper = function() { 
execScript("on error resume next: printWB.ExecWB 6, 1", "VBScript"); 
printFireEvent(frame, eventScope, "onafterprint"); 
printWB.outerHTML = ""; 
execOnFinish(); 
window.printHelper = null; 
} 
document.body.insertAdjacentHTML("beforeEnd", 
"<object id=\"printWB\" width=0 height=0 \ 
classid=\"clsid:8856F961-340A-11D0-A96B-00C04FD705A2\">"); 
printFireEvent(frame, eventScope, "onbeforeprint"); 
frame.focus(); 
window.printHelper = printHelper; 
setTimeout("window.printHelper()", 0); 
} 
// helpers 
function printIsNativeSupport() { 
var agent = window.navigator.userAgent; 
var i = agent.indexOf("MSIE ")+5; 
return parseInt(agent.substr(i)) >= 5 && agent.indexOf("5.0b1") < 0; 
} 
function printFireEvent(frame, obj, name) { 
var handler = obj[name]; 
switch ( typeof(handler) ) { 
case "string": frame.execScript(handler); break; 
case "function": handler(); 
} 
} 
function printGetEventScope(frame) { 
var frameset = frame.document.all.tags("FRAMESET"); 
if ( frameset.length ) return frameset[0]; 
return frame.document.body; 
} 
Iframe中所裝載頁(yè)面的打印效果在所裝載頁(yè)面設(shè)置就可以了，如分頁(yè)等。 
5．后臺(tái)打印 
通過建一個(gè)隱藏Iframe實(shí)現(xiàn)的，當(dāng)然仍然會(huì)有頁(yè)面裝載的過程。 
下面的函數(shù)創(chuàng)建Iframe裝載頁(yè)面并打印。如 printHidden(url) //url為頁(yè)面地址 
function printHidden(url) { 
document.body.insertAdjacentHTML("beforeEnd", 
"<iframe name=printHiddenFrame width=0 height=0></iframe>"); 
var doc = printHiddenFrame.document; 
doc.open(); 
doc.write("<body onload=\"parent.onprintHiddenFrame()\">"); 
doc.write("<iframe name=printMe width=0 height=0 src=\"" + 
url + "\"></iframe>"); 
doc.write("</body>"); 
doc.close(); 
} 
function onprintHiddenFrame() { 
function onfinish() { 
printHiddenFrame.outerHTML = ""; 
if ( window.onprintcomplete ) window.onprintcomplete(); 
} 
printFrame(printHiddenFrame.printMe, onfinish); 
} 
它用到了printFrame，所以別忘了引用前面的函數(shù)。 
以下為demo: 
<html> 
<head> 
<title>報(bào)表</title> 
<object id="WebBrowser" 
classid=CLSID:8856F961-340A-11D0-A96B-00C04FD705A2 height="0" 
width="0"> 
</object> 
<style media="print" type="text/css"> 
.Noprint{display:none;} 
.PageNext{page-break-after: always;} 
</style> 
</head> 
<body> 
<div class="Noprint"> 
<input type="button" value="print" 
onclick="document.all.WebBrowser.ExecWB(6,6)"> 
<input type="button" value="printset" 
onclick="document.all.WebBrowser.ExecWB(8,1)"> 
<input type="button" value="view" 
onclick="document.all.WebBrowser.ExecWB(7,1)"> 
<input type="button" value="frame" 
onclick="printHidden(FrameId)"> 
</div> 
<div class="PageNext"> 
1 
</div> 
<div class="PageNext"> 
2 
</div> 
<iframe style="visibility: visible" diplay="none"name="FrameId" width="100%" 
height="30%" src="2.html"></iframe> 
</body> 
</html> 
<script type="text/javascript"> 
window.print = printFrame; 
// main stuff 
function printFrame(frame, onfinish) { 
if ( !frame ) frame = window; 
function execOnFinish() { 
switch ( typeof(onfinish) ) { 
case "string": execScript(onfinish); break; 
case "function": onfinish(); 
} 
if ( focused && !focused.disabled ) focused.focus(); 
} 
if (( frame.document.readyState !== "complete") &&( !frame.document.confirm("The document to print is not downloaded yet! Continue with printing?") )) 
{ 
execOnFinish(); 
return; 
} 
var eventScope = printGetEventScope(frame); 
var focused = document.activeElement; 
window.printHelper = function() { 
execScript("on error resume next: printWB.ExecWB 6, 1", "VBScript"); 
printFireEvent(frame, eventScope, "onafterprint"); 
printWB.outerHTML = ""; 
execOnFinish(); 
window.printHelper = null; 
} 
document.body.insertAdjacentHTML("beforeEnd", 
"<object id=\"printWB\" width=0 height=0 \ 
classid=\"clsid:8856F961-340A-11D0-A96B-00C04FD705A2\">"); 
printFireEvent(frame, eventScope, "onbeforeprint"); 
frame.focus(); 
window.printHelper = printHelper; 
setTimeout("window.printHelper()", 0); 
} 
// helpers 
function printIsNativeSupport() { 
var agent = window.navigator.userAgent; 
var i = agent.indexOf("MSIE ")+5; 
return parseInt(agent.substr(i)) >= 5 && agent.indexOf("5.0b1") < 0; 
} 
function printFireEvent(frame, obj, name) { 
var handler = obj[name]; 
switch ( typeof(handler) ) { 
case "string": frame.execScript(handler); break; 
case "function": handler(); 
} 
} 
function printGetEventScope(frame) { 
var frameset = frame.document.all.tags("FRAMESET"); 
if ( frameset.length ) return frameset[0]; 
return frame.document.body; 
} 
function printHidden(url) { 
document.body.insertAdjacentHTML("beforeEnd", 
"<iframe name=printHiddenFrame width=0 height=0></iframe>"); 
var doc = printHiddenFrame.document; 
doc.open(); 
doc.write("<body onload=\"parent.onprintHiddenFrame()\">"); 
doc.write("<iframe name=printMe width=0 height=0 src=\"" + 
url + "\"></iframe>"); 
doc.write("</body>"); 
doc.close(); 
} 
function onprintHiddenFrame() { 
function onfinish() { 
printHiddenFrame.outerHTML = ""; 
if ( window.onprintcomplete ) window.onprintcomplete(); 
} 
printFrame(printHiddenFrame.printMe, onfinish); 
} 
</script> 