|
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復(fù)制代碼 代碼如下:
<object id="WebBrowser" classid=CLSID:8856F961-340A-11D0-A96B-00C04FD705A2 height="0" width="0">
</object>
到頁面，或者使用JavaScript在需要的時候臨時添加也可以：
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 隱藏不打印的頁面元素和分頁
CSS 有個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起作用，不會影響顯示界面。
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面元素添加： class="Noprint" ，那就不會出現(xiàn)在打印和打印預(yù)覽中了。
想分頁的地方添加： <div class="PageNext"></div> 就可以了。
4．打印頁面的特定部分
通過將需要打印的特定部分另建一個頁面，然后裝入主頁面的一個IFrame中，再調(diào)用IFrame的打印方法，只打印IFrame中的內(nèi)容實現(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中所裝載頁面的打印效果在所裝載頁面設(shè)置就可以了，如分頁等。
5．后臺打印
通過建一個隱藏Iframe實現(xiàn)的，當(dāng)然仍然會有頁面裝載的過程。
下面的函數(shù)創(chuàng)建Iframe裝載頁面并打印。如 printHidden(url) //url為頁面地址
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>
JavaScript技術(shù)：web 頁面分頁打印的實現(xiàn)，轉(zhuǎn)載需保留來源！
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