window.print() CSS 未在打印预览中加载
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window.print() CSS not loaded in print preview
提问by Balaji Krishnan
I need to provide option to print a part of the webpage. This was implemented using the javascript window.print()answered by: Bill Paetzke. The pop up window opens up (this contains CSS style) and the print dialog also opens. But the CSS style does not show up in the print. Tried @media =print but that also does not work. CSS style mainly consists of background color. One option that I got was to replace the background color with an image of 1px * 1px and repeat it. Is there any other way?
我需要提供打印部分网页的选项。这是使用 javascript window.print()实现的，由 Bill Paetzke 回答。弹出窗口打开（这包含 CSS 样式）并且打印对话框也打开。但是 CSS 样式没有显示在打印中。试过@media =print 但这也不起作用。CSS 样式主要由背景颜色组成。我得到的一个选择是用 1px * 1px 的图像替换背景颜色并重复它。有没有其他办法？
Browser: IE7 Code:
浏览器：IE7 代码：
<html>
<head>
<style type="text/css" media="print,screen">
.hideMe{
display:block;
}
.PrintClass {
display:block;
}
.NoPrintClass{
display:block;
}
</style>
<script type="text/javascript"
src="http://jqueryjs.googlecode.com/files/jquery-1.3.1.min.js"> </script>
<script type="text/javascript">
function PrintElem(elem)
{
Popup($('<div/>').append($(elem).clone()).html());
}
function Popup(data)
{
var mywindow;
mywindow = window.open('', 'mydiv','height=400,width=600,scrollbars=yes','');
mywindow.document.write('<html><head><title>my div</title>');
mywindow.document.write('<style type="text/css" media="print,screen">.hideMe{display:none;}.NoPrintClass{display:none;}</style>');
mywindow.document.write('</head><body>');
mywindow.document.write('drop down selected value in parent: '+mywindow.opener.document.getElementById('testSelect').options[mywindow.opener.document.getElementById('testSelect').selectedIndex].text+'<br/>');
mywindow.document.write('contentStarts<br/>');
mywindow.document.write(' using jquery: '+data);
mywindow.document.write(' using javascript: '+mywindow.opener.document.getElementById('mydiv').innerHTML);
mywindow.document.write('<br/>contentEnds');
mywindow.document.write('<br/>');
mywindow.document.write('</body></html>');
mywindow.document.focus();
mywindow.document.close();
mywindow.print();
return true;
}
</script>
</head>
<body>
This is not be printed<br/>
<div id="mydiv">This content is to be printed<br/>
<div class="hideMe"><select id="testSelect">
<option>1</option>
<option>2</option>
<option>3</option>
</select>
</div>
<br/>
This will also be printed
<br/>print bgcolor
<div style="background:red;" class="PrintClass">print</div><br/>
<div style="background:green;" class="PrintClass">print</div><br/>
<div style="background:red;" class="NoPrintClass">not to print</div><br/>
<div style="background:green;" class="NoPrintClass">not to print</div><br/>
<div style="background:red;" class="PrintClass">print</div><br/>
<div style="background:green;" class="PrintClass">print</div><br/>
<br/> print image
<div style="background-image:url('red.png');background-repeat:repeat;" class="PrintClass">print</div><br/>
<div style="background-image:url('green.png');background-repeat:repeat;" class="PrintClass">print</div><br/>
<div style="background-image:url('red.png');background-repeat:repeat;" class="NoPrintClass">not to print</div><br/>
<div style="background-image:url('green.png');background-repeat:repeat;" class="NoPrintClass">not to print</div><br/>
<div style="background-image:url('red.png');background-repeat:repeat;" class="PrintClass">print</div><br/>
<div style="background-image:url('green.png');background-repeat:repeat;" class="PrintClass">print</div><br/>
<text>some text
<div style="position:relative;">
<img src="green.png" width="100px" height="100px" value="abcd">dfads
<div style="postion:absolute">wpeoriu</div>
</div>
</img>
</text>
</div>
<div>This will not be printed.</div>
<br/>
<div id="anotherdiv">Nor will this.</div>
<input type="button" value="Print Div" onclick="PrintElem('mydiv')" />
</body>
</html>
回答by NullPointerException
Because you are writing document with the html without any styles ids That means it is only writing the content of div without div around it.
因为您正在使用没有任何样式 ID 的 html 编写文档这意味着它只编写 div 的内容而没有 div 围绕它。
use this to get the whole div
使用它来获取整个 div
$('<div/>').append($(elem).clone()).html();
See this fiddle
看到这个小提琴
Html
html
<div id="mydiv">
This will be printed. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque a quam at nibh adipiscing interdum. Nulla vitae accumsan ante.
</div>
<div>
This will not be printed.
</div>
<div id="anotherdiv">
Nor will this.
</div>
<input type="button" value="Print Div" onclick="PrintElem('#mydiv')" />
JavaScript
JavaScript
function PrintElem(elem)
{
Popup($('<div/>').append($(elem).clone()).html());
}
function Popup(data)
{
var mywindow = window.open('', 'my div', 'height=400,width=600');
mywindow.document.write('<html><head><title>my div</title>');
mywindow.document.write('<link rel="stylesheet" href="http://www.dynamicdrive.com/ddincludes/mainstyle.css" type="text/css" />');
mywindow.document.write('</head><body >');
mywindow.document.write(data);
mywindow.document.write('</body></html>');
mywindow.print();
// mywindow.close();
return true;
}
