window.print()未在打印预览中加载CSS

window.print() CSS not loaded in print preview

本文关键字：加载 CSS 打印 print window      更新时间：2023-09-26

我需要提供打印网页的一部分的选项。这是使用javascript的window.print()实现的，由Bill Paetzke回答。弹出窗口打开(这包含CSS样式)，打印对话框也打开。但是CSS样式没有显示在打印中。尝试@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的图像替换背景色，然后重复它。还有别的办法吗?

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>

因为你正在用没有任何样式id的html编写文档这意味着它只写div的内容，而不包含div。

使用这个来获取整个div

 $('<div/>').append($(elem).clone()).html();

看这个小提琴

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 

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;
}

我发现这个页面很有帮助。看一看

打印,打印预览与打印CSS工作很棒。我在openart产品页面上做的。现在我试着把它打印成pdf格式，如果你有一些线索的话，那就太好了

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