从多个iframe打印预览? [英] Print preview from multiple iframes?

问题描述

我在一个页面中有几个iframe.我想在打印预览中显示所有iframe内容作为iframe的快照.我对单个iframe使用了 window.print()，它工作正常，但是如何在多个框架中使用它呢?

I have several iframes in a page. I want to show in a print preview all the iframe contents as snapshots of iframes. I used window.print() for individual iframes, and it's working fine, but how do I do it for multiple frames?

推荐答案

您需要一对一聚焦所有帧并合并到打印报告中.

You need to focus all frames one-by-one and merge in print report.

您可以使用以下代码来实现:

You can achieve it, with this code:

HTML :

<button id="printButton" onclick="javascript:printPage()" >Print this page</button>

<h1 id='header'><b>Awesome Print Report</b></h1>
<iframe id="ifr1" src="http://amazon.com"></iframe>
<iframe id="ifr2" src="http://amazon.com"></iframe>
<iframe id="ifr3" src="http://amazon.com"></iframe>
<iframe id="ifr4" src="http://amazon.com"></iframe>
<iframe id="ifr5" src="http://amazon.com"></iframe>
<iframe id="ifr6" src="http://amazon.com"></iframe>

JavaScript :

function printPage() {

    window.print();

    for (var k = 0; k < window.frames.length; k++) {
        window.frames[k].focus();
        window.frames[k].print();
    }

}

CSS :

#header {
    margin - top: 20px;
}

@media print {
    #printButton {
        display: none;
    }
}

此CSS将在打印的报告上隐藏打印按钮.

这是您的JsFiddle: http://jsfiddle.net/zur4ik/r7pvF/

Here is JsFiddle for you: http://jsfiddle.net/zur4ik/r7pvF/

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