打印<div id="printarea"></div> only?

如何打印指定的div(无需手动禁用页面上的所有其他内容)?

我想要避免一个新的预览对话框，所以用这个内容创建一个新窗口是没有用的。

该页面包含了几个表格，其中一个包含了我想打印的div -表格是用web的视觉样式设计的，不应该显示在打印中。

当前回答

没有CSS小丑，html和纯javascript与iframe工作最好。然后只需点击文本，你想打印。带有文本内容的id元素的当前示例;

html的身体:

<div id="monitor" onclick="idElementPrint()">text i want to print</div>

纯javascript:

//or: monitor.textContent = "click me to print textual content";

const idElementPrint = () => {
    let ifram = document.createElement("iframe");
    ifram.style = "display:none";
    document.body.appendChild(ifram);
    pri = ifram.contentWindow;
    pri.document.open();
    pri.document.write(monitor.textContent);
    pri.document.close();
    pri.focus();
    pri.print();
    }

2020-11-10 16:51:12

其他回答

我来这个派对已经很晚了，但我想提出另一种方法。我写了一个叫做PrintElements的小JavaScript模块，用于动态打印网页的各个部分。

It works by iterating through selected node elements, and for each node, it traverses up the DOM tree until the BODY element. At each level, including the initial one (which is the to-be-printed node’s level), it attaches a marker class (pe-preserve-print) to the current node. Then attaches another marker class (pe-no-print) to all siblings of the current node, but only if there is no pe-preserve-print class on them. As a third act, it also attaches another class to preserved ancestor elements pe-preserve-ancestor.

一个非常简单的补充只打印的css将隐藏和显示各自的元素。这种方法的一些好处是保留了所有的样式，它不需要打开一个新窗口，不需要移动大量的DOM元素，而且通常它对原始文档是非侵入性的。

请参阅演示，或阅读相关文章以获得更多详细信息。

2019-03-10 19:07:36

步骤1:在head标记中编写以下javascript代码

<script language="javascript">
function PrintMe(DivID) {
var disp_setting="toolbar=yes,location=no,";
disp_setting+="directories=yes,menubar=yes,";
disp_setting+="scrollbars=yes,width=650, height=600, left=100, top=25";
   var content_vlue = document.getElementById(DivID).innerHTML;
   var docprint=window.open("","",disp_setting);
   docprint.document.open();
   docprint.document.write('<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"');
   docprint.document.write('"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">');
   docprint.document.write('<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">');
   docprint.document.write('<head><title>My Title</title>');
   docprint.document.write('<style type="text/css">body{ margin:0px;');
   docprint.document.write('font-family:verdana,Arial;color:#000;');
   docprint.document.write('font-family:Verdana, Geneva, sans-serif; font-size:12px;}');
   docprint.document.write('a{color:#000;text-decoration:none;} </style>');
   docprint.document.write('</head><body onLoad="self.print()"><center>');
   docprint.document.write(content_vlue);
   docprint.document.write('</center></body></html>');
   docprint.document.close();
   docprint.focus();
}
</script>

步骤2:通过onclick事件调用PrintMe('DivID')函数。

<input type="button" name="btnprint" value="Print" onclick="PrintMe('divid')"/>
<div id="divid">
here is some text to print inside this div with an id 'divid'
</div>

2013-04-09 11:38:46

所有答案都有利弊，不能用于所有情况。它们分为三类:

使用打印样式表。这就要求整个网站都能识别打印。隐藏<body>中的所有元素，只显示可打印的元素。这对于简单的页面很有效，但是对于复杂的页面就有些棘手了。打开一个包含可打印元素内容的新窗口，或者将<body>内容替换为元素内容。第一种会丢失所有的风格，第二种是混乱的，可能会破坏事件。

There is no one solution that will work well for all cases, so it is good to have all those choices and I'm adding another solution that works much better in some cases. This solution is a hybrid of two categories: hide all content of <body>, then copy the content of the printable element to a new <div> and append it to <body>. After printing, remove the newly added <div> and show the content of <body> back. This way, you won't lose the styles or events, and you don't mess up with opening a new window. But like all other solutions, it won't work well for all cases. If your printable element's styles depends on its parents, you'll lose those styles. It is still much easier to style your printable elements independently from its parents than having to style the entire website for printing.

唯一的障碍是如何选择<body>的所有内容。对于简单的页面，通用样式体>*就可以了。然而，复杂的页面通常在正文的末尾有<script>标记'，也有一些'标记用于对话框等。隐藏所有这些都是可以的，但是在打印后不希望显示它们。

在我的情况下，我建立所有的网站与三个部分内<体>:<头>，<脚>，和他们之间<div id="内容">。根据您的情况调整下面函数的第一行:

function PrintArea(selector) {
    //First hide all content in body.
    var all = $("body > header, body > #Content, body > footer")
    all.hide();
    //Append a div for printing.
    $("body").append('<div id="PrintMe">');
    //Copy content of printing area to the printing div.
    var p = $("#PrintMe");
    p.html($(selector).html());
    //Call the print dialog.
    window.print();
    //Remove the printing div.
    p.remove();
    //Show all content in body.
    all.show();
}

我使用jQuery是因为它更干净、更简单，但如果您愿意，也可以轻松地将其转换为普通的JavaScript。当然，对于局部变量，你可以把var改成let。

2021-06-09 17:37:16

我尝试了提供的许多解决方案。没有一个是完美的。它们要么丢失CSS，要么不能在所有浏览器中工作。我找到了一个完美而简单的解决方案，既不丢失CSS，也适用于所有浏览器。

Html

<div class="row" id="print-div">
      Your html 
    </div>

打印稿

let popupWin = window.open('', '_blank', 'width=1080,height=595');
let printContents = document.getElementById("print-div").innerHTML;
let printHead = document.head.innerHTML;
popupWin.document
    .write(`<html>
     ${printHead}
    <body onload="window.print();">${printContents}</body></html>`);
popupWin.document.close();

2022-02-15 11:05:59

没有CSS小丑，html和纯javascript与iframe工作最好。然后只需点击文本，你想打印。带有文本内容的id元素的当前示例;

html的身体:

<div id="monitor" onclick="idElementPrint()">text i want to print</div>

纯javascript:

//or: monitor.textContent = "click me to print textual content";

const idElementPrint = () => {
    let ifram = document.createElement("iframe");
    ifram.style = "display:none";
    document.body.appendChild(ifram);
    pri = ifram.contentWindow;
    pri.document.open();
    pri.document.write(monitor.textContent);
    pri.document.close();
    pri.focus();
    pri.print();
    }

2020-11-10 16:51:12

打印<div id="printarea"></div> only?

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