Javascript 从 iframe 访问和更改父页面（使用 jquery）
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access and change parent page from iframe (with jquery)
提问by Dan
is there any way how to access from iframe to parrent page (and change parrent page)?
有什么方法可以从 iframe 访问父页面（并更改父页面）？
<body>
<iframe src="frame1.html" name="frame1" height="100%"></iframe>
<div id="test1"></div>
</body>
In frame1.html is <a href=..>and I want to add text "<h1>clicked</h1>" into <div id="test1"></div>, when the <a href..>was clicked.
在 frame1.html 中<a href=..>，我想在单击时将文本“ <h1>clicked</h1>”添加到 中。<div id="test1"></div><a href..>
Thanks.
谢谢。
回答by naota
If your child page (frame1.html) is located at the same domain as the parent page, You can write a code like below in the child window :
如果您的子页面（frame1.html）与父页面位于同一域，您可以在子窗口中编写如下代码：
$('#test1', parent.document).html('<h1>clicked</h1>');
The second parameter provides the contextin which to search the element matched by the first parameter. The Document is here:http://api.jquery.com/jQuery/#jQuery-selector-context
第二个参数提供了context搜索与第一个参数匹配的元素的位置。文档在这里：http: //api.jquery.com/jQuery/#jQuery-selector-context
jQuery( selector [, context ] )
So, your code (frame1.html) could go like this:
所以，你的代码 (frame1.html) 可能是这样的：
<a href="..."
onclick="$('#test1', parent.document).html('<h1>clicked</h1>');">click me</a>
Hope this helps.
希望这可以帮助。
回答by Christoph
Important note:Accessing in and out iframes is only possible, if both, parent and iframe are from the same domain, else you have no access due to Same Origin Policy.
重要提示：访问进出I帧才有可能，如果双方，父母和iframe都来自同一个域，否则你会有进不去同源策略。
Note, that both parts have their own document. Accessing the parent object from iframe is simple with
请注意，这两个部分都有自己的文档。从 iframe 访问父对象很简单
parent.document
and from parent it is one of the following:
来自父级，它是以下之一：
window.frames['iframeName']
(window.frames.length /*gives you the number of iframes in your document*/ )
or reference it with id and do the following (watch out for support!)
或使用 id 引用它并执行以下操作（注意支持！）
var iframe = document.getElementById('iframe');
var doc = iframe.contentDocument? iframe.contentDocument:iframe.contentWindow.document;
回答by Teja
The code below should work fine:
下面的代码应该可以正常工作：
$(parent.document).find("#selector");
The selector is from the parent document to perform some action. For Example:
选择器是从父文档中执行一些动作。例如：
$(parent.document).find("#selector").remove();
