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jquery, JS call the method of the iframe parent window and child window elements

Source: Internet
Author: User
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1. jquery Gets the parent page element code in the IFRAME sub-page as follows:

$ ("#objid", parent.document)

2. jquery Gets the elements of the IFRAME child page on the parent page

The code is as follows:

$ ("#objid", Document.frames (' Iframename '). Document)

3.js Gets the parent page element code in the IFRAME sub-page as follows:

Indow.parent.document.getElementByIdx_x ("Element id");

4.js gets the IFRAME child page element code on the parent page as follows:

window.frames["iframe_id"].document.getelementbyidx_x ("element ID");

5. Call the parent class function inside the subclass IFRAME:

Window.parent.func ();

Using the native JS on the parent page to get the elements of the IFRAME sub-page, as well as the child page to get the parent page elements, which is usually used in the method, here is an example to summarize the following:

1. Parent page (demo.html), modify sub-page in parent page the background color of the div is gray and the original is red:

[HTML]View PlainCopy
  2. <! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
  4. <HTML xmlns="http://www.w3.org/1999/xhtml">
  6. <head>
  8. <meta http-equiv= "content-type" content= "text/html; Charset=utf-8 " />
  10. <title>demo Main Page </title>
  12. <script type="Text/javascript">
  14. window.onload = function () {
  16. var _iframe = document.getElementById (' Iframeid '). Contentwindow;
  18. var _div =_iframe.document.getelementbyid (' objId ');
  20. _div.style.backgroundcolor = ' #ccc ';
  22. }
  26. </Script>
  28. </head>
  32. <body>
  36. <div id=' Pardiv '> Parent page </div>
  38. <iframe src="demo-iframe.html" id="Iframeid" height= "Width=" ></iframe>
  40. </body>
  42. </html>


2, sub-page (demo-iframe.html), in the child page to modify the parent page div font color is red, originally black:

[HTML]View PlainCopy
  2. <! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
  4. <HTML xmlns="http://www.w3.org/1999/xhtml">
  6. <head>
  8. <meta http-equiv= "content-type" content= "text/html; Charset=utf-8 " />
  10. <title> sub-page demo13-iframe.html</title>
  12. <script type="Text/javascript">
  14. window.onload = function () {
  16. var _iframe = window.parent;
  18. var _div =_iframe.document.getelementbyid (' Pardiv ');
  20. _div.style.color = ' red ';
  22. }
  24. </Script>
  26. </head>
  30. <body>
  32. <div id= 'objId ' style=' width:100px;height:100px;background-color:red; ' > Sub page </div>
  34. </body>
  36. </html>


3.:

(1) When JS is not added:


(2) after adding JS:

jquery, JS call the method of the iframe parent window and child window elements

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