如何在 Javascript 中将属性值从 iframe 传递给父级？
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How can I pass attribute value from iframe to parent in Javascript?
提问by nandu3685
How can I pass attribute value from iframe to parent?
如何将属性值从 iframe 传递给父级？
I.e. iframe (frame1) has <a id="a1" href="http://www.infinitybusiness.net">. How can I get value of hrefin my parent page?
即 iframe (frame1) 有<a id="a1" href="http://www.infinitybusiness.net">. 如何href在父页面中获取值？
采纳答案by DuduAlul
This is a great tutorial that talks exactly about that: http://www.roseindia.net/java/pass-value-example/pass-value-from-iframe-parent.shtml
这是一个很好的教程，正好讨论了这个问题：http: //www.roseindia.net/java/pass-value-example/pass-value-from-iframe-parent.shtml
you can use it only if the two pages are served from the same domain. There are many solution for cross-domain scripting as well..you can read more here: http://softwareas.com/cross-domain-communication-with-iframes
只有当两个页面来自同一个域时，您才能使用它。跨域脚本也有很多解决方案..你可以在这里阅读更多：http://softwareas.com/cross-domain-communication-with-iframes
回答by Jhong
var fra = document.getElementById('frameId');
// following will work on same domain (or subdomain with document.domain set) only
var fraContent = fra.contentDocument || fra.contentWindow.document;
myLinkHref = fraContent.getElementById('myLinkId').href;
If this is cross-domain, then you will need to have access to add script to the child frame. If not, it can't be done without a server-side proxy.
如果这是跨域的，那么您将需要有权将脚本添加到子框架。如果没有，则没有服务器端代理就无法完成。
回答by user3682349
it is easy:
这很容易：
- you should use %26 instead of & to send to iframe
- 您应该使用 %26 而不是 & 发送到 iframe
for instance:
Link: 2.asp?ppp=/Payam.asp?sid=1%26PID=1&sa=12313in Code: when i requset.queryString("ppp")in the parent it shows:
/Payam.asp?sid=1&PID=1
例如：
链接：2.asp?ppp=/Payam.asp?sid=1%26PID=1&sa=12313在代码中：当我requset.queryString("ppp")在父级中时，它显示：
/Payam.asp?sid=1&PID=1
you can use this as source of your iframe , it has two parameter
您可以将其用作 iframe 的来源，它有两个参数
<IFRAME name="My" src='<%=ppp %>'></IFRAME>
