如何从Iframe中的选择框中获取选定的值,并将其显示在外部? [英] How do I get the selected value from a select box, from inside an Iframe, and display it on the outside?
问题描述
我在HTML中有这个选择框,并且它所在的页面正通过iframe加载到另一个页面(都在我的网站上)。我希望能够从选择框(在iframe中)获取选定的值,并将其显示在外部。以下是我拼凑在一起的一些代码,但我不知道我是否正确地做了这件事:
< script> ;
$('#iframe')。contents()。find('#cds')。change(function(){
var selectVal = $(this).val();
url ='https://twitter.com/intent/tweet?button_hashtag=stream&text=Just enjoy'+ selectVal +'on';
$(twitter)。attr(id,url) ;
});
< / script>
有什么建议?
澄清
- 我的
< select>
元素位于iframe
- 我想在
iframe之外显示选定的值
-
iframe的来源
与加载它的页面位于同一个域中
我不确定你的HTML是什么样的,但是
<$ p $ p>
$(twitter)。attr(id,url);
应该是:
$(。twitter)。attr(id,url);
更新:尝试此代码...您需要检测iframe是否已加载( demo )
$(function(){
//定义这里是因为我们改变了ID
var $ twitter = $('# ('load',function(){
$(this).contents()。);
//绑定到iframe中选择
$('#iframe')。 find('#cds')。change(function(){
var selectVal = $(this).val();
url ='https://twitter.com/intent/tweet?button_hashtag = stream& text =仅仅享受'+ selectVal +'on';
$ twitter.attr(id,url).text(url);
})。change(); //触发更改为初始值
});
});
另外,由于我们正在更改Twitter的ID,因此我们需要保存该jQuery对象。 / p>
I have this select box in HTML, and the page it's on is being loaded into another page (both on my website) through an iframe. I want to be able to get the selected value from the select box (inside the iframe), and display it on the outside. Here's some code I've pieced together, but I don't know if i'm doing it right:
<script>
$('#iframe').contents().find('#cds').change(function() {
var selectVal = $(this).val();
url = 'https://twitter.com/intent/tweet?button_hashtag=stream&text=Just enjoying ' + selectVal + ' on';
$("twitter").attr("id", url);
});
</script>
Any advice?
To Clarify
- My
<select>
element is in theiframe
- I want to display the selected value outside the
iframe
- The source of the
iframe
is on the same domain as the page into which it is loaded
I'm not sure what your HTML looks like, but
$("twitter").attr("id", url);
should probably be:
$(".twitter").attr("id", url);
Update: Try this code... you need to detect if the iframe has loaded as well (demo)
$(function () {
// define this here because we're changing the ID
var $twitter = $('#twitter');
// bind to select inside iframe
$('#iframe').on('load', function () {
$(this).contents().find('#cds').change(function () {
var selectVal = $(this).val();
url = 'https://twitter.com/intent/tweet?button_hashtag=stream&text=Just enjoying ' + selectVal + ' on';
$twitter.attr("id", url).text(url);
}).change(); // trigger change to get initial value
});
});
Also, since we're changing the ID of twitter, we need to save that jQuery object.
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