访问iframe中的窗体

I'm trying to get access to a form and its elements. The form is within an iframe and the javascript code that is accessing the form is within the main document.

我正在尝试访问一个表单及其元素。表单在iframe中，访问表单的javascript代码在主文档中。

I'm not sure what else I should put into the question, so please let me know if I need to add something else.

我不知道我还应该在这个问题上放些什么，所以如果我需要补充点什么，请告诉我。

(form and main page are in the same domain)

(表格和主页在同一域名)

Thanks

谢谢

2 个解决方案

#1

var ifr = document.getElementById( yourIframeId );
var ifrDoc = ifr.contentDocument || ifr.contentWindow.document;
var theForm = ifrDoc.getElementById( yourFormId );

Or you could have some code in the frame that sets a variable in parent to the form, but I wouldn't trust that method.

或者你可以在框架中使用一些代码将父变量设置为窗体，但我不相信这个方法。

#2

If your iframe has a name attribute, that can be used as a window name. If the frame name is "myframe":

如果您的iframe有一个name属性，可以将其用作窗口名。如果帧名为“myframe”:

myframe.document.getElementById("myform") // gives you the form element

#1

var ifr = document.getElementById( yourIframeId );
var ifrDoc = ifr.contentDocument || ifr.contentWindow.document;
var theForm = ifrDoc.getElementById( yourFormId );