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Detailed explanation of iframe page operation examples

零下一度
零下一度Original
2017-06-30 16:24:531755browse

1) Method to find the parent page element in the iframe:
$('#id', window.parent.document)

2) Call the method defined in the parent page in the iframe and Variable:
parent.method
parent.value

3) Example

1. Parent page

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="IframeDemo._Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" " 
<html xmlns="www.w3.org/1999/xhtml" ><head runat="server">    <title></title>    
<script language="javascript" type="text/javascript" src="jquery-1.5.1.min.js"></script>    
<script language="javascript" type="text/javascript">        var hello = &#39;hello&#39;;        
function getHelloWorld() {            alert(&#39;hello world&#39;);        }    
</script></head><body>    <form id="form1" runat="server">    <div>    
<div id="default" style=" width:200px; height:400px; float:left;">default.aspx</div>    
<iframe id="iframeid" src="IFrame.aspx" style=" width:400px; height:400px; float:left;">
</iframe>    
</div>    </form>
</body></html>

2. Child page

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="IFrame.aspx.cs" Inherits="IframeDemo.IFrame" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" " 
<html xmlns="www.w3.org/1999/xhtml" ><head runat="server">    <title></title>    
<script language="javascript" type="text/javascript" src="jquery-1.5.1.min.js"></script>    
<script language="javascript" type="text/javascript">        $(function() {            
//在iframe中查找父页面元素            alert($(&#39;#default&#39;, window.parent.document).html());            
//在iframe中调用父页面中定义的方法            parent.getHelloWorld();            
//在iframe中调用父页面中定义的变量            alert(parent.hello);        });    
</script></head><body>    <form id="form1" runat="server">    
<div id="iframe">        
IFrame.aspx    </div>    
</form>
</body>
</html>

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