- C# code
<html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title></title> <script src="jquery.js" type="text/javascript"></script> <script type="text/javascript"> $(document).ready(function (){ var iframe = document.getElementById("userArea"); try { var bHeight = iframe.contentWindow.document.body.scrollHeight; var dHeight = iframe.contentWindow.document.documentElement.scrollHeight; var height = Math.max(bHeight, dHeight); iframe.height = height; } catch (ex) { } }); </script></head><body> <form id="form1" runat="server"> <div> <iframe id="userArea" name="userArea" frameborder="0" style="width:100%;" src="http://www.baidu.com" ></iframe> </div> </form></body></html>我这样写，怎么没有用，高度还是一点点，我想得是，随网页的高度变化而变化！
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http://www.ccvita.com/376.html
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<iframe ... marginwidth=0 marginheight=0 hspace=0 vspace=0 frameborder=0>
在嵌入的页面加CSS
html,body{margin:0px; padding:0px}
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<iframe frameborder="0" id="Right" name="Right" scrolling="yes" src="Main.aspx" style="width:100%;height:100%;" > </iframe>
<script>
function setAutoHeight(iframeElement, dheight) {
iframeElement.style.height =dheight ;
}
setAutoHeight(document.getElementById("Right"), window.document.documentElement.clientHeight +"px");
</script>
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document.documentElement.clientHeight
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http://www.jb51.net/article/15780.htm
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iframe.style.height = height+"px";