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http://www.jb51.net/article/15780.htm

http://www.jb51.net/article/48936.htm

http://bestchenwu.iteye.com/blog/1231956

 

在iframe外添加此js，以下两个都可以

------------1----------------------------

function iFrameHeight() {

var ifm = document.getElementById("cateFrame");

var subWeb = document.frames ? document.frames["cateFrame"].document : ifm.contentDocument;

if (ifm != null && subWeb != null) {

ifm.height = subWeb.body.scrollHeight;

}

}

 

-----------2-----------------------

function SetWinHeight(obj) {

var win = obj;

if (document.getElementById) {

if (win && !window.opera) {

if (win.contentDocument && win.contentDocument.body.offsetHeight)

win.height = win.contentDocument.body.offsetHeight;

else if (win.Document && win.Document.body.scrollHeight)

win.height = win.Document.body.scrollHeight;

}

}

}

------iframe做些修改--------

onload 方法，可以写iFrameHeight()也可以写Javascript:SetWinHeight(this)

<iframe id="cateFrame" name="cateFrame" width="100%" frameborder="0" scrolling="no"

marginwidth="0" marginheight="0" src="welcome.aspx" οnlοad="iFrameHeight()">

<%-- Javascript:SetWinHeight(this)--%>

</iframe>

----------------以下是有ajax的情况下使用的-------------------

在iframe页面内body后添加此js 再次设置一下iframe高度

<script type="text/javascript">

var iframeLoaded = function (iframe) {

if (iframe.src.length > 0) {

if (!iframe.readyState || iframe.readyState == "complete") {

var bHeight = iframe.contentWindow.document.body.scrollHeight;

var dHeight = iframe.contentWindow.document.documentElement.scrollHeight;

var height = Math.max(bHeight, dHeight);

iframe.height = height;

}

}

}

//分页时重新设置 iframe 高度 ； 修改后：iframe.name = iframe.id

var reSetIframeHeight = function () {

//try {

var oIframe = parent.document.getElementById(window.name);

//oIframe.height = 80;

iframeLoaded(oIframe);

// }

// catch (err) {

// try {

// parent.document.getElementById(window.name).height = 500;

// } catch (err2) { }

// }

}

// reSetIframeHeight();

var sendcount = 0;

var completecount = 0;

// 添加ajax全局事件处理。

$(document).ajaxStart(function (a, b, c) {

}).ajaxSend(function (e, xhr, opts) {

sendcount++;

}).ajaxError(function (e, xhr, opts) {

}).ajaxSuccess(function (e, xhr, opts) {

}).ajaxComplete(function (e, xhr, opts) {

completecount++;

reSetIframeHeight();

}).ajaxStop(function () {

});

</script>