iframe 自适应高度

Js部分

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;
        }
    }
}

调用(注意onload方法)

<iframe onload="SetWinHeight(this)" height="1050" frameborder="0" src="main.aspx" width="100%"></iframe>