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IE在DOM操作有表单控件时的bug_表单特效

WBOY原创: 2016-05-16 18:57:34971浏览

bug描述
当象下例中那样操作了表单radio/checkbox的DOM结构时（或者直接影响了他们的结构时）选中的checkbox/radio将会自动恢复到默认状态，有如点了reset按钮一样。

<title>Rank's HTML document</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta http-equiv="Pragma" content="no-cache"> 
<meta http-equiv="Cache-Control" content="no-cache"> 
<meta http-equiv="Expires" content="0">
<meta http-equiv="ImageToolbar" content="no">
<meta http-equiv="Creator.name" content="Rank, BlueDestiny, never-online">
<style type="text/css" title="default" media="screen">
/*<![CDATA[*/
body { font-size:80%; line-height:1.5; }
body, button { font-family:arial; }
button { padding:0 0.3em 0 0.3em; }
h1, h3 { margin:0; padding:0; }
h1 { font-size:2.3em; }
h3 { font-size:1.3em; }
form { display:inline-block; }
div.link { padding:1em; }
div.content { background:#ffc; padding:1em; border:1px solid #222; margin:1em 0 1em; }
#rdoWrapper { }
#hd { text-align:center; }
/*]]>*/
</style>

<div id="hd">
<h1> IE form control bug </h1>
<div class="link">from: <a href="http://www.never-online.net/blog"><em>never-online weblog</em></a>
</div>
</div>
<div id="rdoWrapper" class="content">
<h3> 1. Select radio to checked </h3>
<form method="post">
<input type="radio" name="rdo" id="rdo-1" value="rdo-1" checked><label for="rdo-1">radio1</label>
<input type="radio" name="rdo" id="rdo-2" value="rdo-2"><label for="rdo-2">radio2</label>
<input type="radio" name="rdo" id="rdo-3" value="rdo-3"><label for="rdo-3">radio3</label>
<input type="radio" name="rdo" id="rdo-4" value="rdo-4"><label for="rdo-4">radio4</label>
</form>
</div>
<div class="content">
<h3> 2. Click button to change dom structure </h3>
<p class="p"><button type="button" onclick="handleChangeDom()">test</button></p>
</div>
<script type="text/javascript">//<![CDATA[
function getRadioValue(ctlName) {
var ctls = document.getElementsByName(ctlName);
var len = ctls.length;
for (var i=0; i<len; i++) {
if (ctls[i].checked) {
return ctls[i].value;
}
}
}
function handleChangeDom() {
alert('before append, you select radio value is "'+getRadioValue('rdo')+'"');
var wrapper = document.getElementById('rdoWrapper');
document.body.appendChild(wrapper);
alert('after append, you select radio value is "'+getRadioValue('rdo')+'"');
}
//]]></script>

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