jQuery问题与更改事件和IE8 [英] jQuery problem with change event and IE8
问题描述
在jQuery 1.4.2中有一个错误,使得在使用DOM事件和jQuery事件时,select-element的更改事件会被触发两次,而这仅在IE7 / 8上。
以下是测试代码:
There is a bug in jQuery 1.4.2 that makes change event on select-element getting fired twice when using both DOM-event and a jQuery event, and this only on IE7/8. Here is the test code:
<html>
<head>
<script src="http://code.jquery.com/jquery-1.4.2.js" type="text/javascript"></script>
<script type="text/javascript">
jQuery(document).ready(function() {
jQuery(".myDropDown").change(function() {
});
});
</script>
</head>
<body>
<select class="myDropDown" onchange="alert('hello');">
<option>1</option>
<option>2</option>
<option>3</option>
<option>4</option>
</select>
</body>
</html>
更新:
问题的另一个视图,实际上是我们应用程序中真正的问题。在一个甚至没有使用DOM事件触摸select元素的选择器上绑定一个实时变化事件也会导致双重触发。
Update: Another view of the problem, actually this is the real problem we have with our application. Binding a live change event on a selector that isn't even touching the select-element with DOM-event also causes double firing.
<html>
<head>
<script src="http://code.jquery.com/jquery-1.4.2.js" type="text/javascript"></script>
<script type="text/javascript">
jQuery(document).ready(function() {
jQuery(".someSelectThatDoesNotExist").live("change", function() {
});
});
</script>
</head>
<body>
<select class="myDropDown" onchange="alert('hello');">
<option>1</option>
<option>2</option>
<option>3</option>
<option>4</option>
</select>
</body>
</html>
实际错误的票证: http://dev.jquery.com/ticket/6593
这给我们带来了很多麻烦我们的应用程序导致我们使用与jQuery混合的ASP.NET事件,并且一旦在任何元素上连接了一个更改事件,每个选择(下拉列表)就会获得这种双重触发问题。
This causes alot of trouble for us in our application cause we use both ASP.NET-events mixed with jQuery and once you hook up a change event on any element every select (dropdown) gets this double firing problem.
在这个问题解决之前,有没有人知道这个问题吗?
Is there anyone who knows a way around this in the meantime until this issue is fixed?
推荐答案
我讨厌提出这个问题从死了,但jquery最终修复了1.7版本的最新版本。
I hate to raise this question from the dead but jquery finally fixed this bug in version 1.7 which was recently released.
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