IE8的scrollHeight属性导致问题
我有一个 DIV 元素，我可以在其中添加和删除内容，并且根据我的阅读，scrollHeight 属性是 DIV 内容高度的度量。我有一部分 javascript 代码，根据scrollHeight 属性将 DIV 设置为特定高度：
if (div.scrollHeight <= 25)
{
div.style.height = "25px";
}
else if (div.scrollHeight > 25)
{
div.style.height = "50px";
}
该代码适用于 IE6 和 IE7，但是当它在 IE8 中运行时，一旦样式高度设置为 50px 的值，即使我删除了 DIV 的一些内容以使其适合 25px 高度，scrollHeight 属性仍然返回 50px 的值。那么问题就出在IE8下DIV展开后尺寸并没有收缩到更小的尺寸。我可以寻求帮助来解决这个问题吗？
I have a DIV element where I can add and remove contents from it, and based on my readings, the scrollHeight property is a measure of the DIV's content height. I have a portion of javascript code that sets the DIV to a specific height based on the scrollHeight property:
if (div.scrollHeight <= 25)
{
div.style.height = "25px";
}
else if (div.scrollHeight > 25)
{
div.style.height = "50px";
}
The code works with IE6 and IE7, but when it is run in IE8, once the style height is set to a value of 50px, the scrollHeight property keeps returning a value of 50px even though I removed some of the DIV's content to make it fit a 25px height. So the problem is that the size of the DIV does not contract to the smaller size after its expansion under IE8. May I get help with fixing this up?
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也许某些元素没有从 IE 的节点列表中完全删除？
尝试将它们设置为
null，然后重新加载内容。Maybe some of the elements are not totally removed from IE's nodelist?
Try to set them as
nulland then reload the content.