How to deal with multiple version IE in asp.net development? Conditional_comment

http://en.wikipedia.org/wiki/Conditional_comment

Such as: remove IE8 compatibility button
<!--[if gte IE 7]><meta http-equiv="X-UA-Compatible" content="IE=8"/> <![endif]-->

How to remove IE8 compatibility button in asp.net?

Put following code BEFORE header:
<!--[if gte IE 7]><meta http-equiv="X-UA-Compatible" content="IE=8"/> <![endif]-->

How to make label in asp.net text-wrap

Add a div following to wrap your label:

<div style="overflow-y:auto;overflow-x:auto; word-break:break-all;" runat="server">

How to solve problem: JQuery doesn’t work after postback in asp.net web form?

Put Jquery code into pageLoad method in html view. Such as:
<script type="text/javascript">
function pageLoad() {
$('#TextBox1').datepicker();
}
</script>