1. 注册js函数
String scriptString = "<script language=JavaScript>function doClick(){";
scriptString += "for(var index=0;index<myArray.length;index++)";
scriptString += "alert(myArray[index]);}<";
scriptString += "/" + "script>";
ClientScript.RegisterStartupScript(typeof(WebForm2) ......
HTML代码：
<script language="javascript" event="onclick" for="ImageButton1">
return confirm('确定要保存变更吗？');//返回false时不执行ImageButton1_Click方法，返回ture时执行ImageButton1_Click方法
</script>
<asp:ImageButton ID="ImageButton1" runat="server" ImageAlig ......
