为什么页面一加上Ajax就出错
查看源文件时出来的
<script type="text/javascript">
//<![CDATA[
Sys.Application.initialize();
Sys.Application.add_init(function() {
$create(Sys.UI._UpdateProgress, {"associatedUpdatePanelId":null,"displayAfter":500,"dynamicLayout":true}, null, null, $get("ctl00_ctl00_ContentPlaceHolder1_ContentPlaceHolderseller_UpdateProgress1"));
});
//]]>
</script>
说Sys未定义