onperInit_onLoadComplete

protected DateTime dt;
        protected void Page_Load(object sender, EventArgs e)
        {
           
        }
        protected override void OnPreInit(EventArgs e)
        {
            dt = DateTime.Now;
            base.OnPreInit(e);
        }

        protected override void OnLoadComplete(EventArgs e)
        {
            base.OnLoadComplete(e);
            TimeSpan ts = DateTime.Now - dt;
            Response.Write("加载页面用时：" + ts.TotalMilliseconds);
        }

 

 

在页面Head部分加入初始时间
引用
<script language=javascript>
var t1 = new Date().getTime();
</script>
在Body中加入
引用
<SCRIPT LANGUAGE="JavaScript">
window.onload = function()
{
document.getElementById("TimeShow").innerHTML = "加载本页耗时 "+ (new Date().getTime()-t1) +" 毫秒";
}
</SCRIPT>
在需要显示的地方插入一个ID为TimeShow的标签即可
引用
<div id="TimeShow"></div>