using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;public partial class Default5 : System.Web.UI.Page{ static int count = 0; protected void Page_Load(object sender, EventArgs e) { Response.Write(count + "Page_Load "); count++; } protected override void OnPreInit(EventArgs e) { base.OnPreInit(e); Response.Write(count + "OnPreInit "); count++; } protected override void OnInit(EventArgs e) { base.OnInit(e); Response.Write(count + "OnInit "); count++; } protected override void OnLoad(EventArgs e) { base.OnLoad(e); Response.Write(count + "OnLoad "); count++; } protected override void OnPreLoad(EventArgs e) { base.OnPreLoad(e); Response.Write(count + "OnPreLoad "); count++; } protected override void OnLoadComplete(EventArgs e) { base.OnLoadComplete(e); Response.Write(count + "OnLoadComplete "); count++; } protected override void OnInitComplete(EventArgs e) { base.OnInitComplete(e); Response.Write(count + "OnInitComplete "); count++; } protected override void OnUnload(EventArgs e) { base.OnUnload(e); } protected override void OnDataBinding(EventArgs e) { base.OnDataBinding(e); Response.Write(count + "OnDataBinding "); count++; } protected override void OnPreRender(EventArgs e) { base.OnPreRender(e); Response.Write(count + "OnPreRender "); count++; } protected void btnGraphics_Click(object sender, EventArgs e) { //Bitmap bmp = new Bitmap(10, 10); //Graphics g = Graphics.FromImage(bmp); Response.Write(count + "btnGraphics_Click "); count++; }}
结果为：
0OnPreInit
1OnInit 2OnInitComplete 3OnPreLoad 4Page_Load 5OnLoad 6OnLoadComplete 7OnPreRender
*session失效或者超时的跳转（站长后台）
判断页面（每个页面调用）
protected override void OnPreInit(EventArgs e){ new Users().GetUserInfoCookie(out _mywebhostid, out _myuserid); if (_myuserid == string.Empty || _mywebhostid == 0) { Response.Redirect("~/login.aspx?reurl=" + HttpUtility.UrlEncode(Request.Url.AbsoluteUri)); } else { new Users().GetUserInfoCookie(out _mywebhostid, out _myuserid); } base.OnPreInit(e);}
登录页面
string strIp = Request.UserHostAddress; string strSuccessUrl = Request.QueryString["reurl"] == null ? "~/index.aspx" : HttpUtility.UrlDecode(Request.QueryString["reurl"].ToString()); Users u = new Users(); string loginMsg = u.LoginMsg(strUserId, strPassword, Request.UserHostAddress); u.LoginMsg2(strUserId, Request.UserHostAddress, Request.UserAgent, 1); // 登录跳转到成功页面 if (loginMsg == string.Empty) { LoginLog(); Response.Redirect(strSuccessUrl); }