Page life cycle events : Page Events « Page Lifecycle « ASP.NET Tutorial






<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="PageFlow" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Page Flow</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Label id="lblInfo" runat="server" EnableViewState="False">
         </asp:Label>
            <asp:Button id="Button1" runat="server"
              Text="Button" OnClick="Button1_Click"></asp:Button>
    </div>
    </form>
</body>
</html>

File: Default.aspx.cs

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class PageFlow : System.Web.UI.Page
{
  private void Page_Load(object sender, System.EventArgs e)
  {
    lblInfo.Text += "Page.Load event handled.<br/>";
    if (Page.IsPostBack)
    {
      lblInfo.Text += "<b>second time</b><br/>";
    }
  }

  private void Page_Init(object sender, System.EventArgs e)
  {
    lblInfo.Text += "Page.Init event handled.<br/>";
  }

  protected void Button1_Click(object sender, System.EventArgs e)
  {
    lblInfo.Text += "Button1.Click event handled.<br/>";
  }

  private void Page_PreRender(object sender, System.EventArgs e)
  {
    lblInfo.Text += "Page.PreRender event handled.<br/>";
  }

  private void Page_Unload(object sender, System.EventArgs e)
  {
    lblInfo.Text += "Page.Unload event handled.<br/>";
  }

}








5.3.Page Events
5.3.1.Here is the sequence of events that are raised whenever you request a page:
5.3.2.Error event example
5.3.3.Page events firing sequence (VB.net)
5.3.4.Page life cycle events
5.3.5.Page flow tracing
5.3.6.Unload event example