ASP.NET page PreInit event is first event of asp.net page life cycle and fired before page initialised.
Syntax
protected void Page_PreInit(object sender, EventArgs e)
{
//Code will come here.
}
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs"
Inherits="_Default" %>
<!DOCTYPE html">
<html xmlns="https://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="lblTitle" runat="server" Text="ASP.NET Page Life Cycle"></asp:Label><br />
<asp:label ID="lblDisplayPageEventsSteps" runat="server" text="Label"></asp:label>
</div>
</form>
</body>
</html>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class _Default : System.Web.UI.Page
{
protected void Page_PreInit(object sender, EventArgs e)
{
//This will fire before page initialised and set value to lable.
lblDisplayPageEventsSteps.Text = "This is PreInit Event";
}
}
Above example will produce following output
ASP.NET Page Life Cycle
This is PreInit Event