ASP.NET Page_PreLoad Event

Page PreLoad event will fired first time when page initialization completed in asp.net page life cycle.

Syntax

protected void Page_PreLoad(object sender, EventArgs e)
{
	//Code will come here. 
}

Example PreLoad Event - Default.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" 
Inherits="_Default" %>
<!DOCTYPE html">
<html xmlns="http://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>lt;br />
        <asp:label ID="lblDisplayPageEventsSteps" runat="server" text="Label"></asp:label>
    </div>
    </form>
</body>
</html>

Example PreLoad Event - Default.aspx.cs

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";
    }
	protected void Page_Init(object sender, EventArgs e)
    {
        //This will fire when the page is initialised and set value to lable. 
        lblDisplayPageEventsSteps.Text += lblDisplayPageEventsSteps.Text = "<br/>This is Init Event";
    }
	protected void Page_InitComplete(object sender, EventArgs e)
    {
        //This will fire when page initialization completed and set value to lable. 
        lblDisplayPageEventsSteps.Text += lblDisplayPageEventsSteps.Text = "<br/>This is InitComplete Event";
    }
	protected void Page_PreLoad(object sender, EventArgs e)
    {
        //This will fire before page load and set value to lable. 
        lblDisplayPageEventsSteps.Text += lblDisplayPageEventsSteps.Text = "<br/>This is PreLoad Event";
    }
}

Above example will produce following output

ASP.NET Page Life Cycle
This is PreInit Event
This is Init Event
This is InitComplete Event
This is PreLoad Event

More ASP.NET Page Life Cycle Events

 
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