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Categories / ASP.Net Tutorial / Page Lifecycle
 

Track Your Viewstate

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs"      Inherits="Default" Theme="Core35-Basic" %> <!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>Track Your Viewstate</title> </head> <body>     <form id="form1" runat="server">     <div id="pageContent">         <asp:Button ID="Button1" runat="server" Text="Post back..." OnClick="Button1_Click" />         <br />     </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.HtmlControls; public partial class Default : System.Web.UI.Page {   protected void Page_PreInit(object sender, EventArgs e)   {     this.TraceEnabled = true;   }     protected void Page_Init(object sender, EventArgs e)   {     if (!IsPostBack)     {       this.ViewState["MyData"] = "Hello, world";     }     Trace.Warn("[MyData] now contains", (string) ViewState["MyData"]);   }        protected void Page_Load(object sender, EventArgs e)   {     Trace.Warn("[MyData] now contains", (string)ViewState["MyData"]);   } }