Session State In ASP.NET Web Forms | ASP.NET Sessions | State Management

 <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="Session_State_Practice.WebForm1" %>


<!DOCTYPE html>


<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

    <title></title>

    <style type="text/css">

        .auto-style1 {

            width:100%;

        }

        .auto-style2 {

            width: 123px;

        }

    </style>

</head>

<body>

    <form id="form1" runat="server">

        <div>

            <table cellpadding="3" cellspacing="4" class="auto-style1">

                <tr>

                    <td class="auto-style2">USERNAME</td>

                    <td>

                        <asp:TextBox ID="UserTextBox" runat="server"></asp:TextBox>

                    </td>

                </tr>

                <tr>

                    <td class="auto-style2">&nbsp;</td>

                    <td>

                        <asp:Button ID="SubmitButton" runat="server" Text="SUBMIT" OnClick="SubmitButton_Click"/>

                    </td>

                </tr>

            </table>

        </div>

    </form>

</body>

</html>

Above File is Session_State_Practice\WebForm1.aspx















using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace Session_State_Practice
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void SubmitButton_Click(object sender, EventArgs e)
        {
            //Below is First way for creating session variable
            //Session.Add("user",UserTextBox.Text);

            //Below is Second way for creating session variable
            //Below Second way is most common way for creating session variable
            Session["user"] = UserTextBox.Text;
            Response.Redirect("WebForm2.aspx");
        }
    }
}
Above File is Session_State_Practice\WebForm1.aspx.cs

















<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm2.aspx.cs" Inherits="Session_State_Practice.WebForm2" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            <asp:LinkButton ID="LinkButton1" runat="server" PostBackUrl="~/WebForm3.aspx">GO TO PAGE 3</asp:LinkButton>
        </div>
    </form>
</body>
</html>
Above File is Session_State_Practice\WebForm2.aspx















using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace Session_State_Practice
{
    public partial class WebForm2 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (Session["user"] != null)
            {
                //Generally we use "Response.Write()" when we want to display message at top left side in page
                Response.Write("Welcome " + Session["user"].ToString());
            }
            else
            {
                Response.Redirect("WebForm1.aspx");
            }
        }
    }
}
Above File is Session_State_Practice\WebForm2.aspx.cs
















<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm3.aspx.cs" Inherits="Session_State_Practice.WebForm3" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            <asp:Button ID="LogoutButton" runat="server" Text="LOGOUT" OnClick="LogoutButton_Click"/>
        </div>
    </form>
</body>
</html>
Above File is Session_State_Practice\WebForm3.aspx















using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace Session_State_Practice
{
    public partial class WebForm3 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (Session["user"] != null)
            {
                Response.Write("Welcome " + Session["user"].ToString());
            }
            else
            {
                Response.Redirect("WebForm1.aspx");
            }
        }

        protected void LogoutButton_Click(object sender, EventArgs e)
        {
            if (Session["user"] != null)
            {
                Session["user"] = null;
                Response.Redirect("WebForm1.aspx");
            }
        }
    }
}
Above File is Session_State_Practice\WebForm3.aspx.cs





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