ASP.NET Session state provides a place to store values that will persist across page requests. Values stored in Session are stored on the server and will remain in memory until they are explicitly removed or until the Session expires.
Creating Session
Session["Name"] = txtName.Text;Read Value from Session
StudentName.Text = Session["Name"].ToString();
Example
Here is the example which shows you to Create the Session and Store the data into it and also retrieve data from Session.
1. Create the Default.aspx file and the design the following UI as below.
Add the following code on the Click Event Handler of Button (“Save info in Session”).
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_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
// This will store the values in Session
Session["ID"] = txtID.Text;
Session["Name"] = txtName.Text;
Session["Course"] = cbCourse.Text;
Response.Redirect("RetriveInforamtiom.aspx");
}
}
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2. Now, add a new page and name it “RetriveInforamtiom.aspx” and design the following UI.
Now, on the Page_Load () event of “RetriveInforamtiom.aspx”, write the following codes
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class RetriveInforamtiom : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//Retriving stored data from Session
StudentID.Text = Session["ID"].ToString();
StudentName.Text = Session["Name"].ToString();
StudentCourse.Text = Session["Course"].ToString();
}
}
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3. Now, focus to Default.aspx page and Run the Website. Provide the data for required field and Click on “Save info in Session” Button. It will store the data in session and further it will be redirected to “RetriveInforamtiom.aspx” page to retrieve and show data from Session.
Here is the output of the above program.
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