I am creating online quiz system in ASP.NET after taking quiz how can I show result form?

 private static int  question_id=0;
 protected void Page_Load(object sender, EventArgs e)
        {
            
            GetData();
           
        }

<pre> private DataTable GetData()
        {
            DataTable dt = new DataTable();
            SqlConnection connection = new SqlConnection("Data Source=.;Initial Catalog=Quiz_system;Integrated Security=True");
            try
            {
                connection.Open();
                SqlCommand sqlCmd = new SqlCommand("Select question,op1,op2,op3,op4 From tbl_question_bank  where course_name='" + Session["coursename"] + "'" , connection);
                SqlDataAdapter sqlDa = new SqlDataAdapter(sqlCmd);
                sqlDa.Fill(dt);
            }
            catch (System.Data.SqlClient.SqlException ex)
            {
                string msg = "Fetch Error:";
                msg += ex.Message;
                throw new Exception(msg);
            }
            finally
            {
                connection.Close();
            }
            return dt;
        }

<pre> protected void btninsert_Click(object sender, EventArgs e)
        {
            DataTable dt = GetData();
            Session["dt"] = dt;
            if(Session["dt"]!=null && question_id < dt.Rows.Count)
            {
                lblquestion.Text = dt.Rows[question_id]["question"].ToString();// questions.Add(red[0]);
                rdb1.Text = dt.Rows[question_id]["op1"].ToString();// opt1.Add(red[1]);
                rdb2.Text = dt.Rows[question_id]["op2"].ToString();// opt2.Add(red[2]);
                rdb3.Text = dt.Rows[question_id]["op3"].ToString(); //opt3.Add(red[3]);
                rdb4.Text = dt.Rows[question_id]["op4"].ToString(); //opt4.Add(red[4]);
                
            }
          question_id++;
            //else
            //{
            //    Response.Write("quizz end");
            //}
        }

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