Save quiz Question and Answer in Database in ASP.Net

@kalpesh

private void GetCurrentQuestion(int questionId, DataTable dtQuestions)
    {
        if (QuestionId <= dtQuestions.Rows.Count)
        {
            lblQuestion.Text = dtQuestions.Rows[questionId - 1]["QuestionDescription"].ToString();
            DataTable dtOptions = PopulateOptions(questionId);
            List<ListItem> options = new List<ListItem>();
            for (int i = 0; i < dtOptions.Rows.Count; i++)
            {
                options.AddRange(new ListItem[] { new ListItem(dtOptions.Rows[i][1].ToString(), i.ToString()) });
            }
            rbtnOptions.Items.Clear();
            rbtnOptions.Items.AddRange(options.ToArray());
            rbtnOptions.DataBind();
        }
        else
        {
            dvQuestion.Visible = false;
            dvResult.Visible = true;
            using (SqlConnection con = new SqlConnection(ConString))
            {
                using (SqlCommand cmd = new SqlCommand("insert INTO resulttable", con))
                {
                    //i'm struck here
                }

                lblResult.Text = string.Format("You Scored {0}/{1}", Score, QuestionId - 1);
            }
        }
    }