How Can I Save Rating Of Each Product Individually In My Datalist

SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionStringRating"].ConnectionString);
    protected void Page_Load(object sender, EventArgs e)
    {
       
        Labelrate.Text = "0 Users have rated this Product";
        Labelrt.Text = "Average rating for this Product is 0";

        if (!IsPostBack)
        {
            BindRatings();
        }
    }
    protected void Rating1_Changed(object sender, AjaxControlToolkit.RatingEventArgs e)
    {
        con.Open();
        SqlCommand cmd = new SqlCommand("INSERT INTO UserRating(Rating,ProductID) VALUES (@Rating)", con);
        cmd.Parameters.AddWithValue("@Rating", SqlDbType.Int).Value = Rating1.CurrentRating;
        cmd.ExecuteNonQuery();
        con.Close();
        BindRatings();
    }
    public void BindRatings()
    {
        int Total = 0;
        con.Open();
        SqlCommand cmd = new SqlCommand("SELECT Rating FROM UserRating", con);
        SqlDataAdapter da = new SqlDataAdapter(cmd);
        DataTable dt = new DataTable();
        da.Fill(dt);
        if (dt.Rows.Count > 0)
        {
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                Total += Convert.ToInt32(dt.Rows[i][0].ToString());
            }
            int Average = Total / (dt.Rows.Count);
            Rating1.CurrentRating = Average;
            Labelrate.Text = dt.Rows.Count + " " + "Users have rated this Product";
            Labelrt.Text = "Average rating for this Product is" + " " + Convert.ToString(Average);
        }
    }