Create Pie Chart through Database in ASP.Net

I have a database created taking some survey values and i want to creat a pie chart based on the survey through asp.net. please help me.

SqlConnection con;
        SqlDataAdapter da;
        DataTable dt;
        DataSet ds = new DataSet();
        
        protected void Page_Load(object sender, EventArgs e)
        {
            if(!IsPostBack)
            {
                con=new SqlConnection("server=DELL-PC;database=mproject;uid=sa;pwd=pass");

                Chart1.Visible = true;
                string qry1 = "select * from chart";
                da=new SqlDataAdapter(qry1,con);
                da.Fill(ds);
                string[] x = new string[ds.Tables[0].Rows.Count];
                string[] y = new string[ds.Tables[0].Rows.Count];

                for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
                {
                    x[i] = ds.Tables[0].Rows[i][0].ToString();
                    y[i]= ds.Tables[0].Rows[i][1].ToString();

                }
                Chart1.Series[0].Points.DataBindXY(x, y);
                Chart1.Legends[0].Enabled = true;

            }


        }