string connString = @"server = .\sqlexpress; integrated security = true; database = Competitions";
            string qry = @"select * from tblParticipants where Age = 18 and Code < 150";
            string upd = @"update tblParticipants set PartFamily = @PartFamily where Code = @Code";
            SqlConnection conn = new SqlConnection(connString);

            try
            {
                SqlDataAdapter da = new SqlDataAdapter();
                da.SelectCommand = new SqlCommand(qry, conn);

                DataSet ds = new DataSet();
                da.Fill(ds, "tblParticipants");
                ds.WriteXml("../../tblParticipants.xml");

                DataTable dt = ds.Tables["tblParticipants"];

                foreach (DataRow row in dt.Rows)
                {
                    Console.WriteLine("│{0}│{1}│{2}│{3}│",
                       row["PartFamily"].ToString().PadRight(20),
                       row["Team"].ToString().PadRight(15),
                       row["Age"].ToString().PadRight(3),
                       row["Weight"].ToString().PadRight(3));
                }

            SqlConnection conn = new SqlConnection(@"server = .\sqlexpress; integrated security = true; database = SportsCompetitions");
            SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM tblBlank", conn);
            DataSet ds = new DataSet();

        private void mnuMainList_Click(object sender, EventArgs e)
        {
            SqlConnection conn = new SqlConnection(@"server = .\sqlexpress; integrated security = true; database = SportsCompetitions");
            SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM tblBlank", conn);
            DataSet ds = new DataSet();
            ds.Clear();
            da.Fill(ds, "myTable");
            dataGridView1.DataSource = ds.Tables["myTable"];

        }