我的连接数据库代码是：
SqlConnection conn = new SqlConnection(@"Data Source=SAMSUNG-PC;Initial Catalog=jsflxt;Integrated Security=True");
            try
            {
                conn.Open();
            }
            catch (Exception e)
            {

            }
            return conn;
        }
        public void data()
        {
            SqlConnection conn = OpenCon();
            SqlCommand cmd = new SqlCommand();
             = "select * from jsxx";
            cmd.Connection = conn;
            SqlDataAdapter s = new SqlDataAdapter(cmd);
            DataSet ds = new DataSet();
            s.Fill(ds);
            this.dataGridView1.DataSource = ds.Tables[0];
        }
求写代码！