private void Form1_Load(object sender, EventArgs e)

        {

            using (SqlConnection conn = new SqlConnection("Server=127.0.0.1;Initial Catalog=StuMgWeb;User Id=sa;Password=000000;"))

            {

                conn.Open();

                using (SqlDataAdapter adpt = new SqlDataAdapter("select * from T_Student", conn))

                {

                    DataSet ds = new DataSet();

                    adpt.Fill(ds);

                    string reportPath = Application.StartupPath + @"\CrystalReport1.rpt";

                    DataTable dt = ds.Tables[0];

                    //MessageBox.Show(dt.Rows.Count.ToString());

                    ReportDocument rd = new ReportDocument();

                    rd.Load(reportPath);

                    ////List<T_Student> list = new List<T_Student>(dt.Rows.Count);

                    T_Student[] stus = new T_Student[dt.Rows.Count];

                    for (int i = 0; i < dt.Rows.Count; i++)

                    {

                        T_Student stu = new T_Student();

                        stu.Name = (string)dt.Rows[i]["Name"];

                        stu.Birthday = dt.Rows[i]["Birthday"].ToString();

                        stus[i] = stu;

                    }



               &