How to store data in table in database using datatable in asp.net

using (SqlConnection con = new SqlConnection(strConnect))
                {
        con.Open();
         using (SqlBulkCopy BCtest = new SqlBulkCopy(con))
                    {
                    BCtest.DestinationTableName = "Test";
                    DataTable dt = new DataTable();
                    dt.Columns.Add("Id");
                    dt.Columns.Add("Data");
                    dt.Rows.Add("ID 1", "DATA 1");
                    dt.Rows.Add("ID 2", "DATA 2");
                    dt.Rows.Add("ID 3", "DATA 3");
                    dt.Rows.Add("ID 4", "DATA 4");
                    bulk.WriteToServer(dt);
                    }
                }