asp.net 手動生成一個DataTable

 DataTable dt = new DataTable();
        DataRow dr;


        dt.Columns.Add(new DataColumn("Del No", typeof(string)));
        dt.Columns.Add(new DataColumn("WMS數量", typeof(int)));
        dt.Columns.Add(new DataColumn("ERP數量", typeof(int)));
        dt.Columns.Add(new DataColumn("差異數量", typeof(int)));
                        dr = dt.NewRow();
                        dr[0] = GridView1.Rows[i].Cells[0].Text.Trim(); //賦值
                        dr[1] = wmsqty;
                        dr[2] = erpqty;
                        dr[3] = gap;
			dt.Rows.Add(dr);