.net DataTable 正確排序姿勢

關於dataTable中根據列排序正確姿勢做個隨筆，方便查閱

 System.Data.DataTable dt = new System.Data.DataTable();
            dt.Columns.Add("date", typeof(System.String));
            System.Data.DataRow dr = dt.NewRow();
            dr["date"] = "2016-09";
            System.Data.DataRow dr1 = dt.NewRow();
            dr1["date"] = "2015-09";
            System.Data.DataRow dr2 = dt.NewRow();
            dr2["date"] = "2014-09";
            System.Data.DataRow dr3 = dt.NewRow();
            dr3["date"] = "2016-06";
            System.Data.DataRow dr4 = dt.NewRow();
            dr4["date"] = "2013-10";
            dt.Rows.Add(dr);
            dt.Rows.Add(dr1);
            dt.Rows.Add(dr2);
            dt.Rows.Add(dr3);
            dt.Rows.Add(dr4);
            System.Data.DataView dv = dt.DefaultView;
            dv.Sort = "date";
            System.Data.DataTable dt1 = dv.ToTable();

            foreach (System.Data.DataRow varDr in dt1.Rows)
            {
                Console.WriteLine(varDr["date"].ToString());
            }