.net DataTable 正确排序姿势

关于dataTable中根据列排序正确姿势做个随笔，方便查阅

 1  System.Data.DataTable dt = new System.Data.DataTable();
 2             dt.Columns.Add("date", typeof(System.String));
 3             System.Data.DataRow dr = dt.NewRow();
 4             dr["date"] = "2016-09";
 5             System.Data.DataRow dr1 = dt.NewRow();
 6             dr1["date"] = "2015-09";
 7             System.Data.DataRow dr2 = dt.NewRow();
 8             dr2["date"] = "2014-09";
 9             System.Data.DataRow dr3 = dt.NewRow();
10             dr3["date"] = "2016-06";
11             System.Data.DataRow dr4 = dt.NewRow();
12             dr4["date"] = "2013-10";
13             dt.Rows.Add(dr);
14             dt.Rows.Add(dr1);
15             dt.Rows.Add(dr2);
16             dt.Rows.Add(dr3);
17             dt.Rows.Add(dr4);
18             System.Data.DataView dv = dt.DefaultView;
19             dv.Sort = "date";
20             System.Data.DataTable dt1 = dv.ToTable();
21 
22             foreach (System.Data.DataRow varDr in dt1.Rows)
23             {
24                 Console.WriteLine(varDr["date"].ToString());
25             }