ArrayList绑定GridView

  //定义一些实体
        public class Entity
        {     
            public Entity(string Names,string Sex)
            {
                this.Names = Names;
                this.Sex = Sex;
            }
            public string Names { get; set; }
            public string Sex { get; set; }
        }
        //定义一些String
        public class SomeStr
        {
            public string Names;
            public string Sex;
            public SomeStr(string Names,string Sex)
            {
                this.Names = Names;
                this.Sex = Sex;
            }
        }
        //ArrayList实体绑定GridView
        private void AL()
        {
            ArrayList ai = new ArrayList();
            ai.Add(new Entity("Dean", "Male"));
            ai.Add(new Entity("Cass", "Male"));
            GridView1.DataSource = ai;
            GridView1.DataBind();
        }
        //ArrayList字符绑定GridView
        private void AlStr()
        {
            ArrayList ai = new ArrayList();
            ai.Add(new SomeStr("Dean", "Male"));


            DataTable dt = new DataTable();
            //手动添加列名
            dt.Columns.Add("Names", System.Type.GetType("System.String"));
            dt.Columns.Add("Sex", System.Type.GetType("System.String"));
            
            //从ArrayList读出每一个枚举
            IEnumerator ie = ai.GetEnumerator();
            while (ie.MoveNext())
            {
                //转换一下类型
                SomeStr sr = (SomeStr)ie.Current;
                DataRow dr = dt.NewRow();
                //给列赋值
                dr["Names"] = sr.Names;
                dr["Sex"] = sr.Sex;
                dt.Rows.Add(dr);
            }
            GridView1.DataSource = dt;
            GridView1.DataBind();

        }