DataTable如何实现排序

代码如下，我把dt加了一行之后再进行排序，加的那一行始终在最后要怎么处理才行？

C# code

            cbxItem.DataSource = null;            DataRow dr = dt.NewRow();            dr[0] = "!!! ";            dt.Rows.Add(dr);            dt.AsDataView().Sort = "item ASC";            dt.AcceptChanges();                        cbxItem.DataSource = dt;            cbxItem.ValueMember = "item";            cbxItem.DisplayMember = "item";

[解决办法]
DataView dView = dt.DefaultView;
dView.Sort = "item ASC";
dt = dView.ToTable();