public void BinGuanDataBind(object sender, EventArgs e)
    {
        ///此方法是从一个datatable中select出一个新的datatable
        DataTable dtBingGuans = MyBingGuan.List();

        DataRow[] dtRows = dtBingGuans.Select("B_SuoShuDingFangXiTongSN=" + Texx_DingFangXiTong.Text);

        DataTable NewDtBingGuans = dtBingGuans.Clone();

        NewDtBingGuans.Clear();
        foreach (DataRow item in dtRows)
        {
            NewDtBingGuans.Rows.Add(item.ItemArray);
        }

        this.Texx_BingGuan.DataSource     = NewDtBingGuans;
        this.Texx_BingGuan.DataTextField  = "B_Name";
        this.Texx_BingGuan.DataValueField = "B_SN";
        this.Texx_BingGuan.DataBind();
    }
 protected void Page_Load(object sender, EventArgs e)
 {
     this.Griw_List.DataSource = MyBingGuan.List();
     this.Griw_List.DataBind();
 }