GridView 动态生成绑定列代码

/// <summary>
    /// 生成Gridview的绑定列
    /// </summary>
    /// <param name="gv"></param>
    private void TreeViewBindMethod(GridView gv)
    {
        //gv.Columns.Clear();
        for (int colNum = gv.Columns.Count - 1; colNum >= 0; colNum--)
        {
            if (gv.Columns[colNum].GetType().FullName.ToString() == "System.Web.UI.WebControls.BoundField")
            {
                gv.Columns.RemoveAt(colNum);
            }
        }
        BoundField fieldStationName = new BoundField();
        fieldStationName.DataField = "STATIONID";
        fieldStationName.HeaderText = "变电站名称";
        fieldStationName.Visible = false;
        gv.Columns.Add(fieldStationName);
        BoundField fieldDeviceName = new BoundField();
        fieldDeviceName.DataField = "devicetypename";
        fieldDeviceName.HeaderText = "设备名称";
        fieldDeviceName.Visible = false;
        gv.Columns.Add(fieldDeviceName);
        BoundField fieldObjName = new BoundField();
        fieldObjName.DataField = "objid";
        fieldObjName.HeaderText = "主设备名称";
        fieldObjName.Visible = false;
        gv.Columns.Add(fieldObjName);
        BoundField fieldDateTime = new BoundField();
        fieldDateTime.DataField = "datetime";
        fieldDateTime.HeaderText = "时间";
        gv.Columns.Add(fieldDateTime);
        if (dtDga != null && dtDga.Rows.Count > 0)
        {
            for (int i = 0; i < dtDga.Rows.Count; i++)
            {
                BoundField field = new BoundField();
                field.DataField = dtDga.Rows[i][1].ToString().Trim();
                field.HeaderText = dtDga.Rows[i][1].ToString().Trim();
                gv.Columns.Add(field);
            }
        }
        //HyperLinkField hlf = new HyperLinkField();
        //hlf.HeaderText = "诊断";
        ////string[] canshu = new string[4] { "stationid", "datetime", "devicetypename", "objid" };
        ////hlf.DataNavigateUrlFields = canshu;
        ////hlf.DataNavigateUrlFormatString = "~/diagnose/DiagnoseGeneral.aspx?stationid={0}&datetime={1}&devicetypename={2}&objid={3}";
        //hlf.DataNavigateUrlFields = new string[] { "stationid" };
        //hlf.DataNavigateUrlFormatString = "~/diagnose/DiagnoseGeneral.aspx?stationid={0}";
        ////hlf.NavigateUrl = "~/diagnose/DiagnoseGeneral.aspx?stationid={0}&datetime={1}}";
        //hlf.Text = "诊断";
        //gv.Columns.Add(hlf);
    }