private void _Bind() { try { if (grd_CityList.DataSourceID.Length >= 1) { grd_CityList.DataSourceID.Remove(0, grd_CityList.DataSourceID.Length); } objAppAdmin.CityName = txtSearchBox.Text; objAppAdmin.IsParticipating = chkIsParticipatingCity.Checked; dt = objAdmin.GetCityListCityMaster(objAppAdmin); grd_CityList.DataSourceID = ""; if (dt == null || dt.Rows.Count == 0) { dt = _CreateEmptyTable(); } DataView dv = dt.DefaultView; if (this.ViewState["SortExp"] == null) { //this.ViewState["SortExp"] = "make"; //this.ViewState["SortOrder"] = "ASC"; } else { dv.Sort = this.ViewState["SortExp"] + " " + this.ViewState["SortOrder"]; } grd_CityList.DataSource = dv; grd_CityList.DataBind(); } catch (Exception ex) { Helper.Log(ex.Message, "CityMaster/_Bind()"); } }