public override void PopulateData()
        {
            try
            {
                using (TaxiDataContext db = new TaxiDataContext())
                {
                    //grdLister.DataSource = db.stp_GetCompanyFareSettings();

                    var list = (from a in db.stp_GetCompanyFareSettings()
                                orderby a.CompanyName
                                select new
                    {
                        Id = a.Id,
                        CompanyName = a.CompanyName,
                        FromDate = a.FromDate,
                        TillDate = a.TillDate,
                        OperatorType = a.OperatorType,
                        ActionType = a.ActionType,
                        Amount = a.Amount,
                    }).ToList();
                    grdLister.DataSource = list;
                    grdLister.Columns["Id"].IsVisible            = false;
                    grdLister.Columns["CompanyName"].HeaderText  = "Company";
                    grdLister.Columns["OperatorType"].HeaderText = "Action";
                    grdLister.Columns["ActionType"].HeaderText   = "";
                    grdLister.Columns["FromDate"].HeaderText     = "From Date";
                    grdLister.Columns["TillDate"].HeaderText     = "Till Date";
                    grdLister.Columns["Amount"].Width            = 120;
                    grdLister.Columns["CompanyName"].Width       = 220;
                    grdLister.Columns["OperatorType"].Width      = 140;
                    grdLister.Columns["ActionType"].Width        = 140;
                    grdLister.Columns["FromDate"].Width          = 150;;
                    grdLister.Columns["TillDate"].Width          = 150;
                    (grdLister.Columns["FromDate"] as GridViewDateTimeColumn).FormatString = "{0:dd/MM/yyyy HH:mm}";
                    (grdLister.Columns["TillDate"] as GridViewDateTimeColumn).FormatString = "{0:dd/MM/yyyy HH:mm}";
                    if (grdLister.Columns.Contains("btnEdit") == false)
                    {
                        GridButton();
                    }
                }
            }
            catch (Exception ex)
            { }
        }