private void LoadTreatmentType() { try { TreatmentTypeBLL treatTypeBll = new TreatmentTypeBLL(); bool result = treatTypeBll.GetTreatmentType(); if (result) { treatmentTypeBindingSource.DataSource = treatTypeBll.treatmentTypes; cbTreatmentType.Refresh(); } } catch (Exception ex) { Display.ShowError(ex.Message); } }