private void DeleteConfirm_Closed(object sender, EventArgs e) { CustomMessage customMesage = sender as CustomMessage; if (customMesage.DialogResult == true) { IsEditing = false; if (PlanList.Contains(SelectPlanEntity)) { DeletedPlanList.Add(SelectPlanEntity); PlanList.Remove(SelectPlanEntity); } SelectPlanEntity = null; EditingPlanEntity = new PlanEntity(); uneditedPlanEntity = null; UpdateChanged("EditingOriginalName"); IsChanged = true; } }