private List <RoleNodeList> GetData() { OperationResult objOperationResult = new OperationResult(); List <RoleNodeList> objData = _objNodeBL.GetRoleNode(ref objOperationResult, NodeId); if (objOperationResult.Success != 1) { Alert.ShowInTop("Error en operación:" + System.Environment.NewLine + objOperationResult.ExceptionMessage); } return(objData); }